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ASTM D7501-18a

Historical Revision

Standard Test Method for Determination of Fuel Filter Blocking Potential of Biodiesel Fuel Blendstock (B100) by Cold Soak Filtration Test (CSFT)

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1.1 This test method covers the determination by filtration time after cold soak of the suitability for a biodiesel (B100) blend stock that meets all other requirements of Specification D6751 and has a cloud point below 20 °C (68 °F) to provide adequate low temperature operability performance to at least the cloud point of the finished blend.

1.2 The formal precision of this test method is included in 13.1 on Precision.

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

1.4 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.

1.5 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 Some substances that are soluble or appear to be soluble in biodiesel (B100) at room temperature will, upon cooling to temperatures above the cloud point or standing at room temperature for extended periods, come out of solution. This phenomenon has been observed in both B100 and BXX blends. These substances can cause filter plugging. This method provides an accelerated means of assessing the presence of these substances in B100 and their propensity to plug filters.

5.1.1 B100 biodiesel fuels that give short filtration times are expected to give satisfactory operation of BXX blends at least down to the cloud point of the biodiesel blends.

5.2 The test method can be used in specifications as a means of controlling levels of minor filter plugging components in biodiesel and biodiesel blends.

SDO ASTM: ASTM International
Document Number D7501
Publication Date Oct. 15, 2018
Language en - English
Page Count 6
Revision Level 18a
Supercedes
Committee D02.14
Publish Date Document Id Type View
April 1, 2022 D7501-22 Revision
Dec. 1, 2021 D7501-21 Revision
Oct. 15, 2018 D7501-18A Revision
July 1, 2018 D7501-18 Revision
Nov. 1, 2012 D7501-12A Revision
April 15, 2012 D7501-12 Revision
Oct. 1, 2009 D7501-09B Revision
Sept. 1, 2009 D7501-09A Revision
April 1, 2009 D7501-09 Revision
Oct. 1, 2017 D7501-12AR17 Reaffirmation