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Directives
CPL 02-00-035 - CPL 2.35 CH-17 - Changes to the Regulatory General Industry Standard Alleged Violation |
Directives - Table of Contents |
| • Record Type: | Instruction |
| • Directive Number: | CPL 02-00-035 |
| • Old Directive Number: | CPL 2.35 CH-17 |
| • Title: | Changes to the Regulatory General Industry Standard Alleged Violation |
| • Information Date: | 06/17/1991 |
| • Standard Number: | 1910.252; 1910.253 |
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OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(1)(i): When the object to be welded or cut could not be readily moved, all movable fire hazards in the vicinity were not taken to a safe place:
2 29 CFR 1910.252(a)(1)(ii): When the object to be welded or cut could not be moved and all the fire hazards could not be removed, guards were not used to confine the heat, sparks, and slag to protect the immovable fire hazards:
3 29 CFR 1910.252(a)(1)(iii): Welding or cutting was performed, when the requirements stated in 29 CFR 1910.252(a)(1)(i) and 29 CFR 1910.252(a)(1)(ii) could not be followed:
OPTION 1 4 29 CFR 1910.252(a)(2)(i): Wherever there were floor openings or cracks in the flooring that could not be closed, precautions were not taken so that no readily combustible materials on the floor below would be exposed to sparks which might drop through the floor:
OPTION 2 5 29 CFR 1910.252(a)(2)(i): Precautions were not taken so that no readily combustible materials on the floor below would be exposed to sparks which might drop through cracks or holes in walls, open doorways and open or broken windows:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(2)(ii): Suitable extinguishing equipment was not maintained in a state of readiness for instant use:
2 29 CFR 1910.252(a)(2)(iii)(A): The employer did not provide fire watchers whenever welding or cutting was performed in locations where other than a minor fire might develop:
3 29 CFR 1910.252(a)(2)(iii)(A)(1): The employer did not provide fire watchers whenever welding or cutting was performed, where appreciable combustible material in building construction or contents was closer than 35 feet (10.7 m) to the point of operation:
4 29 CFR 1019.252(a)(2)(iii)(A)(2): The employer did not provide fire watchers whenever welding or cutting was performed, where appreciable combustibles were more than 35 feet (10.7 m) away but could be easily ignited by sparks:
5 29 CFR 1910.252(a)(2)(iii)(A)(3): The employer did not provide fire watchers whenever welding or cutting was performed, where wall or floor openings within a 35 foot (10.7 m) radius exposed combustible material in adjacent areas including concealed spaces in walls or floors:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(2)(iii)(A)(4): The employer did not provide fire watchers whenever welding or cutting was performed, where combustible materials were adjacent to the opposite side of metal partitions, walls, ceilings, or roofs and were likely to be ignited by conduction or radiation heat:
OPTION 1 2 29 CFR 1910.252(a)(2)(iii)(B): The employer did not ensure that assigned fire watchers had fire extinguisher equipment readily available and were trained in its use:
OPTION 2 3 29 CFR 1910.252(a)(2)(iii)(B): The employer did not ensure that assigned fire watchers were familiar with the facilities for sounding an alarm in the event of a fire:
OPTION 3 4 29 CFR 1910.252(a)(2)(iii)(B): The employer did not ensure that fire watchers watched for fires in all exposed areas and tried to extinguish them only when obviously within the capacity of the equipment provided, or otherwise sounded the alarm:
OPTION 4 5 29 CFR 1910.252(a)(2)(iii)(B): The employer did not ensure that fire watch was maintained for at least a half hour after completion of welding or cutting operations to detect and extinguish possible smoldering fires:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.252(a)(2)(iv): Cutting or welding was permitted in areas before the areas were inspected by the individual responsible for authorizing cutting and welding operations:
(a) (LOCATION)(IDENTIFY SPECIFIC OPERATION(S) AND/OR
CONDITIONS)(DESCRIBE HAZARD(S))
OPTION 2 2 29 CFR 1910.252(a)(2)(iv): The individual responsible for authorizing cutting or welding operations, did not designate precautions to be followed in granting authorization to proceed preferably in the form of a written permit:
OPTION 1 3 29 CFR 1910.252(a)(2)(v): Where combustible materials such as paper clippings, wood shavings, or textile fibers were on the floor, the employer did not ensure that the floor was swept clean for a radius of 35 feet (10.7 m) from the cutting or welding operations:
OPTION 3 5 29 CFR 1910.252(a)(2)(v): Where floors had been wet down, personnel operating arc welding or cutting equipment were not protected from possible shock:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(2)(vi)(A): Cutting or welding was permitted in areas not authorized by management:
2 29 CFR 1910.252(a)(2)(vi)(B): Cutting or welding was permitted in sprinklered buildings while such protection was impaired:
3 29 CFR 1910.252(a)(2)(vi)(C): Cutting or welding was permitted in the presence of explosive atmospheres (mixture of flammable gases, vapors, liquids, or dusts with air), or explosive atmospheres that could develop inside uncleaned or improperly prepared tanks or equipment which had previously contained such materials, or that could develop in areas with an accumulation of combustible dusts:
4 29 CFR 1910.252(a)(2)(vi)(D): Cutting or welding was permitted in areas near the storage of large quantities of exposed, readily ignitible materials such as bulk sulfur, baled paper, or cotton:
OPTION 1 5 29 CFR 1910.252(a)(2)(vii): Where practicable, combustible materials were not relocated at least 35 feet (10.7 m) from the cutting or welding operation work site :
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.252(a)(2)(vii): Where relocation of combustible was impracticable, cutting or welding was permitted when combustible were not protected with flameproofed covers or otherwise shielded with metal, asbestos guards, or curtains:
2 29 CFR 1910.252(a)(2)(viii): Cutting or welding was permitted where ducts and conveyor systems that might carry sparks to distant combustibles were not suitably protected or shut down:
3 29 CFR 1910.252(a)(2)(ix): Where cutting or welding was done near walls, partitions, ceiling or roof of combustible construction, fire-resistant shields or guards were not provided to prevent ignition:
4 29 CFR 1910.252(a)(2)(xi): The employer did not prohibit any attempt to weld on a metal partition, wall, ceiling, or roof having a combustible covering nor on walls or partitions of combustible sandwich-type panel construction:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(2)(xii): Cutting or welding on pipes or other metal in contact with combustible walls, partitions, ceilings, or roofs was undertaken where the work was close enough to cause ignition by conduction:
2 29 CFR 1910.252(a)(2)(xiii): The employer did not recognize its responsibility for the safe usage of cutting or welding equipment on its property, in accordance with 29 CFR 1910.252 (a)(2)(xiii)(A) through 29 CFR 1910.252(a)(2)(xiii)(D):
3 29 CFR 1910.252(a)(2)(xiii)(A): The employer did not recognize its responsibility for the safe usage of cutting or welding equipment, and based on fire potentials of plant facilities, did not establish areas for cutting and welding, and did not establish procedures for cutting and welding, in other areas:
4 29 CFR 1910.252(a)(2)(xiii)(B): The employer did not recognize its responsibility for the safe usage of cutting or welding equipment, and did not designate an individual responsible for authorizing cutting and welding operations in areas not specifically designed for such processes:
5 29 CFR 1910.252(a)(2)(xiii)(C): The employer did not recognize its responsibility for the safe usage of cutting or welding equipment, and did not insist that cutters or welders and their supervisors were suitably trained in the safe operation of their equipment and the safe use of the process:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(2)(xiii)(D): The employer did not recognize its responsibility for the safe usage of cutting or welding equipment, and did not advise all contractors about flammable materials or hazardous conditions of which they may not be aware:
2 29 CFR 1910.252(a)(2)(xiv)(A): The employer did not ensure that the supervisor was responsible for the safe handling of the cutting or welding equipment and the safe use of the cutting or welding process:
3 29 CFR 1910.252(a)(2)(xiv)(B): The employer did not ensure that the supervisor determined the combustible materials and hazardous areas present or likely to be present in the work location:
4 29 CFR 1910.252(a)(2)(xiv)(C)(1): The employer did not ensure that the supervisor protected the combustibles from ignition by having the work moved to a location free from dangerous combustibles:
5 29 CFR 1910.252(a)(2)(xiv)(C)(2): The employer did not ensure that if the work could not be moved, the supervisor had the combustibles moved to a safe distance from the work or had the combustibles properly shielded against ignition:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(2)(xiv)(C)(3): The employer did not ensure that the supervisor saw that cutting and welding was so scheduled that plant operations that might expose combustibles to ignition were not started during cutting or welding:
2 29 CFR 1910.252(a)(2)(xiv)(D): The employer did not ensure that the supervisor secured authorization for cutting or welding operations from the designated management representative:
3 29 CFR 1910.252(a)(2)(xiv)(E): The employer did not ensure that the supervisor determined that the cutter or welder secured his approval that conditions were safe before going ahead:
4 29 CFR 1910.252(a)(2)(xiv)(F): The employer did not ensure that the supervisor determined that fire protection and extinguishing equipment were properly located at the site:
5 29 CFR 1910.252(a)(2)(xiv)(G): The employer did not ensure that where fire watchers were required, the supervisor saw that they were available at the site:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(2)(xv): Cutting or welding was permitted not only in areas that were or had been made fire safe:
OPTION 1 2 29 CFR 1910.252(a)(3)(i): Welding, cutting, or other hot work was performed on used drums, barrels, tanks, or other containers that had not been cleaned so thoroughly as to make absolutely certain there were no flammable materials present or any substances such as greases, tars, acids, or other materials which where subjected to heat, might produce flammable or toxic vapors:
OPTION 2 3 29 CFR 1910.252(a)(3)(i): Welding. cutting, or hot work was performed on pipe lines or connections to the drum or vessel that had not been disconnected or blanked:
4 29 CFR 1910.252(a)(3)(ii): All hollow spaces, cavities, or containers were not vented to permit the escape of air or gases before preheating, cutting, or welding was performed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(a)(4)(i): In a confined space area, when arc welding was to be suspended for any substantial period of time, such as during lunch hour or overnight, all electrodes were not removed from the holders and the holders were not carefully located so that accidental contact could not occur and the machine could be disconnected from the power source:
OPTION 1 2 29 CFR 1910.252(a)(4)(ii): In a confined space area, in order to eliminate the possibility of gas escaping through leaks or improperly closed valves, when welding or cutting, the torch valves were not closed and the gas supply to the torch was not positively shut off at some point outside the confined area whenever the torch was not to be used for a substantial period of time, such as during lunch hour or overnight:
OPTION 2 3 29 CFR 1910.252(a)(4)(ii): In a confined space area, whenever the torch was not to be used for a substantial period of time, such as during lunch hour or overnight, where practicable, the torch and hose were not removed from the confined space:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(b)(1)(i): A welder or helper working on platforms, scaffolds, or runways was not protected against falling:
2 29 CFR 1910.252(b)(1)(ii): Welders did not place welding cable and other equipment so that it was clear of passageways, ladders, and stairways:
OPTION 1 3 29 CFR 1910.252(b)(2)(i)(A): Helmets or hand shields were not used during all arc welding or arc cutting operations:
NOTE: Helmets or hand shields are except for
submerged arc welding.
