Oxygen, Compressed

Hazard statements (CLP)

H270

Code

Statements

H270

May cause or intensify fire; oxidiser

SECTION 2: Hazards identification

Main Hazards All cylinders are transportable gas containers. Oxygen is non- flammable, but readily supports combustion. Never permit oil, grease or other readily combustible substance to come into contact with high concentrations of Oxygen. Adverse Health Effects Central nervous system toxicity including dizziness, convulsions and loss of consciousness can occur after only 2-3 hours of exposure to pure oxygen at 2 or more atmospheres. Retrosternal soreness, associated with coughing and breathing difficulties, made worse by smoking and exposure to cold air can occur after breathing pure oxygen at atmospheric pressure for several hours. Chemical Hazards Oxygen is non-flammable, but strongly supports combustion (including some materials which do not normally burn in air). Since dry Oxygen is non-corrosive, most materials of construction are suitable. Avoid all flammable materials. Biological Hazards No known effect. Vapour Inhalation Pure oxygen is a local irritant to mucous membranes and, with extended continued exposure, can be destructive to lung tissue.

Signal word

Danger

Precautionary statements

P220: Keep/Store away from clothing/…./ combustible materials (manufacturer/supplier or the competent authority to specify applicable ignition sources). P244: Keep reduction valves free from grease and oil. P370+P376 In case of fire stop leak if safe to do so P403: Store in well ventilated place.

Hazard statements

H270: May cause or intensify fire; oxidser.