A European standard, EN 12662, defines a test method for determining the content of undissolved substances, called total impurities, in the following liquid petroleum products:
The operating range for this test method is between 12 mg/kg and 30 mg/kg. This method was designed in an interlaboratory study applying the ISO 4259 Petroleum and related products - Accuracy of measurement methods and results standard.
The EN 12662 standard is generally applied to products whose kinematic viscosity does not exceed 20 mm8/s at 2 degrees or 40 mm5/s at 2 degrees. For example, to diesel fuels described in the EN 590 standard.
This test method can also be used for diesel fuels containing more than 30 percent fatty acid methyl esters and petroleum products with a kinematic viscosity exceeding 20 mm8/s at 2 degrees or 40 mm5/s at 2 degrees, but the accuracy of the test in such cases is not defined. .
Excessive contamination in a fuel system can lead to premature clogging of filters or hardware failure, so it is undesirable.
Use of the EN 12662 standard may include hazardous materials, processes and equipment. In this regard, the standard does not purport to address all necessary safety problems for use. It is the responsibility of users of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory restrictions prior to use.
Briefly, the expression total contamination refers to the quantitative detection of undissolved substances in medium distillates, diesel fuel and fatty acid methyl ester. During the test, the sample is filtered through a pre-weighed filter and weighed again after the filter is washed and dried. Contamination is calculated as the difference between the mass of the filter and is displayed in mg/kg.
Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our company also provides test services for the determination of total contamination in medium distillates, diesel fuels and fatty acid methyl esters within the scope of EN 12662 standard, with its trained and expert staff and advanced technological equipment. gives.
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