1.1 This test method covers the procedures for determining the consistency of a castable using the Ball-in-Hand Test. The amount of water used in a castable has a significant influence on its performance.

1.2 This test method applies to regular weight castable refractories and insulating castable refractories which are described in Classification C401. It also applies to such castables containing metal fibers.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (See 6.2.3 for a specific safety warning.)