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ASTM D7899 : 13

Standard Test Method for Measuring the Merit of Dispersancy of In-Service Engine Oils with Blotter Spot Method

Standard Details

1.1 This test method covers a procedure for determination of the merit of dispersancy of diesel crankcase engine oils as well as other types of engine oils where pollutants of diverse sources such as soot from combustion, metallic particles from wear, corrosion of mechanical parts, and insoluble products resulting from the oxidation of the oil may contaminate the lubricant.

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

1.3 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.

Note 1It is not the intent of this test method to establish or recommend normal, cautionary, warning, or alert limits for any machinery. Such limits should be established in conjunction with advice and guidance from the machinery manufacturer and maintenance group.

General Information

Status : Historical
Standard Type: Main
Document No: ASTM D7899 : 13
Document Year: 2013
Pages: 7
  • Section Volume:
  • 05.04 Volume 05.04 Petroleum Products, Liquid Fuels, and Lubricants (IV): D6973-D7755
  • ICS:
  • 75.100 Lubricants, industrial oils and related products

Life Cycle

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ASTM D7899 : 13
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