ISO 787-3:2000 "General test methods for pigments and fillers, Part 3: Determination of substances soluble in water - Thermal extraction method" specifies a general test method for determining the mass percentage of substances soluble in boiling water in pigments or fillers. This method uses thermal extraction techniques to quantify the water-soluble components in a sample to ensure quality control and conformity of pigments and fillers. Thermal extraction can provide different results than cold extraction, so the method used should be clearly stated when used. This standard applies to a wide range of pigments and fillers and can be referenced in conjunction with relevant parts of the Miscellaneous ISO 787 series of standards where appropriate to meet the inspection needs of specific materials.
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