1.1 This test method covers a procedure to be used to obtain data for determining the changes in tire tread depth over any specified course and test period.
1.2 The tire tread depth loss data obtained according to the procedures for this test method may be used to calculate tire tread wear by way of the procedures described in Practice F 1016.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.
1.4 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.
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