OPTION 2 4 29 CFR 1910.252(b)(2)(i)(A): During arc welding or arc cutting, helpers or attendants were not provided with proper eye protection:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(b)(2)(i)(B): Goggles or other suitable eye protection were not used during all gas welding or oxygen cutting operations:
2 29 CFR 1910.252(b)(2)(i)(C): All operators and attendants of resistance welding or resistance brazing equipment did not use transparent face shields or goggles, depending on the particular job, to protect their faces or eyes, as required:
3 29 CFR 1910.252(b)(2)(i)(D): Eye protection in the form of goggles were not provided where needed for brazing operations not covered in 29 CFR 1910.252(b)(2)(i)(A) through 29 CFR 1910.252(b)(2)(i)(C):
OPTION 1 4 29 CFR 1910.252(b)(2)(ii)(A): Helmets and hand shields being used were not made of material which is an insulator for heat and electricity:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.252(b)(2)(ii)(A): Helmets, shields, and goggles being used were readily flammable:
OPTION 3 2 29 CFR 1910.252(b)(2)(ii)(A): Helmets, shields, and goggles being used were not capable of withstanding sterilization:
3 29 CFR 1910.252(b)(2)(ii)(B): Helmets and hand shields being used were not arranged to protect the face, neck, and ears from direct radiant energy from the arc:
4 29 CFR 1910.252(b)(2)(ii)(C): Helmets were not provided with filter plates and cover plates designed for easy removal:
5 29 CFR 1910.252(b)(2)(ii)(D): All parts for protectors were not constructed of a material which would not readily corrode or discolor the skin:
6 29 CFR 1910.252(b)(2)(ii)(E): Goggles being used were not ventilated to prevent fogging of the lenses as much as practicable:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.252(b)(2)(ii)(F): All glass for lenses were not tempered, substantially free from striae, air bubbles, waves and other flaws:
OPTION 2 2 29 CFR 1910.252(b)(2)(ii)(F): When a lens was not ground to provide proper optical correction for defective vision, the front and rear surfaces of lenses and windows were not smooth and parallel:
3 29 CFR 1910.252(b)(2)(ii)(G): Lenses did not bear some permanent distinctive marking by which the source and shade could be readily identified:
4 29 CFR 1910.252(b)(2)(ii)(I): All filter lenses and plates did not meet the test for transmission of radiant energy prescribe in ANSI Z87.1-1968, American National Standard Practice for Occupational and Educational Eye and Face Protection:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.252(b)(2)(iii): Where the work permitted, the welder was not enclosed in an individual booth painted with a finish of low reflectivity such as zinc oxide (an important factor for absorbing ultraviolet radiations) and lamp black, or where the work did not permit, the welder was not enclosed with noncombustible screens similarly painted like the individual booth:
OPTION 2 2 29 CFR 1910.252(b)(2)(iii): Workers and other persons adjacent to the welding area were not protected from the rays by noncombustible or flameproof screens or shields:
OPTION 3 3 29 CFR 1910.252(b)(2)(iii): Workers and other persons adjacent to the welding area were not required to wear appropriate goggles, to protect them from the rays when noncombustible or flameproof screens or shields were not used:
4 29 CFR 1910.252(b)(3): Employees exposed to the hazards created by welding, cutting, or brazing operations were not protected by personal protective equipment in accordance with the requirements of 29 CFR 1910.132:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.252(b)(4)(iii): When welding or cutting was being performed in any confined spaces, the gas cylinders and welding machine were not left on the outside:
OPTION 2 2 29 CFR 1910.252(b)(4)(iii): Before operations were started in a confined space with welding or cutting equipment, heavy portable equipment mounted on wheels had not been securely blocked to prevent accidental movement:
OPTION 1 3 29 CFR 1910.252(b)(4)(iv): Where the welder must enter a confined space through a manhole or other small opening, means was not provided for quickly removing the welder in case of emergency:
OPTION 2 4 29 CFR 1910.252(b)(4)(iv): When safety belts and lifelines were used for quickly removing of welder from a confined space in case of emergency, the safety belt and lifeline were not so attached to the welder's body that his body would not be jammed in a small exit opening:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 3 1 29 CFR 1910.252(b)(4)(iv): An attendant with a preplanned rescue procedure was not stationed outside a confined space opening to observe the welder at all times in case of emergency:
OPTION 4 2 29 CFR 1910.252(b)(4)(iv): An attendant with a preplanned rescue procedure stationed outside a confined space opening to observe the welder at all times in case of emergency was not capable of putting rescue operations into effect:
3 29 CFR 1910.252(b)(4)(vii): After welding operations were completed, the welder did not mark the hot metal or provide some other means of warning other workers that the metal was hot:
4 29 CFR 1910.252(c)(1)(ii): When welding had to be performed in a space entirely screened on all sides, the screens were not so arranged that no serious restriction of ventilation exited:
5 29 CFR 1910.252(c)(1)(iii): Local exhaust or general ventilating systems were not provided and arranged to keep the amount of toxic fumes, gases, or dusts below the maximum allowable concentration as specified in 29 CFR 1910.1000:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(c)(1)(iv): The employer did not ensure that suppliers of welding materials had determined the hazard, if any, associated with the use of their materials in welding, cutting, etc.:
2 29 CFR 1910.252(c)(1)(iv)(A): All filler metals and fusible granular materials did not carry the following notice, as a minimum, on tags, boxes, or other containers:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(c)(1)(iv)(B): Brazing (welding) filler metals containing cadmium in significant amounts did not carry the following notice on tags, boxes, or other containers:
2 29 CFR 1910.252(c)(1)(iv)(C): Brazing and gas welding fluxes containing fluorine compounds did not have cautionary wording to indicate that they contained fluorine compounds:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(c)(2)(i): Mechanical ventilation was not provided when welding or cutting was done on metals not covered in 29 CFR 1910.252(c)(5) through 29 CFR 1910.252 (c)(12):
2 29 CFR 1910.252(c)(2)(i)(A): Mechanical ventilation was not provided in a space of less than 10,000 cubic feet (284 m3) per welder:
3 29 CFR 1910.252(c)(2)(i)(B): Mechanical ventilation was not provided in a room having a ceiling height of less than 16 feet (5 m):
4 29 CFR 1910.252(c)(2)(i)(C): Mechanical ventilation was not provided in confined spaces or where the welding space contained partitions, balconies, or other structural barriers to the extent that they significantly obstructed cross ventilation:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252 (c)(2)(ii): Mechanical ventilation provided did not meet the minimum rate of 2,000 cubic feet (57 m3) per minute per welder:
OPTION 1 2 29 CFR 1910.252(c)(4)(i): All welding and cutting operations carried on in confined spaces were not adequately ventilated to prevent the accumulation of toxic materials or possible oxygen deficiency:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.252(c)(4)(i): Where ventilation was being used during welding and cutting operations in a confined space, all replacing air redrawn was not clean and respirable:
2 29 CFR 1910.252(c)(4)(ii): In such circumstances where it was impossible to provide such ventilation, airline respirators or hose masks approved by the Mine Safety and Health Administration and the National Institute for Occupational Safety and Health, pursuant to the provisions of 30 CFR part 11, for this purpose, were not used:
3 29 CFR 1910.252(c)(4)(iii): In areas immediately hazardous to life, hose masks with blowers or self-contained breathing equipment were not used:
4 29 CFR 1910.252(c)(4)(iv): Where welding and cutting operations were carried on in confined spaces and where welders and helpers were provided with hose masks, hose masks with blowers or self-contained breathing equipment approved by the Mine Safety and Health Administration and the National Institute for Occupational Safety and Health, a worker was not stationed on the outside of such confined spaces to ensure the safety of those working within:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(c)(4)(v): Where welding and cutting operations were carried on in a confined space, oxygen was used for ventilation:
2 29 CFR 1910.252(c)(5)(i): In confined spaces, welding or cutting involving fluxes, coverings, or other materials which contain fluorine compounds was not done in accordance with 29 CFR 1910.252(c)(4):
3 29 CFR 1910.252(c)(6)(i): In confined spaces, welding or cutting involving zinc-bearing base or filler metals or metals coated with zinc-bearing materials was not done in accordance with 29 CFR 1910.252(c)(4):
4 29 CFR 1910.252(c)(6)(ii): Indoors, welding or cutting involving zinc-bearing base or filler metals coated with zinc-bearing materials was not done in accordance with 29 CFR 1910.252(c)(3):
5 29 CFR 1910.252(c)(7)(i): In confined spaces, welding involving lead base metals (erroneously called lead-burning) was not done in accordance with 29 CFR 1910.252(c)(4):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(c)(7)(ii): Indoors, welding involving
OPTION 1 2 29 CFR 1910.252(c)(7)(iii): In confined spaces or indoors, welding or cutting involving metals containing lead, other than as an impurity, or involving metals coated with lead- bearing materials, including paint was not done using local exhaust ventilation or airline respirators.
OPTION 2 3 29 CFR 1910.252(c)(7)(iii): Outdoors, welding or cutting operations involving metals containing lead, other than as an impurity, or involving metals coated with lead-bearing materials, including paint was not done using respiratory protective equipment approved by the Mine Safety and Health Administration and the National Institute for Occupational Safety and Health, pursuant to the provisions of 30 CFR part 11, for such purposes:
OPTION 3 4 29 CFR 1910.252(c)(7)(iii): In all cases, workers in the immediate vicinity of the cutting operation were not protected as necessary by local exhaust ventilation or airline respirators:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.252(c)(8): Welding or cutting indoors, outdoors, or in confined spaces involving beryllium-containing base or filler metals was not done using local exhaust ventilation and airline respirators, when atmospheric test under the most adverse conditions had not established that the workers' exposure was within the acceptable concentrations defined by 29 CFR 1910.1000:
OPTION 2 2 29 CFR 1910.252(c)(8): In all cases, workers in the immediate vicinity of the welding or cutting operation involving beryllium-containing base or filler metals were not protected as necessary by local exhaust ventilation or airline respirators:
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS) (DESCRIBE MATERIAL INVOLVED AND THE
HAZARD)
OPTION 1 3 29 CFR 1910.252(c)(9)(i): Welding or cutting indoors or in confined spaces involving cadmium-bearing or cadmium-coated base metals was not done using local exhaust ventilation or airline respirators, when atmospheric tests under the most adverse conditions had not established that the workers' exposure was within the acceptable concentrations defined by 29 CFR 1910.1000:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.252(c)(9)(i): Outdoors, welding or cutting involving cadmium-bearing or cadmium-coated base metals was not done using respiratory protective equipment such as fume respirators approved by the Mine Safety and Health Administration and the National Institute for Occupational Safety and Health, pursuant to the provisions of 30 CFR part 11, for such purposes:
2 29 CFR 1910.252(c)(9)(ii): Welding (brazing) involving cadmium-bearing filler metals was not done using ventilation as prescribed in 29 CFR 1910.252(c)(3) or 29 CFR 1910.252 (c)(4) when the work was done in a confined space:
OPTION 1 3 29 CFR 1910.252(c)(10): Welding or cutting indoors or in a confined space involving metals coated with mercury-bearing materials including paint was not done using local exhaust ventilation or airline respirators, when atmospheric tests under the most adverse conditions had not established that the workers' exposure was within the acceptable concentrations defined by 29 CFR 1910.1000:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.252(c)(10): Outdoors, welding or cutting involving metals coated with mercury-bearing materials including paint was not done using respiratory protective equipment approved by the Mine Safety and Health Administration and the National Institute for Occupational Safety and Health, pursuant to the provisions of 30 CFR part 11, for such purposes:
2 29 CFR 1910,252(c)(11)(i): In the use of cleaning materials, because of their possible toxicity or flammability, appropriate precautions, such as manufacturers instructions were not followed by the employer:
3 29 CFR 1910.252(c)(11)(ii): Degreasing and other cleaning operations involving chlorinated hydrocarbons was not so located that no vapors from these operations would reach or be drawn into the atmosphere surrounding any welding operation:
4 29 CFR 1910.252(c)(12): Oxygen cutting, using either a chemical flux or iron powder or gas-shielded arc cutting of stainless steel, was not done using mechanical ventilation adequate to remove the fumes generated:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.252(c)(13): First-aid equipment was not available at all times:
OPTION 2 2 29 CFR 1910.252(c)(13): All injuries were not reported as soon as possible for medical attention:
OPTION 3 3 29 CFR 1910.252(c)(13): First-aid was not rendered until medical attention could be provided:
4 29 CFR 1910.252(d)(1)(i): During the welding or cutting operations on transmission pipelines the requirements of 29 CFR 1910.252(b) and (c), and 29 CFR 1910.254 were not observed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(d)(1)(ii): Where field shop operations were involved for fabrication of fittings, river crossings, road crossings, and pumping and compressor stations, the requirements of 29 CFR 1910.252(a), (b), and (c), and 29 CFR 1910.253 and 29 CFR 1910.254 were not observed during welding or cutting operations:
2 29 CFR 1910.252(d)(1)(iii): When arc welding was performed in wet conditions, or under conditions of high humidity, special protection against electric shock was not supplied:
OPTION 1 3 29 CFR 1910.252(d)(1)(iv): In pressure testing of pipelines, the workers and the public were not protected against injury by the blowing out of closures or other pressure restraining devices:
OPTION 2 4 29 CFR 1910.252(d)(1)(iv): In pressure testing of pipelines, protection was not provided against expulsion of loose dirt that could have become trapped in the pipe:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(d)(1)(v): The welded construction of the transmission pipelines was not conducted in accordance with the Standard for Welding Pipe Lines and Related Facilities, API Std. 1104-1968.
