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Safety and Health Topics: |
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| Acetylene |
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General Description
OSHA IMIS Code Number: 0070
Chemical Abstracts Service (CAS) Registry Number: 74-86-2
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: AO9600000
Department of Transportation Regulation Number (49 CFR 172.101): 1001 116
NIOSH Pocket Guide to Chemical Hazards, Acetylene: chemical description, physical properties, potentially hazardous incompatibilities, and more
Exposure Limits
OSHA Permissible Exposure Limit (PEL) for Construction Industry: 29 CFR 1926.55 Appendix A -- Simple Asphyxiants. The limiting factor is the available oxygen which shall be at least 19.5 percent and be within the requirements addressing explosion in part 1926.
OSHA Permissible Exposure Limit (PEL) for Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- Simple Asphyxiants. The limiting factor is the available oxygen which shall be at least 18 percent and be within the requirements addressing explosion in subpart B of part 1915.
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): Simple Asphyxiant
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2500 ppm, 2662 mg/m3 Ceiling
Health Factors
NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): Not determined
Potential symptoms: CNS, cardiac and respiratory symptoms related to oxygen deficiency: Headache, dizziness, reduced visual acuity, poor judgment, memory and coordination; weakness, unconsciousness; rapid pulse and respiration, cyanosis; frostbite from contact with liquid form
Health Effects: Explosive, Flammable, Safety-No adverse effects encountered when Good Housekeeping Practices are followed (HE18); Asphyxiation (HE17)
Affected organs: CNS, respiratory system
Date Last Revised: 02/12/2003
Literature Basis:
- NIOSH Pocket Guide to Chemical Hazards, Acetylene
Monitoring Methods used by OSHA
On-Site Sampling Techniques/Methods:
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device: Detector Tube
manufacturer: Dräger
model/type: Hydrocarbons 0.1%/b, order no. CH 26101
sampling information: consult manufacturer
upper measurement limit: consult manufacturer
detection limit: consult manufacturer
overall uncertainty: consult manufacturer
method reference: on-site air secondary (manufacturer)
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device: Detector Tube
manufacturer: Matheson-Kitagawa
model/type: 8014-101S
sampling information: follow manufacturer's instructions
upper measurement limit: 1000 ppm
detection limit: approximately 50 ppm
overall uncertainty: unknown
method reference: on-site air secondary (manufacturer)
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device: Detector Tube
manufacturer: Gastec
model/type: 171
sampling information: 0.5 to 2 strokes
upper measurement limit: 4.0%
detection limit: 0.02%
overall uncertainty: 24.6% for 0.1 to 0.5%, 16.4% for 0.5 to 2%
method reference: on-site air secondary (manufacturer)
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