C.F.R. » Title 46 » CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY › SUBCHAPTER D—TANK VESSELS › PART 30—GENERAL PROVISIONS › Subpart 30.10—Definitions

46 C.F.R. § 30.10-27

Flashpoint—TB/ALL

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The term flashpoint indicates the temperature in degrees Fahrenheit at which a liquid gives off a flammable vapor when heated in an open-cup tester. For the purpose of the regulations in this subchapter, flashpoints determined by other testing methods will be equivalent to those determined with an open-cup tester, as follows:

Table 30.10-27—Equivalent Flashpoints

[In degrees Fahrenheit]

Open-cup testerTag closed-cup tester (A.S.T.M.)Pensky-Martens closed tester (A.S.T.M.)
8075
150140
[CGFR 65-50, 30 FR 16657, Dec. 30, 1965, as amended by USCG-2014-0688, 79 FR 58279, Sept. 29, 2014]