Hydrogen in Air 0.0001% to 2%

SECTION 2: Hazards identification

Emergency Overview: Odorless, colorless, nonflammable gas. Product contains sufficient oxygen to support respiration and combustion. Contents under pressure. Use and store below 125OF (52OC).

Principle Routes of Exposure

Skin Contact Skin Absorption Eye Contact Inhalation Ingestion No

Potential health effects

Exposure Limits Irritant Sensitization No Teratogen Reproductive Hazard Mutagen No Synergistic Effects None reported Continued Carcinogenicity: NTP: No IARC: No OSHA: No Eye Effects: None anticipated. Contact with rapidly expanding gas near the point of release may cause frostbite. Skin Effects: Contact with rapidly expanding gas near the point of release may cause frostbite with redness, skin color change to gray or white, an d blistering. Ingestion Effects: None known. Ingestion is unlikely as product is a gas at room temperature. Inhalation Effects: Non-toxic-product contains sufficient oxygen to support respiration. Product does not contain sufficient hydrogen to act as a simple asphyxiant.

Medical Conditions Generally Aggravated by Exposure

None known.

Environmental effects

Not expected to be toxic to fish and wildlife. 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 codes based on recommendations contained in CGA P-19 2009, CGA Recommended Hazard Ratings for Compressed Gases.