S-2.1, r. 13 - Regulation respecting occupational health and safety

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83. Gaseous state flammable substances: Gaseous state flammable substances such as ammonia gas, hydrogen, acetylene and hydrogen sulfide shall never be stored with combustive substances or with oxidizing agents in a gaseous state such as chlorine, fluorine, nitrogen dioxide, nitrous oxides, nitrogen tetroxide, oxygen or compressed air.
O.C. 885-2001, s. 83.