(A) For the purpose of this subchapter, flammable liquids are divided into three classes, according to flash point, as follows:
Class I | Liquids with a flash point at or below 20°F (4°C) closed cup tester |
Class II | Liquids with a flash point above that for Class I and at or below 70°F (21°C) |
Class III | Liquids having a flash point above 70°F closed cup tester |
(B) The flash point shall be as determined with the Elliot, Abel, Abel Pensky or the Tag closed cup testers, but the Tag closed cup tester (standardized by the United States Bureau of Standards) shall be authoritative in case of dispute. All tests shall be made in accordance with the methods adopted by the American Society for testing materials.
(C) Representative examples of the classes of flammable liquids are:
Class I | Class II | Class III |
Class I | Class II | Class III |
Methyl-acetate Ether | Alcohol | Kerosene |
Carbon bl-sulphide | Amyl acetate | Amyl alcohol |
Gasoline | Tuluol | Turpentine |
Naphtha | Ethyl acetate | Fuel oil |
Benzol | Methyl alcohol | Stoddard solvent |
Acetone | Ethyl alcohol | |
Collodion | Pyridine | |
(1980 Code, § 27.003)