ASTM D7619-22
(Test Method)Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels, by Automatic Particle Counter
Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels, by Automatic Particle Counter
SIGNIFICANCE AND USE
5.1 This test method is intended for use in the laboratory or in the field for evaluating the cleanliness of distillate fuels, and liquid bio fuels. It is not applicable to on or in-line applications.
5.2 This test method offers advantage over traditional filtration methods in that it is a precise rapid test, and advantage over visual methods as it is not subjective.
5.3 An increase in particle counts can indicate a change in the fuel condition caused by storage or transfer for example.
5.4 High levels of particles can cause filter blockages and have a serious impact on the life of pumps, injectors, pistons and other moving parts. Knowledge of particle size in relation to the metallurgy can provide vital information especially if the hardness of particles is also known from other sources.
5.5 This test method specifies a minimum requirement for reporting measurements in particle size bands (see A1.1.2). Some specific applications may require measurements in other particle size bands.
5.6 Obtaining a representative sample and following the recommended sample and test specimen preparation procedures and timescales is particularly important with particle counting methods. (See Sections 8, 10, 14.1.4 and Note 8.)
5.7 This test method can also be used to estimate the total particulate counts excluding free water droplets in aviation turbine fuels by a chemical pretreatment of the fuel. See Appendix X2.
SCOPE
1.1 This test method uses a specific automatic particle counter2 (APC) to count and measure the size of dispersed dirt particles, water droplets and other particles, in light and middle distillate fuel, and bio fuels such as biodiesel and biodiesel blends, in the overall range from 4 µm(c) to 100 µm(c) and in the size bands ≥4 µm(c), ≥6 µm(c), and ≥14 µm(c).
Note 1: ASTM and military specification fuels falling within the scope of this test method include Specifications: D975 grades 1D and 2D, D1655, D3699, D4814 (see 14.1.1.1), D6751, D7467, distillate grades of D396 and D2880, MIL-DTL-83133, and MIL-DTL-16884.
Note 2: For the purposes of this test method, water droplets are counted as particles, and agglomerated particles are detected and counted as a single larger particle. Dirt includes biological particles. Although the projected area of a particle is measured, this is expressed as the diameter of a sphere for the purposes of this test method.
Note 3: The notation (c), used with particle sizes, is used to denote that the apparatus has been calibrated in accordance with ISO 11171. Strictly this only applies to particles up to 50 µm.
Note 4: This test method may be used for particle sizes bands up to 100 µm(c), however the precision has only been determined for the size bands ≥4 µm(c), ≥6 µm(c), and ≥14 µm(c). All measurements are per millilitre.
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.
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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: D7619 − 22
Standard Test Method for
Sizing and Counting Particles in Light and Middle Distillate
1,2
Fuels, by Automatic Particle Counter
This standard is issued under the fixed designation D7619; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This test method uses a specific automatic particle
2 ization established in the Decision on Principles for the
counter (APC) to count and measure the size of dispersed dirt
Development of International Standards, Guides and Recom-
particles,waterdropletsandotherparticles,inlightandmiddle
mendations issued by the World Trade Organization Technical
distillate fuel, and bio fuels such as biodiesel and biodiesel
Barriers to Trade (TBT) Committee.
blends, in the overall range from 4 µm(c) to 100 µm(c) and in
the size bands ≥4 µm(c), ≥6 µm(c), and ≥14 µm(c).
2. Referenced Documents
NOTE 1—ASTM and military specification fuels falling within the
scope of this test method include Specifications: D975 grades 1D and 2D,
3
2.1 ASTM Standards:
D1655, D3699, D4814 (see 14.1.1.1), D6751, D7467, distillate grades of
D396 Specification for Fuel Oils
D396 and D2880, MIL-DTL-83133, and MIL-DTL-16884.
D975 Specification for Diesel Fuel
NOTE 2—For the purposes of this test method, water droplets are
counted as particles, and agglomerated particles are detected and counted
D1655 Specification for Aviation Turbine Fuels
as a single larger particle. Dirt includes biological particles.Although the
D2880 Specification for Gas Turbine Fuel Oils
projected area of a particle is measured, this is expressed as the diameter
D3699 Specification for Kerosine
of a sphere for the purposes of this test method.
D4057 Practice for Manual Sampling of Petroleum and
NOTE 3—The notation (c), used with particle sizes, is used to denote
Petroleum Products
that the apparatus has been calibrated in accordance with ISO 11171.
Strictly this only applies to particles up to 50 µm.
