GOST 6356
Petroleum products. Method of test for flash point boy closed cup.
The scope of the method is to determine the lowest temperature of a combustible substance at which, under test conditions, a mixture of vapors and gases with air is formed above its surface, which can flash in the air from an ignition source, but the rate of their formation is still insufficient for subsequent combustion. For this, the product to be tested is heated in a closed crucible at a constant rate with continuous stirring and tested for flash at specified temperature intervals.
Interstate standard GOST 6356 establishes a method for determining the flash point in a closed crucible.
The method consists in determining the lowest temperature of a combustible substance at which, under test conditions, a mixture of vapors and gases with air is formed above its surface, which can flash in air from an ignition source, but the rate of their formation is still insufficient for subsequent combustion. For this, the product to be tested is heated in a closed crucible at a constant rate with continuous stirring and tested for flash at specified temperature intervals.
