【国外标准】 Standard Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese

3.1 These test methods compile in one place, recommended procedures for analyzing inorganic colored pigments. These pigments are used extensively in paints, and for this reason their compositions are important to the formulators and user.1.1 These test methods cover procedures for the chemical analysis of yellow, orange, red, and brown pigments containing iron and manganese. The test methods apply specifically to the following pigments: synthetic hydrated yellow iron oxide, yellow ocher, red and brown iron oxides, raw and burnt umber, raw and burnt sienna, and venetian red.1.2 The analytical procedures appear in the following order:    ASTM    Method    Refer-Dry Pigments  Sections encesMoisture and Other Volatile Matter  6  D280Loss on Ignition  7  Coarse Particles  8  D185Matter Soluble in Water  9  D1208Organic Coloring Matter 10  Iron Oxide 11 and 12  Calcium Compounds (Reported as CaO) 13 and 14  Sulfates Soluble in Hydrochloric Acid 15 and 16  Lead Chromate (in Ochers) 17  Calcium Carbonate (in Venetian Red) 18  C25Manganese (in Siennas and Umbers) 19 and 20   Pigment Pastes in Oil     Pigment Content 21  D1208Moisture and Other Volatile Matter 22  D1208Nonvolatile Matter in Vehicle 23  Moisture by Distillation 24  D1208Coarse Particles and Skins 25  D185Consistency (Stormer) 26  D5621.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.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 us.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.