ISO 787-17:2002

General methods of test for pigments and extenders — Part 17: Comparison of lightening power of white pigments ISO 787-17:2002

Publication date:   Jul 18, 2002

Scope

This part of ISO 787 specifies a general method of test for comparing the lightening (reducing) power of a white pigment with the lightening power of an agreed sample of the same type.
Two procedures (A and B) are described. Procedure A is quicker than procedure B and is suitable for testing one sample of pigment; procedure B is better for testing several samples, and especially if a pigment of unknown lightening power is being tested.