This test method allows detection within 16 days of the potential for deleterious expansion of mortar bars due to the alkali-silica reaction. This standard may involve hazardous materials@ operations@ and equipment. This standard does not purport to address all of the safety concerns 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 specific precautionary statement is given in Note 3. The values stated in SI units are to be regarded as standard. The values in inch?Cpound units are shown in parentheses@ and are for informational purposes only.