This standard establishes a method for determining the actual tars in motor fuels (kerosene, diesel fuel). The method consists of evaporating the test fuel under a stream of water vapor under test conditions and serves to conditionally assess the tendency of the fuel to form tar when used in an engine
GOST 8489-1985 history
2001GOST 8489-1985 Motor fuel. Method for determination of existent gums (Budarov's)