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Significance and Use
5.1 The determination of engine oil volatility at 371 °C (700 °F) is a requirement in some lubricant specifications.
5.2 This test method is intended as an alternative to Test Methods and the Noack method for the determination of engine oil volatility (CEC L-40–93). The data obtained from this test method are not directly equivalent to Test Method . The calculated results of the oil volatility estimation by this test method can be biased by the presence of additives (polymeric materials), which may not completely elute from the gas chromatographic column, or by heavier base oils not completely eluting from the column. The results of this test method may also not correlate with other oil volatility methods for nonhydrocarbon synthetic oils.
5.3 This test method can be used on lubricant products not within the scope of other test methods using simulated distillation methodologies, such as Test Method .
1.1 This test method covers an estimation of the amount of engine oil volatilized at 371 °C (700 °F).
1.1.1 This test method can also be used to estimate the amount of oil volatilized at any temperature between 126 °C and 371 °C, if so desired.
1.2 This test method is limited to samples having an initial boiling point (IBP) greater than 126 °C (259 °F) or the first calibration point and to samples containing lubricant base oils with end points less than 615 °C (1139 °F) or the last n-paraffins in the calibration mixture. By using some instruments and columns, it is possible to extend the useful range of the test method.
1.3 This test method uses the principles of simulated distillation methodology.
1.4 This test method may be applied to both lubricant oil base stocks and finished lubricants containing additive packages. These additive packages generally contain high molecular weight, nonvolatile components that do not elute from the chromatographic column under the test conditions. The calculation procedure used in this test method assumes that all of the sample elutes from the column and is detected with uniform response. This assumption is not true for samples with nonvolatile additives, and application of this test method under such conditions will yield results higher than expected. For this reason, results by this test method are reported as area percent of oil.
1.5 The values stated in SI units are to be regarded as standard. The values stated in inch-pound units are provided for information only.
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 limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D2887 Test Method for Boiling Range Distribution of Petroleum Fractions by Gas Chromatography
D4626 Practice for Calculation of Gas Chromatographic Response Factors
D5800 Test Method for Evaporation Loss of Lubricating Oils by the Noack Method
E355 Practice for Gas Chromatography Terms and Relationships
E594 Practice for Testing Flame Ionization Detectors Used in Gas or Supercritical Fluid Chromatography
E1510 Practice for Installing Fused Silica Open Tubular Capillary Columns in Gas Chromatographs
Coordinating European Council StandardCEC L-40–93 Evaporation Loss of Lubricating Oils (NOACK Evaporative Tester) Available from Coordinating European Council (CEC), C/o Interlynk Administrative Services, Ltd., P.O. Box 6475, Earl Shilton, Leicester, LE9 9ZB, U.K., http://www.cectests.org.
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
UNSPSC Code 15121501(Engine oil)
ASTM D6417-15, Standard Test Method for Estimation of Engine Oil Volatility by Capillary Gas Chromatography, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top