1.1 This specification covers lime and limestone products suitable for chemical and industrial uses as shown in . The type designations signify the following:

1.2 The buyer shall designate the use, as listed in , and may specify one or more of the type designations in .

1.3 This standard does not purport to address all of 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.

1.4 This test method covers the determination of the amount of free calcium oxide (CaO) in high-calcium hydrated lime capable of being hydrated by steam at atmospheric pressure.