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ASTM D8544-24

(Test Method)

Standard Test Method for Determination of Conductive Deposits of Electrical and Mechanical Components from Fluids in Liquid and Vapor States within an Electrically Charged System

Standard Test Method for Determination of Conductive Deposits of Electrical and Mechanical Components from Fluids in Liquid and Vapor States within an Electrically Charged System

SIGNIFICANCE AND USE
5.1 This method may be utilized to assess the suitability of a fluid for use in electric vehicle drivelines and other powered or corrosive applications to form conductive deposits and corrosion tendencies with copper or other materials. Fluids known to perform poorly in the field have been shown to fail this test and fluids known to perform well in the field have been shown to pass this test. Comparison of fluids using this test is likely to be an indicator of which fluids may have better field performance. This test is recommended in the SAE J3200, Surface Vehicle Information Report Fluid for Automotive Electrified Drivetrains.
SCOPE
1.1 This test method covers the basic operation of the conductive deposit test. The apparatus is utilized to monitor the formation of dendrites and deposits that are conductive and may form under oxidation conditions of fluids used in electric vehicles and other industries where electronics are involved. The oxidation conditions can vary from 80 °C to 180 °C with very specific circuit boards, under power, and monitoring changes in conductance over time. Both the liquid and vapor areas are monitored for this condition over time. Variables in temperature, voltage, and time can be altered according to the industry need. A reported index based on the rate of deposit formation may be implemented. The typical testing is performed at 150 °C over a period of up to 500 h with a monitored voltage applied.  
Note 1: Testing up to 1000 h has some historical significance and is an option but not covered in this test method.  
1.2 This test method has an interim precision. An interlaboratory study of this test method is being conducted and a complete precision statement is expected to be available on or before December 2024.  
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.

General Information

Status
Published
Publication Date
29-Feb-2024
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.09.0G - Oxidation Testing of Engine Oils
Current Stage
Ref Project

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ASTM D8544-24 - Standard Test Method for Determination of Conductive Deposits of Electrical and Mechanical Components from Fluids in Liquid and Vapor States within an Electrically Charged SystemASTM D8544-24 - Standard Test Method for Determination of Conductive Deposits of Electrical and Mechanical Components from Fluids in Liquid and Vapor States within an Electrically Charged System
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ASTM D8544-24 - Standard Test Method for Determination of Conductive Deposits of Electrical and Mechanical Components from Fluids in Liquid and Vapor States within an Electrically Charged System
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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: D8544 − 24
Standard Test Method for
Determination of Conductive Deposits of Electrical and
Mechanical Components from Fluids in Liquid and Vapor
1
States within an Electrically Charged System
This standard is issued under the fixed designation D8544; 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 mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This test method covers the basic operation of the
conductive deposit test. The apparatus is utilized to monitor the
2. Referenced Documents
formation of dendrites and deposits that are conductive and
2
2.1 ASTM Standards:
may form under oxidation conditions of fluids used in electric
vehicles and other industries where electronics are involved. D130 Test Method for Corrosiveness to Copper from Petro-
leum Products by Copper Strip Test
The oxidation conditions can vary from 80 °C to 180 °C with
D4057 Practice for Manual Sampling of Petroleum and
very specific circuit boards, under power, and monitoring
Petroleum Products
changes in conductance over time. Both the liquid and vapor
D4175 Terminology Relating to Petroleum Products, Liquid
areas are monitored for this condition over time. Variables in
Fuels, and Lubricants
temperature, voltage, and time can be altered according to the
D5185 Test Method for Multielement Determination of
industry need. A reported index based on the rate of deposit
Used and Unused Lubricating Oils and Base Oils by
formation may be implemented. The typical testing is per-
Inductively Coupled Plasma Atomic Emission Spectrom-
formed at 150 °C over a period of up to 500 h with a monitored
etry (ICP-AES)
voltage applied.
E986 Practice for Scanning Electron Microscope Beam Size
NOTE 1—Testing up to 1000 h has some historical significance and is an
Characterization
option but not covered in this test method.
3
2.2 SAE Standard:
1.2 This test method has an interim precision. An interlabo-
SAE J3200 Fluid for Automotive Electrified Drivetrains
ratory study of this test method is being conducted and a
complete precision statement is expected to be available on or
3. Terminology
before December 2024.
3.1 Definitions:
1.3 The values stated in SI units are to be regarded as
3.1.1 For definitions of terms used in this test method, refer
standard. No other units of measurement are included in this
to Terminology D4175.
standard.
3.1.2 conductive deposits, n—in electric vehicle drivelines
1.4 This standard does not purport to address all of the
and other powered systems, material adhering to or collecting
safety concerns, if any, associated with its use. It is the
on electrical components that conduct electricity.
responsibility of the user of this standard to establish appro-
3.1.3 conductive deposit factor, n—a value that is used to
priate safety, health, and environmental practices and deter-
estimate the amount of conductive deposits being formed over
mine the applicability of regulatory limitations prior to use.
time and is calculated using a log summation of the area
1.5 This international standard was developed in accor-
between the beginning resistance baseline and the resistance
dance with internationally recognized principles on standard-
curve formed by the arcing conductive deposit events over
ization established in the Decision on Principles for the
time.
Development of International Standards, Guides and Recom-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee D02 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Standards volume information, refer to the standard’s Document Summary page on
Subcommittee D02.09.0G on Oxidation Testing of Engine Oils. the ASTM website.
3
Current edition approved March 1, 2024. Published March 2024. DOI: 10.1520/ Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale,
D8544-24. PA 15096, http://www.sae.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8544 − 24
3.1.3.1 Discussion—See Appendix X1 for more informa- performance. This test is recommended in the SAE J3200,
tion. Surface Vehicle Information Report Fluid for Automotive
Electrified
...

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50 [345]  
1.3 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current practice normally limits the maximum thickness of plates furnished under this specification to 2 in. [50 mm].  
1.4 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.5 Supplementary requirements are provided for use at the option of the purchaser. The supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract.  
1.6 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.  
1.7 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.

  • Technical specification
    3 pages
    English language
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  • Technical specification
    3 pages
    English language
    sale 15% off