1.1 This classification pertains to alumina and alumina-silicate castable refractories that, when tempered with water, will develop structural strength by chemical action.

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

1.3 This standard does not purport to address the safety concerns, 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.