General methods of test for pigments and extenders - Part 17: Comparison of lightening power of white pigments
Document Number: ISO 787-17:2002 File Size: 243 kB Language: English Provider: ANSI Shipping: Available for download - Link will be provided in My ComplianceOnline section
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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.
