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download between 0-24 hoursReleased: 2019
General methods of test for pigments and extenders - Part 17: Comparison of lightening power of white pigments
|Standard´s number:||ISO 787-17|
This document 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 specified. 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.