ASTM D8072-17
(Classification)Standard Classification for Reporting Solids and Insoluble Water Contamination of Hydrocarbon-Based Petroleum Products When Analyzed by Imaging Instrumentation
Standard Classification for Reporting Solids and Insoluble Water Contamination of Hydrocarbon-Based Petroleum Products When Analyzed by Imaging Instrumentation
SIGNIFICANCE AND USE
4.1 The purpose of this code is to simplify the reporting of solid particle counts and water droplet concentrations present in petroleum products when measured by imaging instruments. Industry is accustomed to using a three number code to report contamination levels and so this reporting method for imaging instruments is presented to organize results in a similar format.
4.2 Particle count results as described by this classification are reported per the preferred number ranges in Table 1. Preferred numbers were originally developed by Charles Renard and codified in ISO 3. This format is the preferred reporting format since ISO 4406 has no ability to report water.
4.3 Imaging instruments are capable of identifying insoluble water droplets separate from solids, and therefore a suffix code is added after the three (or four) solid particle codes to report water content in parts per million (ppm (v)). To report water content, detected droplets will be converted to ppm (v). The distribution of water droplet size may be reported if it is useful, but it is not required.
SCOPE
1.1 This classification identifies a concise code which can be used by imaging instruments for reporting of solid particles and insoluble water content in hydrocarbon-based petroleum products. The coding system includes the reporting of water content and particle counts in the ≥1 µm range.
Note 1: Calibration is not in accordance with ISO 11171. Comparability to ISO 4406 and its requirements is not inferred.
1.2 It is valid for imaging instruments measuring particle size by projected equivalent particle diameter (see 3.1.1), and which are calibrated and verified using particle size and count standards traceable to NIST.2
1.3 Due to the variation of method and instrument types and resolutions, the reporting of results will include the ASTM standard used to conduct the analysis.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
1.6 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
Relations
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:D8072 −17
Standard Classification for
Reporting Solids and Insoluble Water Contamination of
Hydrocarbon-Based Petroleum Products When Analyzed by
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Imaging Instrumentation
This standard is issued under the fixed designation D8072; 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 2. Referenced Documents
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1.1 This classification identifies a concise code which can
2.1 ISO Standards:
be used by imaging instruments for reporting of solid particles ISO 3 Preferred numbers—Series of preferred numbers
and insoluble water content in hydrocarbon-based petroleum
ISO 4406 Hydraulic Fluid Power—Fluids—Method for cod-
products. The coding system includes the reporting of water ing the level of contamination by solid particles
content and particle counts in the ≥1 µm range.
ISO 11171 Hydraulic fluid power—Calibration of automatic
NOTE 1— Calibration is not in accordance with ISO 11171. Compara-
particle counters for liquids
bility to ISO 4406 and its requirements is not inferred.
3. Terminology
1.2 It is valid for imaging instruments measuring particle
size by projected equivalent particle diameter (see 3.1.1), and
3.1 Definitions:
which are calibrated and verified using particle size and count
3.1.1 projected equivalent particle diameter, n—the diam-
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standards traceable to NIST.
eter calculated from the projected area of a particle if that area
formed a circle, and in equation form is:
1.3 Due to the variation of method and instrument types and
resolutions, the reporting of results will include the ASTM Projected Equivalent Particle Diameter = =(projected area/0.785)
standard used to conduct the analysis.
4. Significance and Use
1.4 The values stated in SI units are to be regarded as
4.1 The purpose of this code is to simplify the reporting of
standard. No other units of measurement are included in this
solid particle counts and water droplet concentrations present
standard.
in petroleum products when measured by imaging instruments.
1.5 This standard does not purport to address all of the
Industry is accustomed to using a three number code to report
safety concerns, if any, associated with its use. It is the
contamination levels and so this reporting method for imaging
responsibility of the user of this standard to establish appro-
instruments is presented to organize results in a similar format.
priate safety and health practices and determine the applica-
4.2 Particle count results as described by this classification
bility of regulatory limitations prior to use.
are reported per the preferred number ranges in Table 1.
1.6 This international standard was developed in accor-
Preferred numbers were originally developed by Charles Re-
dance with internationally recognized principles on standard-
nard and codified in ISO 3. This format is the preferred
ization established in the Decision on Principles for the
reporting format since ISO 4406 has no ability to report water.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 4.3 Imaginginstrumentsarecapableofidentifyinginsoluble
Barriers to Trade (TBT) Committee. water droplets separate from solids, and therefore a suffix code
is added after the three (or four) solid particle codes to report
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water content in parts per million (ppm (v)). To report water
This classification is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
content, detected droplets will be converted to ppm (v). The
Subcommittee D02.96.05 on In-Service Lubricants Particle Counting Practices and
distribution of water droplet size may be reported if it is useful,
Techniques.
but it is not required.
Current edition approved May 1, 2017. Published May 2017. DOI: 10.1520/
D8072-17.
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Referenced standards must be certified by the manufacturer as prepared to
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appropriate National Institute of Standards and Technology (NIST) standards of Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
traceability. See http://www.nist.gov. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D8072−17
TABLE 1 Particle Count Conversion Table
5.2 An optional 5th digit may be added to report the ≥1µm
Greater t
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