1.1 This specification covers six types of commercially pure lead chromate pigments as follows: Type I -Primrose Chrome Yellow, Type II -Lemon Chrome Yellow, Type III -Medium Chrome Yellow, Type IV -Light Chrome Orange, Type V -Dark Chrome Orange, and Type VI -Chrome Yellow for Green.

1.2 The following hazard caveat applies to the test method portion of this specification only. 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.