ASTM G115-10(2018)
(Guide)Standard Guide for Measuring and Reporting Friction Coefficients
Standard Guide for Measuring and Reporting Friction Coefficients
SIGNIFICANCE AND USE
5.1 In this guide, factors that shall be considered in conducting a valid test for the determination of the coefficient of friction of a tribosystem are covered, and the use of a standard reporting format for friction data is encouraged.
5.2 The factors that are important for a valid test may not be obvious to non-tribologists, and the friction tests referenced will assist in selecting the apparatus and test technique that is most appropriate to simulate a tribosystem of interest.
5.3 The tribology literature is replete with friction data that cannot readily be used by others because specifics are not presented on the tribosystem that was used to develop the data. The overall goal of this guide is to provide a reporting format that will enable computer databases to be readily established. These databases can be searched for material couples and tribosystems of interest. Their use will significantly reduce the need for each laboratory to do its own testing. Sufficient information on test conditions will be available to determine applicability of the friction data to the engineer's specific needs.
SCOPE
1.1 This guide covers information to assist in the selection of a method for measuring the frictional properties of materials. Requirements for minimum data and a format for presenting these data are suggested. The use of the suggested reporting form will increase the long-term usefulness of the test results within a given laboratory and will facilitate the exchange of test results between laboratories. It is hoped that the use of a uniform reporting format will provide the basis for the preparation of handbooks and computerized databases.
1.2 This guide applies to most solid materials and to most friction measuring techniques and test equipment.
1.3 Units—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
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: G115 − 10 (Reapproved 2018)
Standard Guide for
1
Measuring and Reporting Friction Coefficients
This standard is issued under the fixed designation G115; 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 Horizontal Dynamometer Pull-Meter Method (Withdrawn
3
2014)
1.1 This guide covers information to assist in the selection
D1894 Test Method for Static and Kinetic Coefficients of
of a method for measuring the frictional properties of materi-
Friction of Plastic Film and Sheeting
als. Requirements for minimum data and a format for present-
D2047 Test Method for Static Coefficient of Friction of
ingthesedataaresuggested.Theuseofthesuggestedreporting
Polish-Coated Flooring Surfaces as Measured by the
form will increase the long-term usefulness of the test results
James Machine
within a given laboratory and will facilitate the exchange of
D2394 Test Methods for Simulated ServiceTesting ofWood
test results between laboratories. It is hoped that the use of a
and Wood-Based Finish Flooring
uniform reporting format will provide the basis for the prepa-
D2534 Test Method for Coefficient of Kinetic Friction for
ration of handbooks and computerized databases.
Wax Coatings
1.2 This guide applies to most solid materials and to most
D2714 Test Method for Calibration and Operation of the
friction measuring techniques and test equipment.
Falex Block-on-Ring Friction and Wear Testing Machine
D3108/D3108M Test Method for Coefficient of Friction,
1.3 Units—The values stated in SI units are to be regarded
as standard. No other units of measurement are included in this Yarn to Solid Material
D3412/D3412M Test Method for Coefficient of Friction,
standard.
Yarn to Yarn
1.4 This standard does not purport to address all of the
D3702 Test Method for Wear Rate and Coefficient of Fric-
safety concerns, if any, associated with its use. It is the
tion of Materials in Self-Lubricated Rubbing Contact
responsibility of the user of this standard to establish appro-
Using a Thrust Washer Testing Machine
priate safety, health, and environmental practices and deter-
D4103 Practice for Preparation of Substrate Surfaces for
mine the applicability of regulatory limitations prior to use.
Coefficient of Friction Testing
1.5 This international standard was developed in accor-
D4917 Test Method for Coefficient of Static and Kinetic
dance with internationally recognized principles on standard-
FrictionofUncoatedWritingandPrintingPaperbyUseof
ization established in the Decision on Principles for the
3
the Horizontal Plane Method (Withdrawn 2010)
Development of International Standards, Guides and Recom-
D4918 Test Method for Coefficient of Static Friction of
mendations issued by the World Trade Organization Technical
Uncoated Writing and Printing Paper by Use of the
Barriers to Trade (TBT) Committee.
3
Inclined Plane Method (Withdrawn 2010)
D5183 Test Method for Determination of the Coefficient of
2. Referenced Documents
Friction of Lubricants Using the Four-Ball Wear Test
2
2.1 ASTM Standards:
Machine
C808 Guide for Reporting Friction and Wear Test Results of
D6425 Test Method for Measuring Friction and Wear Prop-
Manufactured Carbon and Graphite Bearing and Seal
erties of Extreme Pressure (EP) Lubricating Oils Using
Materials
SRV Test Machine
C1028 TestMethodforDeterminingtheStaticCoefficientof
E122 Practice for Calculating Sample Size to Estimate,With
Friction of Ceramic Tile and Other Like Surfaces by the
Specified Precision, the Average for a Characteristic of a
Lot or Process
1
This guide is under the jurisdiction of ASTM Committee G02 on Wear and E303 Test Method for Measuring Surface Frictional Proper-
Erosion and is the direct responsibility of Subcommittee G02.50 on Friction.
ties Using the British Pendulum Tester
CurrenteditionapprovedJune1,2018.PublishedJuly2018.Originallyapproved
E670 Test Method for Testing Side Force Friction on Paved
in 1993. Last previous edition was approved in 2013 as G115 – 10 (2013). DOI:
Surfaces Using the Mu-Meter
10.1520/G0115-10R18.
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
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
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