2 29 CFR 1910.252(d)(1)(vi): The connection, by welding, of branches to pipelines carrying flammable substances was not performed in accordance with Welding or Hot Tapping on Equipment Containing Flammables, API Std. PSD No.2201-1963.
3 29 CFR 1910.252(d)(1)(vii): The use of X-rays and radioactive isotopes for the inspection of welded pipeline joints was not carried out in conformance with the American National Standard Safety Standard for Non-Medical X-ray and Sealed Gamma-Ray Sources, ANSI Z54.1-1963:
4 29 CFR 1910.252(d)(2)(i): When welding or cutting on mechanical piping systems, the requirements of 29 CFR 1910.252 (a), (b), and (c), and 29 CFR 1910.253 and 29 CFR 1910.254 were not observed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.252(d)(2)(ii): The use of X-rays and radioactive isotopes for the inspection of welded piping joints on mechanical piping systems was not in conformance with the American National Standard Safety Standard for Non-Medical X- ray and Sealed Gamma-Ray Sources, ANSI Z54.1-1963:
OPTION 1 2 29 CFR 1910.253(a)(1): Mixtures of fuel gases and air or oxygen that may be explosive during oxygen-fuel gas welding were not guarded against:
OPTION 2 3 29 CFR 1910.253(a)(1): The use of adevice or attachment facilitating or permitting mixtures of air or oxygen with flammable gases prior to consumption not approved for the purpose was allowed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(a)(2): Acetylene used in an oxygen-fuel gas system was generated, piped or utilized at a pressure in excess of 15 psig (103 kPa gauge pressure) or 30 psia (206 kPa absolute):
OPTION 2 2 29 CFR 1910.253(a)(2): The use of liquid acetylene in a oxygen-fuel generated gas system was not prohibited:
3 29 CFR 1910.253(a)(3): Apparatus such as torches, regulators or pressure-reducing valves, acetylene generators, and manifolds used in an oxygen-fuel gas system had not been approved:
OPTION 1 4 29 CFR 1910.253(a)(4): Workmen in charge of the oxygen or fuel-gas supply equipment, including generators, and oxygen or fuel-gas distribution piping systems were not instructed and judged competent by their employers for this important work before being left in charge:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(a)(4): Rules and instructions covering the operations and maintenance of oxygen or fuel-gas supply equipment including generators, and oxygen or fuel-gas distribution piping systems were not readily available:
2 29 CFR 1910.253(b)(1)(i): All portable cylinders used for the storage and shipment of compressed gases were not constructed and maintained in accordance with the regulations of the U.S. Department of Transportation, 49 CFR parts 171-179:
OPTION 1 3 29 CFR 1910.253(b)(1)(ii): Compressed gas cylinders were not legibly marked, for the purpose of identifying the gas content, with either the chemical or the trade name of the gas:
OPTION 2 4 29 CFR 1910.253(b)(1)(ii): The marking on compressed gas cylinders identifying the content wirh either the chemical or trade name of the gas was not marked by means of stenciling, stamping, or labeling, and could be readily removed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 3 1 29 CFR 1910.253(b)(1)(ii): Whenever practical, the marking identtifying the gas content was not located on the shoulder of the cylinder, the method that conforms to the American National Standard Method for Marking Portable Compressed Gas Containers to Identify the Material Contained, ANSI Z48.1- 1954:
2 29 CFR 1910.253(b)(1)(iii): Compressed gas cylinders were not equipped with connections complying with the American National Standard Compressed Gas Cylinder Valve Outlet and Inlet Connections, ANSI B57.1-1965:
3 29 CFR 1910.253(b)(1)(iv): All cylinders with a water weight capacity of over 30 pounds (13.6 kg) were not equipped with means of connecting a valve protection cap or with a collar or recess to protect the valve:
4 29 CFR 1910.253(b)(2)(i): Compressed gas cylinders were not kept away from radiators and other sources of heat:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(b)(2)(ii): Inside of buildings, cylinders were not stored in a well-protected, well-ventilated, dry location, at least 20 feet (6.1 m) from highly combustible materials such as oil or excelsior:
OPTION 2 2 29 CFR 1910.253(b)(2)(ii): Assigned storage spaces for cylinders was not located away from elevators, stairs, or gangways where cylinders could not be knocked over or damaged by passing or falling objects, or subject to tampering by unauthorized persons:
OPTION 3 3 29 CFR 1910.253(b)(2)(ii): Cylinders were kept in unventilated enclosures such as lockers and cupboards:
4 29 CFR 1910.253(b)(2)(iii): Empty cylinders did not have their valves closed while in storage:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(b)(2)(iv): Valve protection caps, where cylinders were designed to accept caps, were not always in place, hand-tight, except when cylinders were in use or connected for use:
2 29 CFR 1910.253(b)(3): Fuel-gas cylinders stored inside a building were not limited to a total gas capacity of 2, 000 cubic feet (56 m3) or 300 pounds (135.9 kg) of liquefied petroleum gas:
OPTION 1 3 29 CFR 1910.253(b)(3)(i): Liquefied petroleum gas cylinders in excess of 2, 000 cubic feet (56 m3) total gas capacity of cylinders or 300 (135.9 kg) pounds of liquified petroleum gas were not stored in a separate room or compartment conforming to the requirements specified in 29 CFR 1910.253(f)(6)(i)(H) and 29 CFR 1910.253(f)(6)(i)(I), or kept outside or in a special building:
OPTION 2 4 29 CFR 1910.253(b)(3)(i): Special buildings, rooms, or compartments had open flame for heating or lighting and were not well ventilated when used for storage of fuel-gas cylinders:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 3 1 29 CFR 1910.253(b)(3)(i): Special buildings, rooms, or compartments were used for storage of calcium carbide in quantities that exceeded 600 (271.8 kg) pounds, in metal containers complying with 29 CFR 1910.253(g)(1)(i) and 29 CFR 1910.253(g)(1)(ii):
OPTION 4 2 29 CFR 1910.253(b)(3)(i): Special buildings, rooms, or compartments were used for storage of calcium carbide which was not in metal containers that complied with 29 CFR 1910.253(g)(1)(i) and 29 CFR 1910.253(g)(1)(ii):
3 29 CFR 1910.253(b)(3)(ii): Acetylene cylinders in storage were not stored valve end up:
4 29 CFR 1910.253(b)(4)(i): Oxygen cylinders were stored near highly combustible material, especially oil and grease; or near reserve stocks of carbide and acetylene or other fuel-gas cylinders, or near other substance likely to cause or accelerate fire; or in an acetylene generator compartment:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(b)(4)(ii): Oxygen cylinders stored in outside generator houses were not separated from the generator or carbide storage rooms by a noncombustible partition having a fire-resistance rating of at least 1 hour:
OPTION 2 2 29 CFR 1910.253(b)(4)(ii): The partition that separated the oxygen cylinders from the generator or carbide storage rooms was not with out openings and was not gas-tight:
3 29 CFR 1910.253(b)(4)(iii): Oxygen cylinders in storage were not separated from fuel-gas cylinders or combustible materials (especially oil or grease), a minimum distance of 20 feet (6.1 m) or by a noncombustible barrier at least 5 feet (1.5 m) high having a fire-resistance rating of at least one-half hour:
4 29 CFR 1910.253(b)(4)(iv): The employer did not comply with the provisions of the Standard for Bulk Oxygen Systems at Consumer Sites, NFPA No. 566-1965, as specified in this standard for liquid oxygen storage, where a liquid oxygen system was used to supply gaseous oxygen for welding or cutting operations:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(b)(5)(i): Cylinders, cylinder valves, couplings, regulators, hoses, and apparatus were not kept free from oily or greasy substances:
OPTION 2 2 29 CFR 1910.253(b)(5)(i): Oxygen cylinders and apparatus were handled with oily hands or gloves:
OPTION 3 3 29 CFR 1910.253(b)(5)(i): A jet of oxygen was permitted to strike an oily surface, greasy clothes, or to enter a fuel oil or other storage tank:
OPTION 1 4 29 CFR 1910.253(b)(5)(ii)(A): When transporting cylinders by a crane or derrick, a cradle, boat, or a suitable platform was not used:
OPTION 2 5 29 CFR 1910.253(b)(5)(ii)(A): Slings or electric magnets were used when transporting cylinders by a crane or derrick:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(b)(5)(ii)(B): When transporting by a crane or derrick, cylinders were being dropped or struck or were permitted to strike each other violently:
OPTION 1 2 29 CFR 1910.253(b)(5)(ii)(C): Valve-protection caps were used for lifting cylinders from one vertical position to another:
OPTION 2 3 29 CFR 1910.253(b)(5)(ii)(C): Bars were used under valves or valve-protection caps to pry cylinders loose when frozen to the ground or otherwise fixed:
4 29 CFR 1910.253(b)(5)(ii)(D): Cylinders were not secured on a special truck, regulators were not removed and valve- protection caps, when provided for, were not put in place before cylinders were moved:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(b)(5)(ii)(E): Cylinders not having fixed hand wheels did not have keys, handles, or nonadjustable wrenches on valve stems while these cylinders were in service:
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS)
2 29 CFR 1910.253(b)(5)(ii)(F): Cylinder valves were not closed before the cylinders were moved:
3 29 CFR 1910.253(b)(5)(ii)(G): Cylinder valves were not closed when the work was finished:
4 29 CFR 1910.253(b)(5)(ii)(H): Valves of empty cylinders were not closed:
OPTION 1 5 29 CFR 1910.253(b)(5)(ii)(I): Cylinders were not kept far enough away from the actual welding or cutting operation so that sparks, hot slag, or flame would not reach them:
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS)
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(b)(5)(ii)(I): Fire-resistant shield were not provided when cylinders could not be kept far enough away from the actual welding or cutting operation so that sparks, hot slag, or flame would not reach them:
OPTION 1 2 29 CFR 1910.253(b)(5)(ii)(J): Cylinders were placed where they might become part of an electric circuit:
OPTION 2 3 29 CFR 1910.253(b)(5)(ii)(J): Cylinder contact with third rails, trolley wires, etc., were not avoided:
OPTION 3 4 29 CFR 1910.253(b)(5)(ii)(J): Cylinders were not kept away from radiators, piping systems, layout tables, etc., that may be used for grounding electric circuits such as for arc welding machines:
OPTION 4 5 29 CFR 1910.253(b)(5)(ii)(J): Practices such as tapping of an electrode against a cylinder to strike an arc were not prohibited:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(b)(5)(ii)(K): Cylinders were being used as rollers or supports:
2 29 CFR 1910.253(b)(5)(ii)(L): The numbers and markings stamped into cylinders had been tampered with:
OPTION 1 3 29 CFR 1910.253(b)(5)(ii)(M): The employer did not ensure that no person, other than the gas supplier, attempted to mix gases in a cylinder:
OPTION 2 4 29 CFR 1910.253(b)(5)(ii)(M): An unauthorized person refilled a cylinder:
5 29 CFR 1910.253(b)(5)(ii)(N): The employer did not ensure that no one tampered with the safety devices in cylinders or valves:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(b)(5)(ii)(O): The employer did not ensure that cylinders were not dropped or otherwise roughly handled:
OPTION 1 2 29 CFR 1910.253(b)(5)(ii)(P): Oxygen from a cylinder, not connected to a manifold, was used without first attaching an oxygen regulator to the cylinder valve:
OPTION 2 3 29 CFR 1910.253(b)(5)(ii)(P): Before connecting the regulator to the cylinder valve, the valve was not opened slightly for an instant and then closed:
4 29 CFR 1910.253(b)(5)(ii)(Q): A hammer or wrench was used to open cylinder valves that could not be opened by hand; the supplier was not notified:
5 29 CFR 1910.253(b)(5)(ii)(R)(1): The employer after experiencing cylinder trouble, reported promptly to the supplier indicating the character of the trouble and the cylinder's serial number, but did not ensure that the supplier's instructions as to its disposition were followed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(b)(5)(ii)(R)(2): Complete removal of the stem from a diaphragm-type cylinder valve was not avoided:
