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ASTM D7321-21

Current Revision

Standard Test Method for Particulate Contamination of Biodiesel B100 Blend Stock Biodiesel Esters and Biodiesel Blends by Laboratory Filtration

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1.1 This test method covers the determination of the mass of particulate contamination in B100 biodiesel in accordance with Specification D6751 and BXX blends that are prepared against all No. 1 and No. 2 grade fuels allowed within Specifications D396 and D975.

Note 1: Middle distillate fuels with flash points less than 38 °C have been ignited by discharges of static electricity when the fuels have been filtered through inadequately bonded or grounded glass fiber filter systems. See Guide D4865 for a more detailed discussion of static electricity formation and discharge.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


5.1 The mass of particulates present in a fuel is a significant factor, along with the size and nature of the individual particles, in the rapidity with which fuel system filters and other small orifices in fuel systems can become plugged. This test method provides a means of assessing the mass of particulates present in a fuel sample.

5.2 The test method can be used in specifications and purchase documents as a means of controlling particulate contamination levels in the fuels purchased.

SDO ASTM: ASTM International
Document Number D7321
Publication Date Oct. 15, 2021
Language en - English
Page Count 6
Revision Level 21
Supercedes
Committee D02.14
Publish Date Document Id Type View
Oct. 15, 2021 D7321-21 Revision
Oct. 1, 2018 D7321-18A Revision
July 1, 2018 D7321-18 Revision
July 1, 2016 D7321-16A Revision
June 1, 2016 D7321-16 Revision
June 1, 2014 D7321-14 Revision
Jan. 1, 2011 D7321-11E01 Revision
Jan. 1, 2011 D7321-11 Revision
March 15, 2008 D7321-08 Revision