§ 30.10-22 — -22 Flammable Liquid—Tb/all

The term flammable liquid means any liquid which gives off flammable vapors (as determined by flashpoint from an open-cup tester, as used for test of burning oils) at or below a temperature of 80 °F. Flammable liquids are referred to by grades as follows:

(a) Grade A. Any flammable liquid having a Reid

1 vapor pressure of 14 pounds or more.

1 American Society for Testing Materials Standard D 323 (incorporated by reference, see § 30.01-3), Method of Test for Vapor Pressure of Petroleum Products (Reid Method).

(b) Grade B. Any flammable liquid having a Reid

1 vapor pressure under 14 pounds and over 8

1/2 pounds.

(c) Grade C. Any flammable liquid having a Reid

1 vapor pressure of 8

1/2 pounds or less and a flashpoint of 80 °F. or below.