scope:

This method covers the sample preparation and polishing of unbound aggregates for dynamic friction testing using a three-wheel polishing device (TWPD).

The values stated in SI units are to be regarded as the standard.

This standard does not purport to address all the safety concerns associated with its use. It is the responsibility of the user of this procedure to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to its use.