View all text of Subpart 30.10 [§ 30.10-1 - § 30.10-71]
§ 30.10-15 - Combustible liquid—TB/ALL.
The term combustible liquid means any liquid having a flashpoint above 80 °F. (as determined from an open-cup tester, as used for test of burning oils). In the regulations of this subchapter, combustible liquids are referred to by grades, as follows:
(a) Grade D. Any combustible liquid having a flashpoint below 150 °F. and above 80 °F.
(b) Grade E. Any combustible liquid having a flashpoint of 150 °F. or above.