DS DS/EN ISO 787-15
DS DSEN SO 787-15 1995-SEP-06 General methods of test for pgments and extenders - Part 15 Comparson of resstance to lght of coloured pgments of smlar types
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This part of EN ISO 787 describes a general method of test for comparing the resistance to light of samples of similar types of coloured pigments (agreed reference pigment and test sample).