OPTION 1 2 29 CFR 1910.253(b)(5)(iii)(A): Fuel-gas cylinders were not placed with valve end up whenever they were in use:
OPTION 2 3 29 CFR 1910.253(b)(5)(iii)(A): Liquified gases were not stored and shipped with the valve end up:
4 29 CFR 1910.253(b)(5)(iii)(B): Cylinders were not handled carefully which could result in damage to the cylinder, valve or safety devices and cause leakage from rough handling, knocks, or falls:
OPTION 1 5 29 CFR 1910.253(b)(5)(iii)(C): Before connecting a regulator to a cylinder valve, the valve was not opened slightly and closed immediately:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(b)(5)(iii)(C): The employer did not ensure that the employee was standing to one side when opening the cylinder valve:
2 29 CFR 1910.253(b)(5)(iii)(D): Before a regulator was removed from a cylinder valve, the cylinder valve was not closed and the gas was not released from the regulator:
3 29 CFR 1910.253(b)(5)(iii)(E): The employer did not ensure that nothing was placed on top of an acetylene cylinder when in use, which could have damaged the safety device or interfered with the quick closing of the valve:
4 29 CFR 1910.253(b)(5)(iii)(F): Cylinders were found to have leaky valves or fittings which could not be stopped by closing of the valve were not taken outdoors away from sources of ignition and slowly emptied:
5 29 CFR 1910.253(b)(5)(iii)(H): The employer did not ensure that safety devices were not tampered with:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(b)(5)(iii)(I): Fuel-gas was used from cylinders through torches or other devices equipped with shutoff valves without reducing the pressure through a suitable regulator attached to the cylinder valve or manifold:
2 29 CFR 1910.253(b)(5)(iii)(J): The employer did not ensure that cylinders were always opened slowly:
3 29 CFR 1910.253(b)(5)(iii)(K): The employer did not ensure that an acetylene cylinder valve was not opened more than one and one-half turns of the spindle:
OPTION 1 4 29 CFR 1910.253(b)(5)(iii)(L): Where a special wrench was required, it was not left in position on the stem of the valve while the cylinder was in use so that the fuel-gas flow could be quickly turned off in case of emergency:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(b)(5)(iii)(L): Where manifolded or coupled cylinders were being used, at least one special wrench was not always available for immediate use so that the fuel-gas flow could be quickly turned off in case of an emergency:
2 29 CFR 1910.253(c)(1)(i): Fuel-gas manifolds were not approved either separately for each component part or as an assembled unit:
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS) (STATE WHETHER A SEPARATE COMPONENT
PART OR ASSEMBLED UNIT INVOLVED)
3 29 CFR 1910.253(c)(1)(ii): Fuel-gas cylinders connected to one manifold inside a building were not limited to a total capacity not exceeding 300 pounds (135.9 kg) of liquefied petroleum gas or 3,000 cubic feet (84 m3) of other fuel-gas:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(c)(1)(iii): Fuel-gas cylinders connected to one manifold having an aggregate capacity exceeding 300 pounds (135.9 kg) of liquefied petroleum gas or 3,000 cubic feet (84 m3) of other fuel-gas were not located outdoors, or in a separate building or room constructed in accordance with 29 CFR 1910.253(f)(6)(i)(H) and 29 CFR 1910.253(f)(6)(i)(I):
OPTION 1 2 29 CFR 1910.253(c)(1)(iv): Separate manifold buildings or rooms used for storage of calcium carbide and cylinders containing fuel gases had open flames for heating or lighting:
OPTION 2 3 29 CFR 1910.253(c)(1)(iv): Separate manifold buildings or rooms used for storage of calcium carbide and cylinders containing fuel gases were not well-ventilated:
4 29 CFR 1910.253(c)(1)(v): High-pressure fuel-gas manifolds were not provided with approved pressure regulating devices:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(c)(2)(i): High-pressure oxygen manifolds for use with cylinders were not approved either separately for each component part or as an assembled unit:
OPTION 1 2 29 CFR 1910.253(c)(2)(ii): Oxygen manifolds were located in an acetylene generator room:
OPTION 2 3 29 CFR 1910.253(c)(2)(ii): Oxygen manifolds were not separated from fuel-gas cylinders or combustible materials (especially oil or grease), a minimum distance of 20 feet (6.1 m) or by a noncombustible barrier at least 5 feet (1.5 m) high having a fire-resistance rating of at least one-half hour:
4 29 CFR 1910.253(c)(2)(iii): Oxygen cylinders connected to one manifold were not limited to a total gas capacity of 6,000 cubic feet (168 m3):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(c)(2)(iv): An oxygen manifold, to which cylinders having an aggregate capacity of more than 6,000 cubic feet (168 m3) of oxygen were connected, was not located outdoors or in a separate noncombustible building:
OPTION 2 2 29 CFR 1910.253(c)(2)(iv): An oxygen manifold, to which cylinders having an aggregate capacity of more than 6,000 cubic feet (168 m3) of oxygen were connected, located in a separate noncombustible building having other occupancy was not located in a separate room of noncombustible construction having a fire-resistance rating of at least one-half hour or in an area with no combustible material within 20 feet (6.1 m) of the manifold:
3 29 CFR 1910.253(c)(2)(v): The employer having an oxygen manifold or oxygen bulk supply system which has storage capacity of more than 13,000 cubic feet (364 m3) of oxygen (measured at 14.7 psia (101 kPa) and 70 oF (21.1 oF), connected in service or ready for service, or more than 25,000 cubic feet (700 m3) of oxygen (measured at 14.7 psia (101 kPa) and 70 oF (21.1 oC) including unconnected reserves on hand at the site, did not comply with the provisions of the Standard for Bulk Oxygen Systems at Consumer Sites, NFPA No. 566-1965:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(c)(2)(vi): High-pressure oxygen manifolds were not provided with approved pressure-regulating devices:
OPTION 1 2 29 CFR 1910.253(c)(3)(i): Low-pressure oxygen manifolds were not of substantial construction suitable for use with oxygen at a pressure of 250 psig (1.7 MPa):
OPTION 2 3 29 CFR 1910.253(c)(3)(i): Low-pressure oxygen manifolds for use with oxygen at a pressure of 250 psig (1.7 MPa) did not have a minimum bursting pressure of 1,000 psig (6.8 MPa):
OPTION 3 4 29 CFR 1910.253(c)(3)(i): Low-pressure oxygen manifolds for use with oxygen at a pressure of 250 psig (1.7 MPa) were not protected by a safety relief devices which would relieve at a maximum pressure of 500 psig (3.4 MPa):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(c)(3)(ii): Low-pressure oxygen manifold hose and hose connections subject to cylinder pressure did not comply with 29 CFR 1910.253(e)(5):
OPTION 2 2 29 CFR 1910.253(c)(3)(ii): Low-pressure oxygen manifold hoses did not have a minimum bursting pressure of 1,000 psig (6.8 MPa):
OPTION 1 3 29 CFR 1910.253(c)(3)(iii): The assembled manifold including leads were not tested and proven gas-tight at a pressure of 300 psig (2.04 MPa):
OPTION 2 4 29 CFR 1910.253(c)(3)(iii): The fluid used for testing oxygen manifolds was not oil-free and was combustible:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(c)(3)(iv): The location of the oxygen manifolds did not comply with 29 CFR 1910.253(c)(2)(ii), 29 CFR 1910.253(c)(2)(iii), 29 CFR 1910.253(c)(2)(iv), and 29 CFR 1910.253(c)(2)(v):
2 29 CFR 1910.253(c)(4)(i): Portable outlet headers were used indoors:
3 29 CFR 1910.253 (c)(4)(ii): Each outlet on the service piping from which oxygen or fuel-gas was withdrawn to supply a portable outlet header was not equipped with a readily accessible shutoff valve:
4 29 CFR 1910.253(c)(4)(iii): Hose and hose connections used for connecting the portable outlet header to the service piping did not comply with 29 CFR 1910.253(e)(5):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(c)(4)(iv): Master shutoff valves for both oxygen and fuel-gas were not provided at the entry end of the portable outlet header:
2 29 CFR 1910.253(c)(4)(v): Portable outlet headers for fuel- gas service were not provided with an approved hydraulic back- pressure valve installed at the inlet and preceding the service outlets:
3 29 CFR 1910.253(c)(4)(vi): Each service outlet on portable outlet headers was not provided with a valve assembly that included a detachable outlet seal cap, chained or otherwise attached to the body of the valve:
4 29 CFR 1910.253(c)(4)(vii): Materials and fabrication procedures for portable outlet headers did not comply with 29 CFR 1910.253(d)(1), (d)(2), and (d)(5):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(c)(4)(viii): Portable outlet headers were not provided with frames which would support the equipment securely in the correct operating position and protect them from damage during handling and operation:
2 29 CFR 1910.253(c)(5)(i): Cylinder manifolds were not installed under the supervision of someone familiar with the proper practices with reference to their construction and use:
3 29 CFR 1910.253(c)(5)(ii): All manifolds and parts used in methods of manifolding were not used only for the gas or gases for which they were approved:
4 29 CFR 1910.253(c)(5)(iii): When acetylene cylinders were coupled, approved flash arresters were not installed between each cylinder and the coupler block:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(c)(5)(iv): The aggregate capacity of fuel-gas cylinders connected to a portable manifold inside a building exceeded 3,000 cubic feet (84 m3) of gas:
2 29 CFR 1910.253(c)(5)(v): Acetylene and liquefied fuel-gas cylinders were not manifolded in a vertical position:
3 29 CFR 1910.253(c)(5)(vi): The pressure in the gas cylinders connected to and discharged simultaneously through a common manifold was not approximately equal:
4 29 CFR 1910.253(d)(1)(i)(A): Piping and fittings did not comply with section 2, Industrial Gas and Air Piping Systems, of the American National Standard Code for Pressure Piping ANSI B31.1-1967:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(d)(1)(i)(A)(1): Pipe used in the service piping system was not at least Schedule 40:
OPTION 2 2 29 CFR 1910.253(d)(1)(i)(A)(1): Fittings used in the service piping system was not at least standard weight in sizes up to and including 6-inche nominal:
3 29 CFR 1910.253(d)(1)(i)(A)(2): Copper tubing used in the piping system was not Type K or L in accordance with the Standard Specification for Seamless Copper Water Tube, ASTM B88-66a:
4 29 CFR 1910.253(d)(1)(i)(B): Piping used in the service piping system was not steel, wrought iron, brass or copper pipe, or seamless copper, brass or stainless steel tubing:
5 29 CFR 1910.253(d)(1)(ii)(A): Oxygen piping and fittings at pressures in excess of 700 psig (4.8 MPa) was not of stainless steel or copper alloys:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(d)(1)(ii)(B): The hose used to connect the outlet of a manifold pressure regulator to piping did not have a minimum of hose bursting pressure of 1,000 psig (6.8 MPa):
OPTION 1 2 29 CFR 1910.253(d)(1)(ii)(C): When oxygen was supplied to a service piping system from a low-pressure oxygen manifold without an intervening pressure regulating device, the piping system did not have a minimum design pressure of 250 psig (1.7 MPa):
OPTION 2 3 29 CFR 1910.253(d)(1)(ii)(C): A pressure regulating device was not used at each station outlet when the connected equipment was used at pressure less than 250 psig (1.7 MPa):
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS)
4 29 CFR 1910.253(d)(1)(iii)(A): Piping used for acetylene or acetylene compounds was not steel or wrought iron:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(d)(1)(iii)(B): Unalloyed copper was used with acetylene or acetylene compounds:
OPTION 1 2 29 CFR 1910.253(d)(2)(i): Joints in steel or wrought iron piping were not welded, threaded or flanged:
OPTION 2 3 29 CFR 1910.253(d)(2)(i): The employer did not prohibit the use of gray or white cast iron fittings in the service piping system:
OPTION 1 4 29 CFR 1910.253(d)(2)(ii): Joints in brass or copper pipe were not welded, brazed, threaded or flanged:
