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ASTM F 421 : 2015 : R2021


The latest, up-to-date edition.

Standard Test Method for Measuring Groove and Void Depth in Passenger Car Tires
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Published date


1.1This test method describes standard procedures for measuring the groove and void depth in passenger car tires.

1.2Any mechanical, optical, or electronic device capable of measuring groove (void) depth can be used, but only the contact methodology is described here. Noncontact methodology is beyond the scope of this test method.

1.3The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.4This 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.

1.5This 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.

F 09
Test Method
American Society for Testing and Materials

ASTM F 762/F762M : 2008 : R2020 : EDT 1 Standard Test Method for Determining Change in Groove (or Void) Depth With Distance Traveled for Passenger Car Tires
ASTM F 1502 : 2005 : R2016 Standard Test Method for Static Measurements on Tires for Passenger Cars, Light Trucks, and Medium Duty Vehicles
ASTM F 1016 : 2007 : R2020 Standard Practice for Linear Tire Treadwear Data Analysis
ASTM F 1046 : 2001 : R2015 Standard Guide for Preparing Artificially Worn Passenger and Light Truck Tires for Testing

ASTM F 538 : 2013 Standard Terminology Relating to the Characteristics and Performance of Tires
ASTM F 538 : 2022 Standard Terminology Relating to Characteristics and Performance of Tires
ASTM F 538 : 2021 Standard Terminology Relating to Characteristics and Performance of Tires

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