Historical
ASTM C142-97
Standard Test Method for Clay Lumps and Friable Particles in Aggregates
This test method covers the approximate determination of clay lumps and friable particles in aggregates. 1.2 This standard does not purport to address the safety problems 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.
ASTM International [astm]