White zinc pigments find considerable use in white paints, and as such it is useful to formulators and users to be able to monitor the amounts of these pigments in whole paints. It is also of interest to raw material suppliers and paint producers to check the specifications of each pigment.
Область применения1.1 These test methods cover procedures for the analysis of white zinc pigments.
1.2 The analytical procedures appear in the following order:
Section Preparation of Sample 6 Zinc Oxide Total Zinc, Using Diphenylamine as Internal Indicator 7 Total Zinc, Using Uranyl Acetate as External Indicator 8 Total Impurities 9 Total Sulfur10 Moisture and Other Volatile Matter11 Leaded Zinc Oxide Total Lead12 Total Zinc13 Total Sulfur14 Total Impurities15 Moisture and Other Volatile Matter16 Water-Soluble Salts17 Zinc Sulfide Zinc Oxide18 Zinc Sulfide19 Water-Soluble Salts20 Moisture and Other Volatile Matter21 Barium Sulfate22 Titanium Dioxide231.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.