D4175 Terminology Relating to Petroleum Products, Liquid
NOTE 4—This test method may be used for particle sizes bands up to
Fuels, and Lubricants
100 µm(c), however the precision has only been determined for the size
D4177 Practice for Automatic Sampling of Petroleum and
bands ≥4 µm(c), ≥6 µm(c), and ≥14 µm(c). All measurements are per
Petroleum Products
millilitre.
D4814 Specification for Automotive Spark-Ignition Engine
1.2 The values stated in SI units are to be regarded as
Fuel
standard. No other units of measurement are included in this
D5854 Practice for Mixing and Handling of Liquid Samples
standard.
of Petroleum and Petroleum Products
1.3 This standard does not purport to address all of the
D6300 Practice for Determination of Precision and Bias
safety concerns, if any, associated with its use. It is the
Data for Use in Test Methods for Petroleum Products,
responsibility of the user of this standard to establish appro-
Liquid Fuels, and Lubricants
priate safety, health, and environmental practices and deter-
D6751 Specification for Biodiesel Fuel Blend Stock (B100)
mine the applicability of regulatory limitations prior to use.
for Middle Distillate Fuels
D7467 Specification for Diesel Fuel Oil, Biodiesel Blend
(B6 to B20)
4
1
This test method is under the jurisdiction of ASTM Committee D02 on
2.2 ASTM Adjuncts:
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
ADJ6300 D2PP Determination of Precision and Bias data
Subcommittee D02.14 on Stability, Cleanliness and Compatibility of Liquid Fuels.
for Use in Test Methods for Petroleum Products
Current edition approved April 1, 2022. Published May 2022. Originally
approved in 2010. Last previous edition approved in 2017 as D7619 – 17. DOI:
10.1520/D7619-22.
2
The sole source of the apparatus known to the committee at this time is
3
SETA-AvCount, available from Stanhope-Seta, London Street, Chertsey, Surrey For referenced ASTM standards, visit the ASTM website, www.astm.org, or
KT16 8AP UK. If you are aware of alternative suppliers, please provide this contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
information to ASTM International Headquarters. Your comments will receive Standards volume information, refer to the standard’s Document Summary page
...
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: D7619 − 17 D7619 − 22
Standard Test Method for
Sizing and Counting Particles in Light and Middle Distillate
1,2
Fuels, by Automatic Particle Counter
This standard is issued under the fixed designation D7619; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
2
1.1 This test method uses a specific automatic particle counter (APC) to count and measure the size of dispersed dirt particles,
water droplets and other particles, in light and middle distillate fuel, and bio fuels such as biodiesel and biodiesel blends, in the
overall range from 4 μm(c) to 100 μm(c) and in the size bands ≥4 μm(c), ≥6 μm(c), and ≥14 μm(c).
NOTE 1—ASTM and military specification fuels falling within the scope of this test method include Specifications: D975 grades 1D and 2D, D1655,
D3699, D4814 (see 14.1.1.1), D6751, D7467, distillate grades of D396 and D2880, MIL-DTL-83133, and MIL-DTL-16884.
NOTE 2—For the purposes of this test method, water droplets are counted as particles, and agglomerated particles are detected and counted as a single
larger particle. Dirt includes biological particles. Although the projected area of a particle is measured, this is expressed as the diameter of a sphere for
the purposes of this test method.
NOTE 3—The notation (c), used with particle sizes, is used to denote that the apparatus has been calibrated in accordance with ISO 11171. Strictly this
only applies to particles up to 50 μm.
NOTE 4—This test method may be used for particle sizes bands up to 100 μm(c), however the precision has only been determined for the size bands
≥4 μm(c), ≥6 μm(c), and ≥14 μm(c). All measurements are per millilitre.
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 safety, health, and healthenvironmental 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
3
2.1 ASTM Standards:
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 on Stability, Cleanliness and Compatibility of Liquid Fuels.
Current edition approved July 1, 2017April 1, 2022. Published July 2017May 2022. Originally approved in 2010. Last previous edition approved in 20122017 as
D7619 – 12b.D7619 – 17. DOI: 10.1520/D7619-17.10.1520/D7619-22.
2
The sole source of the apparatus known to the committee at this time is SETA-AvCount, available from Stanhope-Seta, London Street, Chertsey, Surrey KT16 8AP UK.
If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments will receive careful consideration of a meeting
1
of the responsible technical committee, which you may attend.
3
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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D7619 − 22
D396 Specification for Fuel Oils
D975 Specification for Diesel Fuel
D1655 Specification for Aviation Turbine Fuels
D2880 Specification for Gas Turbine Fuel Oils
D3699 Specification for Kerosine
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D4177 Practice for Automatic Sampling of Petroleum and Petroleum
...
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