2 (1) In these Regulations,
flammable liquid means any liquid with a flash point below 175°F, as determined by Tagliabue’s Open Cup Tester, and having a Reid vapour pressure not exceeding 40 psi absolute at 100°F or any liquid with a flash point of 175°F or above when it is heated by artificial means to a temperature not less than its flash point temperature; (liquide inflammable)
flash point is the minimum temperature of a flammable liquid in degrees Fahrenheit, as determined by Tagliabue’s Open Cup Tester in accordance with A.S.T.M. Test Method: D-1310-56T at which its vapours will form a flammable mixture with air; (point éclair)
vapour pressure is the ReidFootnote * pressure, measured in pounds per square inch absolute (psia) that is exerted by a volatile liquid at a given temperature. (tension de vapeur)
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(2) For the purpose of these Regulations, flammable liquids are divided into three classes:
(a) Class I flammable liquids includes all flammable liquids, except crude petroleum, having flash points at or below 80°F; this Class also includes Class II flammable liquids when they are heated by artificial means to temperatures not less than their flash point temperatures;
(b) Class II flammable liquids includes all flammable liquids, except crude petroleum, having flash points above 80°F but below 175°F; this Class also includes liquids with flash points of 175°F or above when they are heated by artificial means to temperatures not less than their flash point temperatures;
