【国外标准】 Standard Test Methods for Chemical Analysis of White Lead Pigments

3.1 These test methods are suitable for determining the level of purity and for determining the levels of various impurities. They may be used to establish compliance with specification requirements.1.1 These test methods cover procedures for the chemical analysis of basic carbonate white lead and basic sulfate white lead.NOTE 1: If it is necessary to separate these pigments from others, refer to Practice D215.1.2 The analytical procedures appear in the following order:  Section Preparation of Sample  6Basic Carbonate White Lead:   Small Amounts of Iron  7 Total Lead  8 Moisture and Other Volatile Matter  9 Carbon Dioxide (Evolution Method) 10 Carbon Dioxide and Combined Water (Combustion Method) 11 Lead Carbonate 12 Total Matter Insoluble in Acetic Acid 13 Total Matter Insoluble in Acid Ammonium Acetate 14 Total Impurities Other Than Moisture 15 Coarse Particles 16Basic Sulfate White Lead:   Small Amounts of Iron 17 Total Lead   Moisture and Other Volatile Matter 19 Total Sulfate 20 Zinc Oxide 21 Basic Lead Oxide 22 Total Impurities 23 Coarse Particles 241.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.