1. Scope*
1.1 This test method covers determination of the coefficients
of starting and sliding friction of plastic film and sheeting when
sliding over itself or other substances at specified test conditions.
The procedure permits the use of a stationary sled with
a moving plane, or a moving sled with a stationary plane. Both
procedures yield the same coefficients of friction values for a
given sample.
NOTE 1—For the frictional characteristics of plastic films partially
wrapped around a cylinder, or capstan, see Test Method G143 under the
jurisdiction of ASTM Subcommittee G02.50.
1.2 Test data obtained by this test method is relevant and
appropriate for use in engineering design.
1.2.1 As an option to this test, coefficient of friction may be
run at temperatures other than 23°C by heating only the plane
while the sled is at ambient temperature.
1.3 The values stated in SI units are to be regarded as
standard. The values given in parentheses are for information
only.
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 and health practices and determine the applicability
of regulatory limitations prior to use. For a specific
precautionary statement, see the end of 6.5.
1. Scope*1.1 This test method covers determination of the coefficientsof starting and sliding friction of plastic film and sheeting whensliding over itself or other substances at specified test conditions.The procedure permits the use of a stationary sled witha moving plane, or a moving sled with a stationary plane. Bothprocedures yield the same coefficients of friction values for agiven sample.NOTE 1—For the frictional characteristics of plastic films partiallywrapped around a cylinder, or capstan, see Test Method G143 under thejurisdiction of ASTM Subcommittee G02.50.1.2 Test data obtained by this test method is relevant andappropriate for use in engineering design.1.2.1 As an option to this test, coefficient of friction may berun at temperatures other than 23°C by heating only the planewhile the sled is at ambient temperature.1.3 The values stated in SI units are to be regarded asstandard. The values given in parentheses are for informationonly.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appropriatesafety and health practices and determine the applicabilityof regulatory limitations prior to use. For a specificprecautionary statement, see the end of 6.5.
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