OPTION 2 5 29 CFR 1910.253(d)(2)(ii): Socket type joints in use were not brazed with silver-brazing alloy or similar high melting point (not less than 800 oF (427 oC)) filler metal:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(d)(2)(iii): Joints in seamless copper, brass, or stainless steel tubing were not approved gas tubing fittings and the joints were not brazed:
OPTION 2 2 29 CFR 1910.253(d)(2)(iii): Socket type joints used in seamless copper, brass, or stainless steel tubing were not brazed with silver-brazing alloy or similar high melting point (not less than 800 oF (427 oC)) filler metal:
3 29 CFR 1910.253(d)(3)(i): The employer did not ensure that distribution lines were installed and maintained in a safe operating condition:
OPTION 1 4 29 CFR 1910.253(d)(3)(ii): All piping in the service piping system was not run as directly as practicable, protected against physical damage, and proper allowance was not made for expansion and contraction, jarring and vibration:
OPTION 2 5 29 CFR 1910.253(d)(3)(ii): Service piping system pipe laid underground in earth was not located below the frost line and protected against corrosion:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 3 1 29 CFR 1910.253(d)(3)(ii): After assembly of the service piping system, piping was not thoroughly blown out with air, nitrogen, or carbon dioxide to remove foreign materials:
OPTION 4 2 29 CFR 1910.253(d)(3)(ii): The employer did not ensure that in an oxygen piping system, only oil-free air, oil-free nitrogen, or carbon dioxide was used to remove foreign materials:
OPTION 1 3 29 CFR 1910.253(d)(3)(iii): The employer did not ensure that only piping which had been welded or brazed was installed in tunnels, trenches or ducts:
OPTION 2 4 29 CFR 1910.253(d)(3)(iii): Shutoff valves for welded or brazed piping installed in tunnels, trenches, or ducts were not located outside such conduits:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(d)(3)(iv): Low points in piping carrying moist gas were not drained into drip pots constructed so as to permit pumping or draining out the condensate at necessary intervals:
OPTION 2 2 29 CFR 1910.253(d)(3)(iv): For piping carrying moist gas drain valves were not installed having outlets normally closed with screw caps or plugs to permit pumping or draining out the condensate at necessary intervals:
OPTION 3 3 29 CFR 1910.253(d)(3)(iv): Open end valves or petcocks were used for draining out piping carrying moist gas:
OPTION 4 4 29 CFR 1910.253(d)(3)(iv): Piping carrying moist gas had pipes leading to the surface of the ground that were not cased or jacketed where necessary to prevent loosening or breaking:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(d)(3)(v): Gas cocks or valves were not provided for all buildings at points where they would be readily accessible for shutting off the gas supply to those buildings in any emergency:
OPTION 2 2 29 CFR 1910.253(d)(3)(v): A shutoff valve was not provided in the discharge line from the generator, gas holder, manifold or other source of supply for the buildings in case of any emergency:
3 29 CFR 1910.253(d)(3)(vi): Shutoff valves were installed in safety relief lines in such a manner that the safety relief device could be rendered ineffective:
OPTION 1 4 29 CFR 1910.253(d)(3)(vii): Fittings and lengths of pipe were not examined internally before assembly and, if necessary, freed from scale or dirt:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(d)(3)(vii): Oxygen piping and fittings were not washed out with a suitable solution which would effectively remove grease and dirt but would not react with oxygen:
OPTION 1 2 29 CFR 1910.253(d)(3)(viii): Piping was not thoroughly blown out after assembly to remove foreign materials:
OPTION 2 3 29 CFR 1910.253(d)(3)(viii): For oxygen piping, oil-free air, oil-free nitrogen, or oil-free carbon dioxide was not used for cleaning purposes:
4 29 CFR 1910.253(d)(3)(ix): When flammable gas lines or other parts of equipment were being purged of air or gas, open lights or other sources of ignition were permitted near uncapped openings:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(d)(3)(x): Welding or cutting was performed on an acetylene or oxygen pipeline, including the attachment of hangers or supports, before the line had been purged:
2 29 CFR 1910.253(d)(4)(i): Underground pipe and tubing and outdoor ferrous pipe and tubing were not covered or painted with a suitable material for protection against corrosion:
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS)
3 29 CFR 1910.253(d)(4)(ii): Aboveground piping systems were not marked in accordance with the American National Standard Scheme for the Identification of Piping Systems, ANSI A13.1- 1956:
4 29 CFR 1910.253(d)(4)(iii): Station outlets were not marked to indicate the name of the gas:
OPTION 1 5 29 CFR 1910.253(d)(5)(i): Piping systems were not tested and proved gastight at 1 1/2 times the maximum operating pressure:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(d)(5)(i): Piping systems were not thoroughly purged of air before being placed in service:
OPTION 3 2 29 CFR 1910.253(d)(5)(i): The material used for testing oxygen lines was not oil free and noncombustible:
OPTION 4 3 29 CFR 1910.253(d)(5)(i): The employer did not ensure that flames were not used to detect leaks in piping systems:
4 29 CFR 1910.253(d)(5)(ii): When flammable gas lines or other parts of equipment were being purged of air or gas, sources of ignition were permitted near uncapped openings:
5 29 CFR 1910.253(e)(1): Equipment was not installed and used only in the service for which it was approved and as recommended by the manufacturer:
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS)
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(e)(2): Service piping systems were not protected by pressure relief devices set to function at not more than the design pressure of the systems and discharging upwards to a safe location:
2 29 CFR 1910.253(e)(3)(i): The fuel-gas and oxygen piping systems, including portable outlet headers did not incorporate the protective equipment shown in Figures Q-1, Q-2, and Q-3:
3 29 CFR 1910.253(e)(3)(ii): An approved protective equipment (designated PF in Figures Q-1, Q-2, and Q-3) were not installed in fuel-gas piping system:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(e)(3)(ii)(1): The protective equipment was not located in the main supply line, as in Figure Q-1 or at the head of each branch line, as in Figure Q-2 or at each location where fuel-gas was withdrawn, as in Figure Q-3:
OPTION 2 2 29 CFR 1910.253(e)(3)(ii)(1): Where branch lines were of 2-
3 29 CFR 1910.253(e)(3)(ii)(2): Backflow protection was not provided by an approved device that would prevent oxygen from flowing into the fuel-gas system or fuel from flowing into the oxygen system:
4 29 CFR 1910.253(e)(3)(ii)(3): Flash-back protection was not provided by an approved device that would prevent flame from passing into the fuel-gas system:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(e)(3)(ii)(4): Back-pressure protection was not provided by an approved pressure-relief device set at a pressure not greater than the pressure rating of the backflow or the flashback protection device, whichever was lower:
OPTION 2 2 29 CFR 1910.253(e)(3)(ii)(4): The pressure-relief device was not located on the downstream side of the backflow and flashback protection devices:
OPTION 3 3 29 CFR 1910.253(e)(3)(ii)(4): The vent from the pressure-
OPTION 4 4 29 CFR 1910.253(e)(3)(ii)(4): Where low points unavoidable, drip pots with drains closed with screw plugs or caps were not installed at the low points:
OPTION 5 5 29 CFR 1910.253(e)(3)(ii)(4): The vent terminus from the pressure-relief device endangered personnel and property through the gas discharge:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 6 1 29 CFR 1910.253(e)(3)(ii)(4): The vent terminus through which gas was discharged from the pressure-relief device was not located away from ignition sources:
OPTION 7 2 29 CFR 1910.253(e)(3)(ii)(4): The vent terminus through which gas was discharged from the pressure-relief device was not terminated in a hood or bend:
3 29 CFR 1910.253(e)(3)(iii): Where pipeline protective equipment incorporated a liquid, the liquid level was not maintained:
4 29 CFR 1910.253(e)(3)(iv): Fuel gas for use with equipment not requiring oxygen was not withdrawn upstream of the piping protective devices:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(e)(4)(i): A check valve, pressure regulator, hydraulic seal, or combination of these devices was not provided at each station outlet, including those on portable headers, to prevent backflow, as shown in Figures Q-1, Q-2, and Q-3 and designated as SF and SO:
OPTION 1 3 29 CFR 1910.253(e)(4)(iii): A shutoff valve (designated VF and VO) was not installed at each station outlet:
OPTION 2 4 29 CFR 1910.253(e)(4)(iii): A shutoff valve (designated VF and VO) installed at each station outlet was not located on the upstream side of other station outlet equipment:
5 29 CFR 1910.253(e)(4)(iv): When the station outlet was equipped with a detachable regulator, the outlet did not terminate in a union connection that complied with the Regulator Connection Standards, 1958, Compressed Gas Association:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(e)(4)(v): When the station outlet was connected directly to a hose, the outlet did not terminate in a union connection complying with the Standard Hose Connection Specifications, 1957, Compressed Gas Association:
2 29 CFR 1910.253(e)(4)(vii): Station outlets were not equipped with a detachable outlet seal cap secured in place:
3 29 CFR 1910.253(e)(5)(i): Hose for oxy-fuel gas service did not comply with the Specification for Rubber Welding Hose, 1958, Compressed Gas Association and Rubber Manufacturers Association:
4 29 CFR 1910.253(e)(5)(ii): When parallel lengths of oxygen and acetylene hose were taped together for convenience and to prevent tangling, more than 4 inches (10.2 cm) out of 12 inches (30.5 cm) was covered by tape:
5 29 CFR 1910.253(e)(5)(iii): Hose connections did not comply with the Standard Hose Connection Specifications, 1957, Compressed Gas Association:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(e)(5)(iv): Hose connections were not clamped or otherwise securely fastened in a manner that would withstand, without leakage, twice the pressure to which they would normally be subjected in service, but in no case less than a pressure of 300 psi (2.04 MPa):
OPTION 2 2 29 CFR 1910.253(e)(5)(iv): Oil-free air or an oil-free inert gas was not used for testing hose connections:
3 29 CFR 1910.253(e)(5)(v): Hose showing leaks, burns, worn places, or other defects rendering it unfit for service were not repaired or replaced:
OPTION 1 4 29 CFR 1910.253(e)(6)(i): Pressure-reducing regulators were not used for the gas and pressure for which they were intended:
OPTION 2 5 29 CFR 1910.253(e)(6)(i): Pressure-reducing regulator inlet connections did not comply with Regulator Connection Standards, 1958, Compressed Gas Association:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(e)(6)(ii): When regulators or parts of regulators, including gages, needed repair, the work was not performed by skilled mechanics who had been properly instructed:
2 29 CFR 1910.253(e)(6)(iii): Gages on oxygen regulators were not marked "USE NO OIL":
3 29 CFR 1910.253(e)(6)(iv): Union nuts and connections on regulators were not inspected before use to detect faulty seats which could have caused leakage of gas when the regulators were attached to the cylinder valves:
OPTION 1 4 29 CFR 1910.253(f)(1)(i): Acetylene generators were not of approved construction:
OPTION 2 5 29 CFR 1910.253(f)(1)(i): Acetylene generators were not plainly marked with the maximum rate of acetylene in cubic feet per hour for which they were designed; the weight and size of carbide necessary for a single charge; the manufacturer's name and address; and the name or number of the type of generator:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(f)(1)(ii): Carbide was not of the size marked on the acetylene generator nameplate:
OPTION 1 2 29 CFR 1910.253(f)(2)(i): The total hourly output of an acetylene generator exceeded the rate for which it was approved and marked:
