This test method covers the procedure for determining the relative resistance of fired fireclay and high alumina refractories to thermal shock conditions resulting from specified heating and cooling cycles. The equipment specified is based on test units currently in use at several industrial laboratories.

Formerly under the jurisdiction of Committee C08 on Refractories, this test method was withdrawn in May 2005 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

1.1 This test method covers the procedure for determining the relative resistance of fired fireclay and high alumina refractories to thermal shock conditions resulting from specified heating and cooling cycles. The equipment specified is based on test units currently in use at several industrial laboratories.

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

1.3 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.