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Safety and Health Topics: |
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| Ethyl Benzene |
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General Description
Synonyms: Phenylethane; Ethylbenzol
OSHA IMIS Code Number: 1080
Chemical Abstracts Service (CAS) Registry Number: 100-41-4
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: DA0700000
Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1175 129
NIOSH Pocket Guide to Chemical Hazards, Ethyl Benzene: chemical description, physical properties, potentially hazardous incompatibilities, and more
Exposure Limits
OSHA Permissible Exposure Limit (PEL) for General Industry: 29 CFR 1910.1000 Z-1 Table -- 100 ppm, 435 mg/m3 TWA
OSHA Permissible Exposure Limit (PEL) for Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- 100 ppm, 435 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 100 ppm TWA; 125 ppm STEL; Appendix A3 (Confirmed Animal Carcinogen with Unknown Relevance to Humans); BEI
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 100 ppm, 435 mg/m3 TWA; 125 ppm, 545 mg/m3 STEL
Health Factors
International Agency for Research on Cancer (IARC) carcinogenic classification: Group 2B, possibly carcinogenic to humans
NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 800 ppm
Potential symptoms: Eye, mucous membrane irritation; headaches; dermatitis; dizziness; narcosis; coma
Health Effects: Irritation-Eye, Nose, Throat, Skin---Moderate (HE15) Narcosis (HE8)
Affected organs: Eyes, upper respiratory system, skin, CNS
Note: Exposure occurs in combination with other solvents, such as those used in paint manufacturing or spray painting. Minimum anesthetic concentration in rats is 2180 ppm.
Date Last Revised: 05/19/2003
Literature Basis:
- (CNS symptoms)
Indulski, J.A., Sinczuk-Walczak, H, Szymczak, M. and Wesolowski, W.: Neurological and neurophysiological examinations of workers occupationally exposed to organic solvent mixtures used in the paint and varnish production. Int. J. Occup. Med. Environ. Health 9(3): 235-244, 1996.
- (Narcosis in rats)
Molnar, J., Pasky, K.A. and Naray, M.: Changes in the rat's motor behavior during 4-hr inhalation exposure to prenarcotic concentrations of benzene and its derivatives. Acta Physiol. Hung. 67(3): 349-354, 1986.
Monitoring Methods used by OSHA
Laboratory Sampling/Analytical Methods:
sampling media: Charcoal Tube (100/50 mg sections, 20/40 mesh)
analytical solvent: Carbon Disulfide
alternate solvent: (99:1) Carbon Disulfide/Dimethylformamide
maximum volume: 12 Liters maximum flow rate: 0.05 L/min (TWA)
maximum volume: 0.25 Liter maximum flow rate: 0.05 L/min (STEL)
current analytical method: Gas Chromatography; GC/FID
method reference: OSHA Manual of Analytical Methods (OSHA 1002)
method classification: Fully Validated
sampling media: Diffusive Sampler (SKC 575-002 Passive Sampler)
sampling time: 5 to 240 Minutes (TWA)
analytical solvent: Carbon Disulfide
current analytical method: Gas Chromatography; GC/FID
method reference: OSHA Manual of Analytical Methods (OSHA 1002)
method classification: Fully Validated
On-Site Sampling Techniques/Methods:
device: Detector Tube
manufacturer: AUER/MSA
model/type: Tol-5, MSA P/N 803947, AUER P/N 5085-828
sampling information: follow manufacturer’s instructions
upper measurement limit: 1800 ppm
detection limit: approx. 5 ppm
overall uncertainty: unknown
method reference: on-site air secondary (manufacturer)
device: Detector Tube
manufacturer: Dräger
model/type: Ethyl Benzene 30/a, order no. 67 28381
sampling information: 6 strokes
upper measurement limit: 400 ppm
detection limit: approx. 10 ppm
overall uncertainty: 16%
method reference: on-site air secondary (manufacturer)
device: Detector Tube
manufacturer: Gastec
model/type: 122L
sampling information: 2 strokes
upper measurement limit: 70 ppm
detection limit: approx. 1 ppm
overall uncertainty: unknown
method reference: on-site air secondary (manufacturer)
device: Detector Tube
manufacturer: Matheson-Kitagawa
model/type: 8014-179S
sampling information: follow manufacturer’s instructions
upper measurement limit: 500 ppm
detection limit: approx. 10 ppm
overall uncertainty: unknown
method reference: on-site air secondary (manufacturer)
* All Trademarks are the property of their respective owners.
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| Revised: 14 October 2003 |
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