significance And Use:

scope:

1.1 This test method covers testing sizes of coarse aggregate larger than 19 mm (³/₄ in.) for resistance to degradation using the Los Angeles testing machine (Note 1).

Note 1: A procedure for testing coarse aggregate smaller than 37.5 mm (1¹/₂ in.) is covered in Test Method C131/C131M.

1.2 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are for information only.

1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This 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.