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TITLE 46 - SHIPPING
CHAPTER I - COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
SUBCHAPTER D - TANK VESSELS
PART 30 - GENERAL PROVISIONS
30.10 - 22 - Flammable liquidTB/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 30.013), 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.
[CGFR 6550, 30 FR 16657, Dec. 30, 1965, as amended by CGD 7396, 42 FR 49023, Sept. 26, 1977; USCG-20007790, 65 FR 58458, Sept. 29, 2000]
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