This practice covers sampling of coarse and fine aggregates for the following purposes:Preliminary investigation of the potential source of supply@Control of the product at the source of supply@Control of the operations at the site of use@ andAcceptance or rejection of the materials.NOTE 1--Sampling plans and acceptance and control tests vary with the type of construction?in which the material is used. Attention is directed to Practices E 105 and D 3665.The values stated in inch-pound units are to be regarded as the standard.This standard does not purport to address all of the safety problems@ 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.A Summary of Changes section appears at the end of this practice.