OPTION 2 3 29 CFR 1910.253(f)(2)(i): When not specifically approved for higher ratings, carbide-feed generators were not rated at 1 cubic foot (0.028 m3) per hour per pound of carbide required for a single complete charge:
OPTION 1 4 29 CFR 1910.253(f)(2)(ii): Relief valves were not regularly operated to insure proper functioning:
OPTION 2 5 29 CFR 1910.253(f)(2)(ii): Relief valves for generating chambers were not set to open at a pressure not in excess of 15 psig (103 kPa gauge pressure):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 3 1 29 CFR 1910.253(f)(2)(ii): Relief valves for hydraulic back pressure valves were not set to open at a pressure not in excess of 20 psig (137 kPa gauge pressure):
2 29 CFR 1910.253(f)(2)(iii): Nonautomatic generators were used for generating acetylene at pressures exceeding 1 psig (7 kPa gauge pressure) and all water overflows were not visible:
OPTION 1 3 29 CFR 1910.253(f)(3): The space around the generator was not ample for free, unobstructed operation and maintenance:
OPTION 2 4 29 CFR 1910.253(f)(3): The space around the generator was not ample to permit ready adjustment and charging:
OPTION 1 5 29 CFR 1910.253(f)(4)(i)(A): The foundation was not so arranged that the generator would be level and so that no excessive strain would be placed on the generator or its connections:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(f)(4)(i)(A): Stationary acetylene generators were not grounded:
OPTION 1 2 29 CFR 1910.253(f)(4)(i)(B): Generators were not placed where the water will freeze:
OPTION 2 3 29 CFR 1910.253(f)(4)(i)(B): The use of common salt (sodium chloride) or other corrosive chemicals in generator water for protection against freezing was permitted:
4 29 CFR 1910.253(f)(4)(i)(C): Sources of ignition were not prohibited in outside generator houses or inside generator rooms when generators were not prepared in accordance with 29 CFR 1910.253(f)(7)(v):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(f)(4)(i)(D): Water was supplied through a continuous connection to the generator when the generator was not provided with an adequate open overflow or automatic water shutoff which would effectively prevent overfilling of the generator:
OPTION 2 2 29 CFR 1910.253(f)(4)(i)(D): Where a noncontinuous connection was used to supply water to the generator, the supply line did not terminate at a point not less than 2 inches (5 cm) above the regularly provided opening for filling so that the water could be observed as it entered the generator:
OPTION 1 3 29 CFR 1910.253(f)(4)(i)(E): When not otherwise specifically approved, generators were fitted with continuous drain connections leading to sewers:
OPTION 2 4 29 CFR 1910.253(f)(4)(i)(E): When not otherwise specifically approved, generators not fitted with continuous drain connections were not discharged through an open connection into a suitably vented outdoor receptacle or residue pit which would have such connections:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(f)(4)(ii)(A): Each generator was not provided with a vent pipe:
2 29 CFR 1910.253(f)(4)(ii)(B): The escape or relief pipe was not rigidly installed without traps and so that condensation would drain back to the generator:
OPTION 1 3 29 CFR 1910.253(f)(4)(ii)(C): The escape or relief pipe was not carried full size to a suitable point outside the building:
OPTION 2 4 29 CFR 1910.253(f)(4)(ii)(C): The escape or relief pipe did not terminate in a hood or bend located at least 12 feet (3.7 m) above the ground:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 3 1 29 CFR 1910.253(f)(4)(ii)(C): Generating chamber relief pipes were inter-connected and were not separately led to the outside air:
OPTION 4 2 29 CFR 1910.253(f)(4)(ii)(C): The hood or bend was not so constructed that it would not be obstructed by rain, snow, ice, insects, or birds:
OPTION 5 3 29 CFR 1910.253(f)(4)(ii)(C): The outlet from the hood or bend was not at least 3 feet (0.9 m) from combustible construction:
OPTION 1 4 29 CFR 1910.253(f)(4)(iii)(A): Gas holders were not constructed on the gasometer principle, the bell being suitably guided:
OPTION 2 5 29 CFR 1910.253(f)(4)(iii)(A): The gas holder bell did not move freely without tendeacy to bind and did not have a clearance of at least 2 inches (5 cm) from the shell:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(f)(4)(iii)(B): To prevent collapse of the gas bell or infiltration of air due to a vacuum caused by the compressor or booster pump or cooling of the gas, a compressor or booster cutoff was not provided at a point 12 inches (0.3 m) or more above the landing point of the bell:
OPTION 2 2 29 CFR 1910.253(f)(4)(iii)(B): When the gas holder located indoors, the room was not ventilated in accordance with 29 CFR 1910.253(f)(6)(ii):
OPTION 3 3 29 CFR 1910.253(f)(4)(iii)(B): When the gas holder was located indoors, the room was not heated in accordance with 29 CFR 1910.253(f)(6)(iii):
OPTION 4 4 29 CFR 1910.253(f)(4)(iii)(B): When the gas holder was located indoors, the room was not lighted in accordance with 29 CFR 1910.253(f)(6)(iv):
5 29 CFR 1910.253(f)(4)(iii)(C): When the gas holder was not located within a heated building, gas holder seals were not protected against freezing:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(f)(4)(iii)(D): Means was not provided to stop the generator-feeding mechanism before the gas holder reached the upper limit of its travel:
2 29 CFR 1910.253(f)(4)(iii)(E): When the gas holder was connected to only one generator, the gas capacity of the holder was less than one-third of the hourly rating of the generator:
OPTION 1 3 29 CFR 1910.253(f)(4)(iii)(F): When acetylene was used from the gas holder without increase in pressure at some points but with increase in pressure by a compressor or booster pump at other points, approved piping protective devices were not installed in each supply line:
OPTION 2 4 29 CFR 1910.253(f)(4)(iii)(F): The low-pressure protective devices was not located between the gas holder and the shop piping:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 3 1 29 CFR 1910.253(f)(4)(iii)(F): The medium-pressure protective devices was not located between the compressor or booster pump and the shop piping:
2 29 CFR 1910.253(f)(4)(iv)(A): The compressor or booster system not of an approved type:
3 29 CFR 1910.253(f)(4)(iv)(B): Wiring and electrical equipment in compressor or booster rooms or enclosures did not conform to the provisions of 29 CFR 1910.324 for Class I, Division 2 locations:
4 29 CFR 1910.253(f)(4)(iv)(C): Compressors and booster pump equipment were not located in well-ventilated areas away from open flames, electrical or mechanical sparks, or other ignition sources:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(f)(4)(iv)(D): Compressors or booster pumps were not provided with pressure relief valves which would relieve pressure exceeding 15 psig (103 kPa gauge pressure) to a safe outdoor location as provided in 29 CFR 1910.253 (f)(4)(ii), or by returning the gas to the inlet side or to the gas supply source:
2 29 CFR 1910.253(f)(4)(iv)(E): Compressor or booster pump discharge outlets were not provided with approved protective equipment:
3 29 CFR 1910.253(f)(5)(i)(A): All portable generators were not of a type approved for portable use:
4 29 CFR 1910.253(f)(5)(i)(B): Portable generators were used within 10 feet (3 m) of combustible material other than the floor:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(f)(5)(i)(C): Portable generators were used in rooms of total volume less than 35 times the total gas- generating capacity per charge of all generators in the room:
OPTION 2 2 29 CFR 1910.253(f)(5)(i)(C): Generators were permitted to be used in rooms having a ceiling height of less than 10 feet (3 m):
OPTION 1 3 29 CFR 1910.253(f)(5)(i)(D): Portable generators were not protected against freezing:
OPTION 2 4 29 CFR 1910.253(f)(5)(i)(D): Portable generators were being protected against freezing with the use of salt or other corrosive chemical:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(f)(5)(ii)(A): Portable generators were not cleaned and recharged and the air mixture blown off outside buildings:
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS)
2 29 CFR 1910.253(f)(5)(ii)(B): When charged with carbide, portable generators were being moved by crane or derrick:
OPTION 1 3 29 CFR 1910.253(f)(5)(ii)(C): When not in use, portable generators containing carbide or not thoroughly purged of acetylene were stored in rooms in which open flames were used:
OPTION 2 4 29 CFR 1910.253(f)(5)(ii)(C): When not in use, portable generators containing carbide or not thoroughly purged of acetylene were stored in rooms which were not well ventilated:
OPTION 1 5 29 CFR 1910.253(f)(5)(ii)(D): When portable acetylene generators were transported and operated on vehicles, they were not securely anchored to the vehicles:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(f)(5)(ii)(D): When portable acetylene generators were transported by truck, the motor was not turned off during charging, cleaning, and generating periods:
(a) (LOCATION) (IDENTIFY SPECIFIC OPERATIONS AND/OR
CONDITIONS)
2 29 CFR 1910.253(f)(5)(ii)(E): Portable generators were not located at a safe distance from the welding position so that they would not be exposed to sparks, slag, or misdirection of the torch flame or overheating from hot materials or processes:
3 29 CFR 1910.253(f)(6)(i)(A): Opening in an outside generator house was located within less than 5 feet (1.5 m) of an opening in another building:
4 29 CFR 1910.253(f)(6)(i)(B): Walls, floors, and roofs of outside generator houses were not of noncombustible construction:
OPTION 1 5 29 CFR 1910.253(f)(6)(i)(C): When a part of the generator house was used for the storage or manifolding of oxygen cylinders, the space being occupied was not separated from the generator or carbide storage section by partition walls continuous from floor to roof or ceiling, of the type of construction stated in 29 CFR 1910.253(f)(6)(i)(H):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(f)(6)(i)(C): When a part of the generator house was used for the storage or manifolding of oxygen cylinders, the space being occupied was not separated from the generator or carbide storage section by partition walls without openings:
OPTION 3 2 29 CFR 1910.253(f)(6)(i)(C): When a part of the generator house was used for the storage or manifolding of oxygen cylinders, the space being occupied was not separated from the generator or carbide storage section by partition walls without openings and joined to the floor, other walls and ceiling or roof in a manner to effect a permanent gas-tight joint:
3 29 CFR 1910.253(f)(6)(i)(D): Exit doors for outside generator houses and inside generator rooms were not located so as to be readily accessible in case of emergency:
OPTION 1 4 29 CFR 1910.253(f)(6)(i)(E): Explosion venting for outside generator houses and inside generator rooms were not provided in exterior walls or roofs:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(f)(6)(i)(E): The venting areas were not equal to not less than 1 square foot (0.09 m2) per 50 cubic feet (1.4 m3) of room volume:
2 29 CFR 1910.253(f)(6)(i)(F): The installation of acetylene generators within buildings was not restricted to buildings not exceeding one story in height:
3 29 CFR 1910.253(f)(6)(i)(G): Generators installed inside buildings were not enclosed in a separate room:
OPTION 1 4 29 CFR 1910.253(f)(6)(i)(H): The walls, partitions, floors and ceilings of inside generator rooms were not of noncombustible construction having a fire-resistance rating of at least 1 hour:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(f)(6)(i)(H): The walls or partitions of inside generator rooms were not continuous length from floor to ceiling:
OPTION 3 2 29 CFR 1910.253(f)(6)(i)(H): The walls or partitions of inside generator rooms continuous from floor to ceiling were not securely anchored:
OPTION 4 3 29 CFR 1910.253(f)(6)(i)(H): At least one wall of an inside generator room was not an exterior wall of the building:
OPTION 1 4 29 CFR 1910.253(f)(6)(i)(I): Openings from an inside generator room to other parts of the building were not protected by a swinging type, self-closing fire door for a Class B opening and having a rating of at least 1 hour:
