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Significance and Use
The test data obtained with this test method may be used to compare the performance of various tires for the conditions under which they were tested.
This test method is suitable for a variety of quality assurance, research, and development purposes, when tires are to be compared during a single series of tests. The procedure described may not be suitable for regulatory statutes or specification acceptance because the values obtained may not agree, or correlate either in rank order or absolute tread wear performance level, with values obtained on other road surfaces, or on the same surface after additional wear, under other environmental conditions, on other test vehicles, or with results obtained by other test procedures.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
F421 Test Method for Measuring Groove and Void Depth in Passenger Car Tires
F457 Test Method for Speed and Distance Calibration of Fifth Wheel Equipped With Either Analog or Digital Instrumentation
F538 Terminology Relating to the Characteristics and Performance of Tires
F1016 Practice for Linear Tire Treadwear Data Analysis
F1502 Test Method for Static Measurements on Tires for Passenger Cars, Light Trucks, and Medium Duty Vehicles
ICS Number Code 83.160.10 (Road vehicle tyres)
UNSPSC Code 25172504(Automobile or light truck tires)