BS EN ISO 8781-1:1995 Pigments and extenders. Methods of assessment of dispersion characteristics. Assessment from the charge in tinting strength of coloured pigments
1995BS EN ISO 8781-1:1995 Pigments and extenders. Methods of assessment of dispersion characteristics. Assessment from the charge in tinting strength of coloured pigments
1991BS EN ISO 8781-1:1991 Pigments and extenders. Methods of assessment of dispersion characteristics. Assessment from the charge in tinting strength of coloured pigments