OPTION 2 5 29 CFR 1910.253(f)(6)(i)(I): Windows in partitions were not wired glass and approved metal frames with fixed sash:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 3 1 29 CFR 1910.253(f)(6)(i)(I): Installation of swinging type, self-closing fire doors for a Class B opening, or windows in partitions of an inside generator room was not in accordance with the Standard for the Installation of Fire Doors and Windows, NFPA 80-1970:
2 29 CFR 1910.253(f)(6)(ii): Inside generator rooms or outside generator houses were not well ventilated with vents located at floor and ceiling levels:
OPTION 1 3 29 CFR 1910.253(f)(6)(iii): Heating for inside generator rooms or outside generator houses was not by steam, hot water, enclosed electrically heated elements or other indirect means:
OPTION 2 4 29 CFR 1910.253(f)(6)(iii): Heating by flames or fires was not prohibited in outside generator houses or inside generator rooms, or in any enclosure communicating with them:
OPTION 1 5 29 CFR 1910.253(f)(6)(iv)(A): Generator houses or rooms did not have natural light during daylight hours:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(f)(6)(iv)(A): Where artificial lighting was necessary in generator houses or rooms, lighting was not restricted to electric lamps installed in a fixed position:
OPTION 3 2 29 CFR 1910.253(f)(6)(iv)(A): Electric lamps installed in generator houses or generator rooms not specifically approved for use in atmospheres containing acetylene were not provided with enclosures of glass or other noncombustible material so designed and constructed as to prevent gas vapors from reaching the lamps or sockets and to resist breakage:
OPTION 4 3 29 CFR 1910.253(f)(6)(iv)(A): Rigid conduit with threaded connections was not used electric lamps were installed in generator houses or generator rooms containing atmospheres of acetylene:
4 29 CFR 1910.253(f)(6)(iv)(B): Lamps installed outside of wired glass panels not set in gas-tight frames in the exterior walls or roof of the generator house or room were not acceptable:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(f)(6)(v): Electric switches, telephones, and all other electrical apparatus which could cause a spark, not specifically approved for use inside acetylene generator rooms, were not located outside the generator house or in a room or space separated from the generator rooms by a gas- tight partition:
OPTION 2 2 29 CFR 1910.253(f)(6)(v): Electrical equipment in the generator house or room did not conform to the provisions of Subpart S of this part for Class I, Division 2 locations where the generator system was not designed so that no carbide fill opening or other part of the generator was open to the generator house or room during the operation of the generator, and so that residue was carried in closed piping from the residue discharge valve to a point outside the generator house or room:
3 29 CFR 1910.253(f)(7)(i): Unauthorized persons were permitted in outside generator house or inside generator rooms:
4 29 CFR 1910.253(f)(7)(i)(A): Operating instructions were not posted in a conspicuous place near the generator or kept in a suitable place available for ready reference:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(f)(7)(i)(B): When recharging generators the order of operations specified in the instructions supplied by the manufacturer was not followed:
2 29 CFR 1910.253(f)(7)(i)(C): In the case of batch-type generators, when the charge of carbide was exhausted and before additional carbide was added, the generating chamber was not always flushed out with water, renewing the water supply in accordance with the instruction card furnished by the manufacturer:
OPTION 1 3 29 CFR 1910.253(f)(7)(i)(D): The water-carbide residue mixture drained from the generator discharged into the sewer pipes:
OPTION 2 4 29 CFR 1910.253(f)(7)(i)(D): The water-carbide residue mixture drained from the generator stored in areas near open flames:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(f)(7)(ii): The carbide added each time the generator was recharged was not sufficient to refill the space provided for carbide without ramming the charge:
OPTION 2 2 29 CFR 1910.253(f)(7)(ii): Steel and other ferrous tools were used in distributing the charge while recharging the generator:
3 29 CFR 1910.253(f)(7)(iii): Generator water chambers were not kept filled to proper level at all times:
4 29 CFR 1910.253(f)(7)(iv): Whenever repairs were to be made or the generator was to be charged or carbide was to be removed, the water chamber was not filled to the proper level:
OPTION 1 5 29 CFR 1910.253(f)(7)(v): Previous to making repairs involving welding, soldering, or other hot work or other operations which produce a source of ignition, the carbide charge and feed mechanism were not completely removed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(f)(7)(v): Previous to making repairs involving welding, soldering, or other hot work or other operations which produce a source of ignition, all acetylene was not expelled by completely flooding the generator shell with water:
OPTION 3 2 29 CFR 1910.253(f)(7)(v): The generator was not disconnected from the piping system previous to making repairs involving welding, soldering, or other hot work or other operations which produce a source of ignition:
OPTION 4 3 29 CFR 1910.253(f)(7)(v): Previous to making repairs involving welding, soldering, or other hot work or other operations which produce a source of ignition, the generator was not kept filled with water, if possible, or positioned to hold as much water as possible:
4 29 CFR 1910.253(f)(7)(vi): Hot repairs were made in a room where other generators and piping had not been purged of acetylene:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(g)(1)(i): Calcium carbide was not contained in metal packages of sufficient strength to prevent rupture:
OPTION 2 2 29 CFR 1910.253(g)(1)(i): Calcium carbide metal packages were not provided with a screw top or equivalent:
OPTION 3 3 29 CFR 1910.253(g)(1)(i): Calcium carbide metal packages were not constructed water- and be air-tight:
OPTION 4 4 29 CFR 1910.253(g)(1)(i): Solder was used in such a manner that the calcium carbide metal package would fail if exposed to fire:
5 29 CFR 1910.253(g)(1)(ii): Packages containing calcium carbide were not conspicuously marked "Calcium Carbide - Dangerous If Not Kept Dry" or with equivalent warning:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.253(g)(1)(iv): Sprinkler systems were installed in carbide storage rooms:
OPTION 1 2 29 CFR 1910.253(g)(2)(i)(B): Packages of calcium carbide in storage were not kept sealed, except for one of each size:
OPTION 2 3 29 CFR 1910.253(g)(2)(i)(B): Seals were broken when there was carbide in excess of 1 pound (0.5 kg) in other unsealed packages of the same size of carbide in the room:
4 29 CFR 1910.253(g)(2)(ii)(A): Calcium carbide exceeding 600 pounds (272.2 kg) but not exceeding 5,000 pounds (2,268 kg) was not stored in accordance with 29 CFR 1910.253(g)(2)(iii):
5 29 CFR 1910.253(g)(2)(ii)(B): Calcium carbide exceeding 600 pounds (272.2 kg) but not exceeding 5,000 pounds (2,268 kg) was not stored in an inside generator room or outside generator house:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.253(g)(2)(ii)(C): Calcium carbide exceeding 600 pounds (272.2 kg) but not exceeding 5,000 pounds (2,268 kg) was not stored in a separate room in a one-story building which could contain other occupancies, but without cellar or basement beneath the carbide storage section:
OPTION 2 2 29 CFR 1910.253(g)(2)(ii)(C): Calcium carbide exceeding 600 pounds (272.2 kg) but not exceeding 5,000 pounds (2,268 kg) was not stored in a separate room in a one-story building which could contain other occupancies, were not constructed in accordance with 29 CFR 1910.253(f)(6)(i)(H) and 29 CFR 910.253 (f)(6)(i)(I) and ventilated in accordance with 29 CFR 1910.253 (f)(6)(ii):
OPTION 3 3 29 CFR 1910.253(g)(2)(ii)(C): Calcium carbide exceeding 600 pounds (272.2 kg) but not exceeding 5,000 pounds (2,268 kg)was stored in a room that was used for other purposes:
OPTION 1 4 29 CFR 1910.(g)(2)(iii): Calcium carbide in excess of 5,000 pounds (2,268 kg) was not stored in one-story buildings without cellar or basement, and used for no other purpose, or in outside generator houses:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(g)(2)(iii): Calcium carbide storage building of noncombustible construction adjoined to other one-story buildings was not separated therefrom by unpierced firewalls:
OPTION 3 2 29 CFR 1910.253(g)(2)(iii): Calcium carbide storage building of noncombustible construction detached less than 10 feet (3 m) from one-story building or buildings had openings in the mutually exposing sides of such buildings within 10 ft (3 m):
OPTION 4 3 29 CFR 1910.253(g)(2)(iii): The storage building was of combustible construction, and was not at least 20 feet (6.1 m) from any other one- or two-story building, and at least 30 feet (9.1 m) from any other building exceeding two stories:
OPTION 1 4 29 CFR 1910.253(g)(3)(ii): Carbide containers to be stored outdoors were not examined to make sure that they were in good condition:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.253(g)(3)(ii): Periodic reexaminations were not made for rusting or other damage to a container that might affect its water and air tightness when stored outdoors:
2 29 CFR 1910.253(g)(3)(iii): The bottom tier of each row of carbide containers outdoors was not placed on wooden planking or equivalent, so that the containers would not come in contact with the ground or ground water:
3 29 CFR 1910.253(g)(3)(iv): Containers of carbide which had been in storage the longest were not used first:
4 29 CFR 1910.254(a)(1): Welding equipment was not chosen for safe application to the work to be done as specified in 29 CFR 1910.254(b):
5 29 CFR 1910.254(a)(2): Welding equipment was not installed safely as specified by 29 CFR 1910.254(c):
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.254(a)(3): Workmen designated to operate arc welding equipment had not been properly instructed and qualified to operate such equipment as specified in 29 CFR 1910.254(d):
OPTION 1 2 29 CFR 1910.254(b)(2)(i): Standard machines for arc welding service were not designed and constructed to carry their rated load with rated temperature rises where the temperature of the cooling air did not exceed 40 oC (104 oF) and where the altitude did not exceed 3,300 feet (1,005.8 m):
OPTION 2 3 29 CFR 1910.254(b)(2)(i): Standard machines for arc welding service were not designed and constructed to carry their rated load with rated temperature rises where the temperature of the cooling air was suitable for operations in atmospheres containing gases, dust, and light rays produced by the welding arc:
4 29 CFR 1910.254(b)(2)(ii): Machines were not especially designed to safely meet the requirements of the service when an unusual service condition could exist:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.254(b)(3)(i)(A): Manual arc welding and cutting alternating-current machines voltage exceeded the 80 volts limitation while work was being performed:
2 29 CFR 1910.254(b)(3)(i)(B): Automatic (machine or mechanized) arc welding and cutting alternating-current voltage exceeded the 100 volts limitation while work was being performed:
3 29 CFR 1910.254(b)(3)(ii)(A): Manual arc welding and cutting direct-current machines exceeded the 100 volts limitation while work was being performed:
4 29 CFR 1910.254(b)(3)(ii)(B): Automatic (machine or mechanized) arc welding and cutting direct-current voltage exceeded the 100 volts limitation while work was being performed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.254(b)(3)(iii): When special welding and cutting processes required values of open circuit voltages higher than the allowable limits, means was not provided to prevent the operator from making accidental contact with the high voltage by adequate insulation or other means:
OPTION 1 2 29 CFR 1910.254(b)(4)(i): A controller integrally mounted in an electric motor driven welder did not have capacity for carrying rated motor current:
OPTION 2 3 29 CFR 1910.254(b)(4)(i): A controller integrally mounted in an electric motor driven welder was not capable of making and interrupting stalled rotor current of the motor:
