ASTM D7501-22
(Test Method)Standard Test Method for Determination of Fuel Filter Blocking Potential of Biodiesel Fuel Blendstock (B100) by Cold Soak Filtration Test (CSFT)
Standard Test Method for Determination of Fuel Filter Blocking Potential of Biodiesel Fuel Blendstock (B100) by Cold Soak Filtration Test (CSFT)
SIGNIFICANCE AND USE
5.1 Some substances that are soluble or appear to be soluble in biodiesel fuel blendstock (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 biodiesel 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 Biodiesel fuel blendstocks that yield short filtration times are expected to give satisfactory operation of biodiesel 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.
SCOPE
1.1 This test method covers the determination by filtration time after cold soak for the suitability of biodiesel fuel blendstock (B100) 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 values stated in SI units are to be regarded as standard. Non-SI units are given for information only.
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.
General Information
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Standards Content (Sample)
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.
Designation: D7501 − 22
Standard Test Method for
Determination of Fuel Filter Blocking Potential of Biodiesel
1
Fuel Blendstock (B100) by Cold Soak Filtration Test (CSFT)
This standard is issued under the fixed designation D7501; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D6751 Specification for Biodiesel Fuel Blend Stock (B100)
for Middle Distillate Fuels
1.1 This test method covers the determination by filtration
time after cold soak for the suitability of biodiesel fuel
3. Terminology
blendstock (B100) that meets all other requirements of Speci-
fication D6751 and has a cloud point below 20 °C (68 °F) to 3.1 Definitions:
provide adequate low temperature operability performance to
3.1.1 For definitions of terms used in this test method, refer
at least the cloud point of the finished blend.
to Terminology D4175.
3.1.2 biodiesel, n—fuel comprised of mono-alkyl esters of
1.2 The values stated in SI units are to be regarded as
long chain fatty acids derived from vegetable oils or animal
standard. Non-SI units are given for information only.
fats, designated as B100.
1.3 This standard does not purport to address all of the
3.1.3 biodiesel blend (BXX), n—a homogeneous mixture of
safety concerns, if any, associated with its use. It is the
hydrocarbon oils and mono-alkyl esters of long chain fatty
responsibility of the user of this standard to establish appro-
acids.
priate safety, health, and environmental practices and deter-
3.1.3.1 Discussion—In the abbreviation, BXX, the XX rep-
mine the applicability of regulatory limitations prior to use.
resents the volume percentage of biodiesel fuel in the blend.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.1.4 bond, v—to connect two parts of a system electrically
ization established in the Decision on Principles for the
bymeansofaconductivewiretoeliminatevoltagedifferences.
Development of International Standards, Guides and Recom-
3.2 Definitions of Terms Specific to This Standard:
mendations issued by the World Trade Organization Technical
3.2.1 air chamber, n—unit to control temperature of sample
Barriers to Trade (TBT) Committee.
for cooling with maximum 0.5 °C variation from set point.The
unit shall use a microprocessor temperature controller with
2. Referenced Documents
digitalsetpointandreadout.Afood-graderefrigeratordoesnot
2
2.1 ASTM Standards:
provide adequate temperature stability for this test method.
D4057 Practice for Manual Sampling of Petroleum and
3.2.2 minor component, n—material present in B100, typi-
Petroleum Products
cally at concentrations well below 1 % by mass.
D4175 Terminology Relating to Petroleum Products, Liquid
Fuels, and Lubricants 3.2.3 thermal history, n—range of temperatures that a batch
or sample of B100 has experienced which can result in
D6217 Test Method for Particulate Contamination in Middle
Distillate Fuels by Laboratory Filtration separation or precipitation of minor components.
D6300 Practice for Determination of Precision and Bias 3.2.3.1 Discussion—Cooling some biodiesel fuels can result
Data for Use in Test Methods for Petroleum Products, in precipitation or separation of minor components that have
limited solubility in B100. Heating these biodiesel fuels above
Liquid Fuels, and Lubricants
40 °C is believed to redissolve most of these minor compo-
nents and thus erase the thermal history of the sample.
1
This test method is under the jurisdiction of ASTM Committee D02 on
3.3 Abbreviations:
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.14 on Stability, Cleanliness and Compatibility of Liquid Fuels.
3.3.1 CSFT—Cold Soak Filtration Test
Current edition approved April 1, 2022. Published April 2022. Originally
approved in 2009. Last previous edition approved in 2021 as D7501 – 21. DOI:
4. Summary of Test Method
10.1520/D7501-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1 Inthistestmethod,300 mLofbiodiesel(B100)isstored
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
at 4.5 °C 6 0.5 °C (40 °F 6 1 °F) for 16 h, allowed to warm to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 25 °C 6 1 °C (77 °F 6 2 °F), and vacuum filtered through a
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM Internat
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7501 − 21 D7501 − 22
Standard Test Method for
Determination of Fuel Filter Blocking Potential of Biodiesel
1
Fuel Blendstock (B100) by Cold Soak Filtration Test (CSFT)
This standard is issued under the fixed designation D7501; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This test method covers the determination by filtration time after cold soak for the suitability of biodiesel fuel blendstock
(B100) 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 values stated in SI units are to be regarded as standard. Non-SI units are given for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D6217 Test Method for Particulate Contamination in Middle Distillate Fuels by Laboratory Filtration
D6300 Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products, Liquid Fuels, and
Lubricants
D6751 Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology D4175.
3.1.2 biodiesel, n—fuel comprised of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats,
designated as B100.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.14 on Stability, Cleanliness and Compatibility of Liquid Fuels.
Current edition approved Dec. 1, 2021April 1, 2022. Published December 2021April 2022. Originally approved in 2009. Last previous edition approved in 20182021 as
D7501 – 18a.D7501 – 21. DOI: 10.1520/D7501-21.10.1520/D7501-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D7501 − 22
3.1.3 biodiesel blend (BXX), n—a homogeneous mixture of hydrocarbon oils and mono-alkyl esters of long chain fatty acids.
3.1.3.1 Discussion—
In the abbreviation, BXX, the XX represents the volume percentage of biodiesel fuel in the blend.
3.1.4 bond, v—to connect two parts of a system electrically by means of a conductive wire to eliminate voltage differences.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 air chamber, n—unit to control temperature of sample for cooling with maximum 0.5 °C variation from set point. The unit
shall use a microprocessor temperature controller with digital set point and readout. A food-grade refrigerator does not provide
adequate temperature stability for this test method.
3.2.2 minor component, n—material present in B100, typically at concentrations well below 1 % by mass.
3.2.3 thermal history, n—range of temperatures that a batch or sample of B100 has experienced which can result in separation or
precipitation of minor components.
3.2.3.1 Discussion—
Cooling some biodiesel fuels can result in precipitation or separation of minor components that have limited solubility in B100.
Heating these biodiesel fuels above 40 °C is beli
...
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