Acetylene 0.0001% to 3.0% in Air

SECTION 2: Hazards identification

OSHA Emergency Overview: Odorless, colorless, nonflammable gas. Product contains sufficient oxygen to support respiration and combustion. Inhalation of high concentrations of acetylene may cause anesthetic effects. Rapidly expanding gas may cause frostbite. Contents under pressure. Use and store below 125°F (52°C).

Principle Routes of Exposure

Skin Contact Skin Absorption Eye Contact Inhalation Ingestion No Yes No

Potential health effects

Exposure Limits Irritant Sensitization No Teratogen Reproductive Hazard Mutagen No Synergistic Effects None reported NorLab, Acetylene 0.0001% to 1.25% in Air, Material Safety Data Sheet # 2870, Page 2 of 5 Continued _ | Carcinogenicity: NTP: No TARC: No

Medical Conditions Generally Aggravated by Exposure

None known. NFPA Hazard Codes HMIS Hazard Codes Ratings System Health: 0 Health: 0 0: No Hazard Flammability; 0 Flammability: 0 1: Slight Hazard Instability: 0

Physical hazards

3 2: Moderate Hazard 3: Serious Hazard 4: Severe Hazard ~

Hazard statements

based on CGA P-19-2004 CGA Recommended Hazard Ratings for Compressed Gases, Second Edition