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ASTM D3525-04(2016)

Заменен
Standard Test Method for Gasoline Diluent in Used Gasoline Engine Oils by Gas Chromatography — 5 стр.
Значение и использование

5.1 Some fuel dilution of the engine oil may take place during normal operation. However, excessive fuel dilution is of concern in terms of possible performance problems. This method provides a means to determine the magnitude of the fuel dilution, providing the user with the ability to predict performance problems and to take appropriate action.

Область применения

1.1 This test method covers the use of gas chromatography to determine the amount of gasoline in used lubricating oils arising from their use in gasoline engines.

1.2 There is no limitation for the determination of the dilution range, provided that the amount of sample plus internal standard is within the linear range of the gas chromatograph detector.

1.3 This test method is limited to gas chromatographs equipped with flame ionization detectors and programmable ovens.

Note 1: The use of other detectors and instrumentation has been reported. However, the precision statement applies only when the instrumentation specified is employed.

1.4 The applicability of this method to gelled used engine oils has not been adequately investigated in order to ensure compliance with the indicated repeatability and reproducibility. Gelled oils are defined as oils that develop structure on standing, but that return to their original fluidity with light agitation.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

ICS
75.100 Lubricants,. Including mineral oils, fluids for metal working and for temporary protection against corrosion / Смазки, индустриальные масла и связанные с ними продукты. Включая минеральные масла, жидкости для обработки металлов и для временной защиты от коррозии
Сборник ASTM
05.01 Petroleum Products, Liquid Fuels, and Lubricants (I): C1234–D3709 / Нефтепродукты, жидкое топливо и смазочные материалы (I): C1234–D3709
Тематика
Petroleum