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ASTM G176-03(2017)

(Test Method)

Standard Test Method for Ranking Resistance of Plastics to Sliding Wear Using Block-on-Ring Wear Test—Cumulative Wear Method

Standard Test Method for Ranking Resistance of Plastics to Sliding Wear Using Block-on-Ring Wear Test—Cumulative Wear Method

SIGNIFICANCE AND USE
5.1 The significance of this test method in any overall measurement program directed toward a service application will depend on the relative match of test conditions to the conditions of the service application.  
5.2 This test method prescribes the test procedure and method of calculating and reporting data for determining the sliding wear resistance of plastics, using cumulative volume loss.  
5.3 The intended use of this test is for coarse screening of plastics in terms of their resistance to sliding wear.
SCOPE
1.1 This test method covers laboratory procedures for determining the resistance of plastics to sliding wear. The test utilizes a block-on-ring friction and wear testing machine to rank plastics according to their sliding wear characteristics against metals or other solids.  
1.2 An important attribute of this test is that it is very flexible. Any material that can be fabricated into, or applied to, blocks and rings can be tested. Thus, the potential materials combinations are endless. In addition, the test can be run with different gaseous atmospheres and elevated temperatures, as desired, to simulate service conditions.  
1.3 Wear test results are reported as the volume loss in cubic millimetres for the block and ring. Materials of higher wear resistance will have lower volume loss.  
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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, health, and environmental 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

Status
Published
Publication Date
31-Oct-2017
ICS
19.060 - Mechanical testing
83.080.01 - Plastics in general
Technical Committee
G02 - Wear and Erosion
Drafting Committee
G02.40 - Non-Abrasive Wear
Current Stage
Ref Project

Relations

Refers
ASTM G40-15 - Standard Terminology Relating to Wear and Erosion
Effective Date
01-Nov-2015
Refers
ASTM D2714-94(2019) - Standard Test Method for Calibration and Operation of the Falex Block-on-Ring Friction and Wear Testing Machine
Effective Date
01-May-2019
Referred By
ASTM G115-10(2018) - Standard Guide for Measuring and Reporting Friction Coefficients
Effective Date
01-Nov-2017

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ASTM G176-03(2017) - Standard Test Method for Ranking Resistance of Plastics to Sliding Wear Using Block-on-Ring Wear Test—Cumulative Wear MethodASTM G176-03(2017) - Standard Test Method for Ranking Resistance of Plastics to Sliding Wear Using Block-on-Ring Wear Test—Cumulative Wear Method
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ASTM G176-03(2017) - Standard Test Method for Ranking Resistance of Plastics to Sliding Wear Using Block-on-Ring Wear Test—Cumulative Wear Method
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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: G176 − 03 (Reapproved 2017)
Standard Test Method for
Ranking Resistance of Plastics to Sliding Wear Using
1
Block-on-Ring Wear Test—Cumulative Wear Method
This standard is issued under the fixed designation G176; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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
2
2.1 ASTM Standards:
1.1 This test method covers laboratory procedures for de-
D618Practice for Conditioning Plastics for Testing
termining the resistance of plastics to sliding wear. The test
D2714Test Method for Calibration and Operation of the
utilizes a block-on-ring friction and wear testing machine to
Falex Block-on-Ring Friction and Wear Testing Machine
rank plastics according to their sliding wear characteristics
E122PracticeforCalculatingSampleSizetoEstimate,With
against metals or other solids.
Specified Precision, the Average for a Characteristic of a
1.2 An important attribute of this test is that it is very
Lot or Process
flexible.Anymaterialthatcanbefabricatedinto,orappliedto,
E177Practice for Use of the Terms Precision and Bias in
blocks and rings can be tested. Thus, the potential materials ASTM Test Methods
combinations are endless. In addition, the test can be run with E691Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
different gaseous atmospheres and elevated temperatures, as
desired, to simulate service conditions. G40Terminology Relating to Wear and Erosion
G77Test Method for Ranking Resistance of Materials to
1.3 Weartestresultsarereportedasthevolumelossincubic
Sliding Wear Using Block-on-Ring Wear Test
millimetres for the block and ring. Materials of higher wear
resistance will have lower volume loss.
3. Terminology
1.4 The values stated in SI units are to be regarded as the 3.1 Definitions:
3.1.1 wear—damage to a solid surface, generally involving
standard. The values given in parentheses are for information
progressive loss of material, due to relative motion between
only.
that surface and a contacting substance or substances. G40
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Test Method
responsibility of the user of this standard to establish appro-
4.1 A test plastic block is loaded against a metal test ring
priate safety, health, and environmental practices and deter-
that rotates at a given speed for a given number of revolutions.
mine the applicability of regulatory limitations prior to use.
Blockscarvolumeiscalculatedfromtheblockscarwidth.The
1.6 This international standard was developed in accor-
friction force required to keep the block in place may be
dance with internationally recognized principles on standard-
continuously measured during the test with a load cell. When
ization established in the Decision on Principles for the
this is done, the friction force data are combined with normal
Development of International Standards, Guides and Recom-
force data to obtain values for the coefficient of friction and
mendations issued by the World Trade Organization Technical
reported.
Barriers to Trade (TBT) Committee.
5. Significance and Use
5.1 The significance of this test method in any overall
measurement program directed toward a service application
will depend on the relative match of test conditions to the
conditions of the service application.
1
This test method is under the jurisdiction of ASTM Committee G02 on Wear
and Erosion and is the direct responsibility of Subcommittee G02.40 on Non-
2
Abrasive Wear. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2017. Published December 2017. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2003. Last previous edition approved in 2009 as G176–03 (2009). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/G0176-03R17. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
G176 − 03 (2017)
5.2 This test method prescribes the test procedure and prior to testing in accordance with Procedure A of Practice
method of calculating and reporting data for determining the D618 for those samples where conditioning is required.
sliding wear resistance of plastics, using cumulat
...

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SCOPE
1.1 This test method2 is an analytical procedure using transmission electron microscopy (TEM) for the determination of the concentration of asbestos structures in ambient atmospheres and includes measurement of the dimension of structures and of the asbestos fibers found in the structures from which aspect ratios are calculated.  
1.1.1 This test method allows determination of the type(s) of asbestos fibers present.  
1.1.2 This test method cannot always discriminate between individual fibers of the asbestos and non-asbestos analogues of the same amphibole mineral.  
1.2 This test method is suitable for determination of asbestos in both ambient (outdoor) and building atmospheres.  
1.2.1 This test method is defined for polycarbonate capillary-pore filters or cellulose ester (either mixed esters of cellulose or cellulose nitrate) filters through which a known volume of air has been drawn and for blank filters.  
1.3 The upper range of concentrations that can be determined by this test method is 7000 s/mm2. The air concentration represented by this value is a function of the volume of air sampled.  
1.3.1 There is no lower limit to the dimensions of asbestos fibers that can be detected. In practice, microscopists vary in their ability to detect very small asbestos fibers. Therefore, a minimum length of 0.5 μm has been defined as the shortest fiber to be incorporated in the reported results.  
1.4 The direct analytical method cannot be used if the general particulate matter loading of the sample collection filter as analyzed exceeds approximately 10 % coverage of the collection filter by particulate matter.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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 appropri...

  • Standard
    33 pages
    English language
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  • Standard
    33 pages
    English language
    sale 15% off