This European Standard specifies a method for determining contamination as the content of undissolved substances in diesel fuel containing up to 5 % (V/V) fatty acid methyl esters (FAME) and in 100 % (V/V) FAME from 6 mg/kg to 30 mg/kg.NOTE 1 Excessive contamination in a fuel system can give rise to premature blocking of filters and / or hardware failure, and is therefore undesirable. This standard applies to liquid petroleum products having a kinematic viscosity not exceeding 8 mm2/s at 20 °C, or 5 mm2/s at 40 °C, e.g. diesel fuel as specified in EN 590 or light fuel oils. Although the test method precision has not been defined, the method described may al