This test method has been developed to standardize the chemical analysis of zinc chromate yellow pigment and to provide alternate methods of analysis for chromium and zinc.
Область применения1.1 These test methods cover procedures for the chemical analysis of the pigment known commercially as “zinc yellow” or “ zinc chromate yellow.”
1.2 The analytical procedures appear in the following order:
Sections Moisture and Other Volatile Matter7 Combined Water8 Chromium: Dichromate Method 9-11 Thiosulfate Method9, 12, and 13 Zinc: Hydroxyquinoline Method9, 14, and 15 Ferrocyanide Method9, 16, and 17 Alkaline Salts18 and 19 Sulfates20 and 21 Chlorides22 and 23 Matter Insoluble in Dilute Acetic1.3 The values stated in SI units are to be considered 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.