D93

D93-00
Standard Test Methods for Flash-Point by Pensky-Martens Closed Cup Tester

1.1 This test method covers the determination of the flash point of petroleum products in the temperature range from 40 to 360^oC by a manual Pensky-Martens closed-cup apparatus or an automated Pensky-Martens closed-cup apparatus.

Note 1--Flash point determination as above 250^oC can be performed, however, the precisions have not been determined above this temperature. For residual fuels, precisions have not been determined for flash points above 100^oC.

1.2 Procedure A is applicable to distillate fuels (diesel, kerosene, heating oil, turbine fuels), new lubricating oils, and other homogeneous petroleum liquids not included in the scope of Procedure B.

1.3 Procedure B is applicable to residual fuel oils, cutback residua, used lubricating oils, mixtures of petroleum liquids with solids, petroleum liquids that tend to form a surface film under test conditions, or are petroleum liquids of such kinematic viscosity that they are not uniformly heated under the stirring and heating conditions of Procedure A.

Note 2--Liquids having kinematic viscosities less than 5.5 mm 2/s (cSt) at 40^oC (104^oF), do not contain suspended solids, or do not have a tendency to form a surface film while under test conditions, can be tested in accordance with Test Method D-56.

1.4 This test method is applicable for the detection of contamination of relatively nonvolatile or nonflammable materials with volatile or flammable materials.

Also see: ISO-2719

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