ASTM-D7501 › Historical Revision Information
Standard Test Method for Determination of Fuel Filter Blocking Potential of Biodiesel (B100) Blend Stock by Cold Soak Filtration Test (CSFT)
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Scope
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 and health practices and determine the applicability of regulatory limitations prior to use.
Significance and Use
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.
5.2 The test method can be used in specifications as a means of controlling levels of minor filter plugging components in biodiesel and biodiesel blends.
Keywords
biodiesel; biodiesel blend; diesel fuel; filter blocking potential; glass fiber filter; laboratory filtration; low temperature operability; middle distillate fuel; ICS Number Code 75.160.20 (Liquid fuels)
To find similar documents by ASTM Volume:
05.04 (Petroleum Products and Lubricants (IV): D6973 - latest)
To find similar documents by classification:
75.160.20 (Liquid fuels Including gasoline, diesel, kerosene, etc.)
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Document Number
ASTM-D7501-12a
Revision Level
2012A EDITION
Status
Superseded
Modification Type
Revision
Publication Date
March 1, 2013
Document Type
Test Method
Page Count
6 pages
Committee Number
D02.14