NOTE: A controller integrating mounted in an electric
motor driven welder may serve as the running
overcurrent device if provided with the number
of overcurrent units as specified by Subpart S,
29 CFR 1910.
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.254(b)(4)(ii): On all types of arc welding machines, control apparatus was not enclosed:
2 29 CFR 1910.254(b)(4)(iii): Input power terminals, tap change devices and live metal parts connected to input circuits were not completely enclosed and accessible only by means of tools:
OPTION 1 3 29 CFR 1910.254(b)(4)(iv): When a welding lead terminal which was intended to be used exclusively for connection to the work was connected to the grounded enclosure, it was not done by a conductor at least two AWG sizes smaller than the grounding conductor:
OPTION 2 4 29 CFR 1910.254(b)(4)(iv): When a welding lead terminal which was intended to be used exclusively for connection to the work was connected to the grounded enclosure, the terminal was not marked to indicate it was grounded:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.254(b)(4)(v): Connections for portable control devices such as push buttons to be carried by the operator were connected to an a.c. circuit of higher than 120 volts:
OPTION 2 2 29 CFR 1910.254(b)(4)(v): Exposed metal parts of portable control devices operating on circuits above 50 volts were not grounded by a grounding conductor in the control cable:
3 29 CFR 1910.254(b)(4)(vi): Auto transformers or a.c. reactors were used to draw welding current directly from an a.c. power source having a voltage in excess of 80 volts:
4 29 CFR 1910.254(c)(1): Installation of arc welding equipment including power supply was not in accordance with the requirements of Subpart S, 29 CFR 1910:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.254(c)(2)(i): The frame or case of the welding machine was not grounded under the conditions and according to the methods prescribed in Subpart S, 29 CFR 1910:
OPTION 1 2 29 CFR 1910.254(c)(2)(ii): Conduits containing electrical conductors were used for completing a work-lead circuit:
OPTION 2 3 29 CFR 1910.254(c)(2)(ii): Pipelines were used as a permanent part of a work-lead circuit:
4 29 CFR 1910.254(c)(2)(iii): Chains, wire ropes, cranes, hoists, and elevators were used to carry welding current:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.254(c)(2)(iv): Where a structure, conveyor, or fixture was regularly employed as a welding current return circuit, joints were not bonded or provided with adequate current collecting devices:
2 29 CFR 1910.254(c)(2)(v): All ground connections were not checked to determine that they were mechanically strong and electrically adequate for the required welding current:
OPTION 1 3 29 CFR 1910.254(c)(3)(i): A disconnecting switch or controller was not provided at or near each welding machine which was not equipped with such a switch or controller mounted as an integral part of the machine:
OPTION 2 4 29 CFR 1910.254(c)(3)(i): A disconnecting switch provided at or near each welding machine was not in accordance with subpart S, 29 CFR 1910:
OPTION 3 5 29 CFR 1910.254(c)(3)(i): A disconnecting switch or controller was not provided with overcurrent protection as specified in subpart S, 29 CFR 1910:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 4 1 29 CFR 1910.254(c)(3)(i): A disconnect switch with overload protection or equivalent disconnect and protection means, permitted by subpart S of 29 CFR 1910, was not provided for each outlet intended for connection to a portable welding machine:
2 29 CFR 1910.254(c)(3)(ii): For individual welding machines, the rated current-carrying capacity of the supply conductors was less than the rated primary current of the welding machines:
3 29 CFR 1910.254(c)(3)(iii): When using groups of welding machines, the conductor rating was not determined in each case according to the machine loading based on the use to be made of each welding machine and the allowance permissible in the event that all the welding machines supplied by the conductors would not be used at the same time:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.254(c)(3)(iv)(A): All d.c. machines used for welding were not connected with the same polarity:
2 29 CFR 1910.254(c)(3)(iv)(B): All a.c. machines used for welding were not connected to the same phase of the supply circuit and with the same instantaneous polarity:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.254(d)(1): Workmen assigned to operate or maintain arc welding equipment were not acquainted with the requirements of 29 CFR 1910.254(d) and 29 CFR 1910.252(a), (b), and (c):
OPTION 1 2 29 CFR 1910.254(d)(2): Before starting welding operations all connections to the machine were not checked to make certain they were properly made:
OPTION 2 3 29 CFR 1910.254(d)(2): Before starting welding operations the work lead was not firmly attached to the work:
OPTION 3 4 29 CFR 1910.254(d)(2): Before starting welding operations the magnetic work clamps were not freed from adherent metal particles of spatter on contact surfaces:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.254(d)(3): Grounding of the welding machine frame was not checked:
OPTION 2 2 29 CFR 1910.254(d)(3): Special attention was not given to safety ground connections of portable welding machines:
3 29 CFR 1910.254(d)(4): The employer did not ensure that there were no leaks of cooling water, shielding gas or engine fuel present before the welding operation was started:
4 29 CFR 1910.254(d)(5): Before starting, it had not been determined that proper switching equipment for shutting down the machine was provided:
5 29 CFR 1910.254(d)(6): Printed rules and instructions covering operations of equipment supplied by the manufacturers were not strictly followed:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910,254(d)(7)(: Electrode holders when not in use were not so placed that they could not make electrical contact with persons, conducting objects, fuel or compressed gas tanks:
2 29 CFR 1910.254(d)(8): Welding cables with splices within 10 feet (3 m) of the holder were used:
OPTION 1 3 29 CFR 1910.254(d)(9)(i): The supervisor, when informed by the operator of an equipment defect or safety hazard, did not have the use of the equipment discontinued until its safety had been assured:
OPTION 2 4 29 CFR 1910.254(d)(9)(i): The supervisor, when informed by the operator of an equipment defect or safety hazard, did not have repairs made only by qualified personnel:
5 29 CFR 1910.254(d)(9)(ii): Machines which had become wet were not thoroughly dried and tested before being used:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.254(d)(9)(iii): Cables with damaged insulation or exposed bare conductors were not replace:
OPTION 2 2 29 CFR 1910.254(d)(9)(iii): Joining lengths of work and electrode cables were not done by the use of connecting means specifically intended for the purpose:
OPTION 3 3 29 CFR 1910.254(d)(9)(iii): Joining lengths of work and electrode cables by the use of connecting means did not have insulation adequate for the service conditions:
OPTION 1 4 29 CFR 1910.255(a)(1): All welding equipment was not installed by a qualified electrician in conformance with subpart S of 29 CFR 1910:
OPTION 2 5 29 CFR 1910.255(a)(1): There was no safety-type disconnecting switch or a circuit breaker or circuit interrupter to open each power circuit to the welding machine, conveniently located at or near the machine, so that the power could be shut off when the machine or its controls needed to be serviced:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.255(a)(2): Ignitron tubes used in resistance welding equipment were not equipped with a thermal protection switch:
2 29 CFR 1910.255(a)(3): Workmen designated to operate resistance welding equipment had not been properly instructed and judged competent to operate such equipment:
3 29 CFR 1910.255(a)(4): Controls of all automatic or air and hydraulic clamps were not arranged or guarded to prevent the operator from accidentally activating them:
4 29 CFR 1910.255(b)(1): All external welding initiating control circuits were not operated on low voltage, not over 120 volts for the safety of the operators:
OPTION 1 5 29 CFR 1910.255(b)(2): Stored energy or capacitor discharge type of resistance welding equipment and control panels involving high voltage (over 550 volts) were not suitably insulated and protected by complete enclosures:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.255(b)(2): Stored energy or capacitor discharge type of resistance welding equipment and control panels involving high voltage (over 550 volts) were protected by enclosures with doors that did not have suitable interlocks and contacts wired into the control circuit (similar to elevator interlocks):
OPTION 3 2 29 CFR 1910.255(b)(2): Stored energy or capacitor discharge type of resistance welding equipment and control panels involving high voltage (over 550 volts) were protected by enclosures with doors that did not have interlocks and contacts so designed as to effectively interrupt power and short circuit all capacitors when the door or panel was opened:
OPTION 4 3 29 CFR 1910.255(b)(2): Stored energy or capacitor discharge type of resistance welding equipment and control panels involving high voltage (over 550 volts) were not provided with a manually operated switch or suitable positive device, in addition to the mechanical interlocks or contacts, as an added safety measure assuring absolute discharge of all capacitors:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.255(b)(3): All doors and access panels of all resistance welding machines and control panels were not kept locked and interlocked to prevent access, by unauthorized persons, to live portions of the equipment:
OPTION 1 2 29 CFR 1910.255(b)(4): All press welding machine operations, where there was a possibility of the operator's fingers being under the point of operation, were not effectively guarded by use of adevice such as an electronic eye safety circuit, two hand controls or protection similar to that prescribed for punch press operation in 29 CFR 1910.217:
OPTION 2 3 29 CFR 1910.255(b)(4): All chains, gears, operating bus linkage, and belts were not protected by adequate guards, in accordance with 29 CFR 1910.219:
OPTION 1 4 29 CFR 1910.255(b)(5): The hazard of flying sparks was not, wherever practical, eliminated by installing a shield guard of safety glass or suitable fire-resistant plastic at the point of operation:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.255(b)(5): Additional shields or curtains were not installed as necessary to protect passing persons from flying sparks:
2 29 CFR 1910.255(b)(6): All foot switches were not guarded to prevent accidental operation of the machine:
3 29 CFR 1910.255(b)(7): Two or more safety emergency stop buttons were not provided on all special multispot welding machines, including 2-post and 4-post weld presses.
4 29 CFR 1910.255(b)(8): On large machines, four safety pins with plugs and receptacles (one in each corner) were not provided so that when safety pins were removed and inserted in the ram or platen, the press would become inoperative:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.255(b)(9): Where technically practical, the secondary of all welding transformers used in multispot, projection and seam welding machines were not grounded:
OPTION 2 2 29 CFR 1910.255(b)(9): Safety disconnect was not arranged to open both sides of the line when welding current was not present:
3 29 CFR 1910.255(c)(1): All portable welding guns did not have suitable counterbalanced devices for supporting the guns, including cables:
OPTION 1 4 29 CFR 1910.255(c)(2): All portable welding guns, transformers and related equipment that was suspended from overhead structures, eye beams, trolleys, etc., were not equipped with safety chains or cables:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 2 1 29 CFR 1910.255(c)(2): Safety chains or cables were not capable of supporting the total shock load in the event of failure of any component of the supporting system:
2 29 CFR 1910.255(c)(3): Each clevis was not capable of supporting the total shock load of the suspended equipment in the event of trolley failure:
OPTION 1 3 29 CFR 1910.255(c)(4): All initiating switches, including retraction and dual schedule switches, located on the portable welding gun were not equipped with suitable guards capable of preventing accidental initiation through contact with fixturing, operator's clothing, etc.:
OPTION 2 4 29 CFR 1910.255(c)(4): Initiating switch voltage exceeded 24 volts:
5 29 CFR 1910.255(c)(5): The movable holder, where it entered the gun frame, did not have sufficient clearance to prevent the shearing of fingers carelessly placed on the operating movable holder:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance 1 29 CFR 1910.255(c)(6): The secondary and case of all portable welding transformers were not grounded:
OPTION 1 2 29 CFR 1910,255(d)(1): Flash welding machines were not equipped with a hood to control flying flash:
OPTION 2 3 29 CFR 1910.255(d)(1): In cases of high production,where materials could contain a film of oil and where toxic and metal fumes were given off during flash welding, ventilation was not provided in accordance with 29 CFR 1910.252(c):
OPTION 1 4 29 CFR 1910.255(d)(2): For the protection of the operators of nearby equipment, fire-resistant curtains or suitable shields were not set up around the machine:
OPTION 2 5 29 CFR 1910.255(d)(2): For the protection of the operators of nearby equipment, fire-resistant curtains or suitable shields were set up around the machine in such a manner that the operators movements were hampered:
OSHA Instruction CPL 2.35 CH-17 June 17, 1991 Office of General Industry Compliance Assistance OPTION 1 1 29 CFR 1910.255(e): Periodic inspection was not made by qualified maintenance personnel, and a certification record was not maintained:
OPTION 2 2 29 CFR 1910.255(e): The certification record did not include the date of inspection, the signature of the person who performed the inspection and the serial number, or other identifier, for the equipment inspected:
OPTION 3 3 29 CFR 1910.255(e): The operator was not instructed to report any equipment defects to his supervisor:
OPTION 4 4 29 CFR 1910.255(e): When it was determined that equipment defects existed, use of the equipment was not discontinued until safety repairs had been completed:
OPTION 1 5 29 CFR 1910.261(c)(15)(iii): In-running nips between chain and sprockets on pulpwood conveyors(s) were not guarded:
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