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Chemicals Commonly Associated with Welding, Cutting, and Brazing
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The
following list identifies chemicals commonly associated with these operations.
Each chemical name links to the corresponding entry in the OSHA Chemical
Sampling Guide. For more specific information on sampling and analysis see
OSHA's
Sampling and Analysis Safety and Health Topics Page or refer to the appropriate
OSHA's
Sampling and Analytical Method. In this listing the term welding is meant to include cutting and brazing.
- Metals. The metals that may be present will depend on the material being worked on, and the makeup of welding rods, fluxes, etc. For this information see the appropriate Material Safety Data Sheets.
- Aluminum, ID-121, NIOSH 7300
[42 KB PDF,
9 pages]
- Antimony, ID-206, ID-125G
- Arsenic, ID-105, NIOSH 7900
[19 KB PDF,
3 pages] NIOSH 7300 [42 KB PDF,
9 pages]
- Beryllium, ID-206, NIOSH 7300
[42 PDF,
9 pages]
- Cadmium, ID-206, ID-189,
NIOSH 7300 [42 KB PDF,
9 pages]
- Chromium, ID-121, ID-125G,
NIOSH 7300 [42 KB PDF,
9 pages]
-
Chromium, hexavalent,
ID-215 (version 2), NIOSH 7600 [24 KB PDF,
4 pages]
-
Chromium, hexavalent,
W4001, NIOSH 7600 [24 KB PDF,
4 pages]
- Cobalt, ID-121, ID-125G, ID-213, NIOSH 7300
[42 KB PDF,
9 pages]
- Copper,ID-206, ID-125G, NIOSH 7300
[42 KB PDF,
9 pages]
- Iron, ID-121, ID-125G, NIOSH 7300
[42 KB PDF,
9 pages]
- Lead, ID-206, ID-125G, NIOSH 7300
[42 KB PDF,
9 pages]
- Manganese, ID-121, ID-125G, NIOSH 7300
[42 KB PDF,
9 pages]
- Molybdenum, ID-121, ID-125G, NIOSH 7300
[42 KB PDF,
9 pages]
- Nickel, ID-121, ID-125G, NIOSH 7300
[42 KB PDF,
9 pages]
- Silver, ID-121, ID-206, NIOSH 7300
[42 KB PDF,
9 pages]
- Tin, ID-121, ID-206
- Titanium, NIOSH 7300
[42 KB PDF,
9 pages]
- Vanadium, ID-125G, NIOSH 7300
[42 KB PDF,
9 pages]
- Zinc, ID-121, ID-125G, NIOSH 7300
[42 KB PDF,
9 pages]
- Other Chemicals. These are present in the fluxes used or may be produced by the welding operation.
- Carbon dioxide, ID-172
- Carbon monoxide, ID-210
- Fluoride, ID-110, NIOSH 7902
[24 KB PDF,
4 pages]
- Nitrogen dioxide, ID-182, NIOSH 6014
[30 KB PDF,
5 pages]
- Nitric oxide, ID-190, NIOSH 6014
[30 KB PDF,
5 pages]
- Ozone, ID-214
- Particulates, NIOSH 0500
[20 KB PDF,
3 pages]
- Decomposition products. These will vary depending on the presence of coatings that may be on or near the object being welded. Residues left by degreasing, usually chlorinated hydrocarbons, may form these compounds when heated.
- Acetaldehyde, OSHA 68, NIOSH 2539
[40 KB PDF,
10 pages]
- Acrolein, OSHA 52, NIOSH 2539
[40 KB PDF,
10 pages]
- Carbonyl fluoride, ID-110 (modified)
- Chloroacetic acid, NIOSH 2008
[23 KB PDF,
4 pages]
- Formaldehyde, OSHA 52, NIOSH 2541
[30 KB PDF,
5 pages] NIOSH 2539 [40 KB PDF,
10 pages]
- Hydrogen chloride, ID-174SG, NIOSH 7903
[32 KB PDF,
6 pages]
- Hydrogen fluoride, ID-110, NIOSH 7903
[32 KB PDF,
6 pages]
- Perfluoroisobutylene,
- Phosgene, OSHA 61
- Phosphine, ID-180
Accessibility Assistance: Contact the OSHA Directorate of
Science, Technology and Medicine at 202-693-2300 for assistance accessing PDF materials.
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