ASTM D6280-98(2020) - 1.6.2020
 
1. Scope

1.1 This specification covers three types of pigments commercially known as zinc phosphate each of which may or may not be available in specific grades delineated by particle size or oil absorption.

1.1.1 Type I—Zinc Phosphate, dihydrate predominant.

1.1.2 Type II—Zinc Phosphate, dihydrate tetrahydrate mixture.

1.1.3 Type III—Zinc Phosphate, tetrahydrate predominant.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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.

 
2. Referenced Documents

D1210-05(2022)

Standard Test Method for Fineness of Dispersion of Pigment-Vehicle Systems by Hegman-Type Gage

D153-84(2020)

Standard Test Methods for Specific Gravity of Pigments

D185-07(2023)

Standard Test Methods for Coarse Particles in Pigments

D280-01(2023)

Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments

D281-12(2021)

Standard Test Method for Oil Absorption of Pigments by Spatula Rub-out

D1193-24

Standard Specification for Reagent Water

D1208-96(2019)

Standard Test Methods for Common Properties of Certain Pigments

D2448-85(2025)

Standard Test Method for Water-Soluble Salts in Pigments by Measuring the Specific Resistance of the Leachate of the Pigment