This specification covers three grades of pigment commercially known as calcium borosilicate composite pigment. The two types differ in chemical composition while the two classes of type I differ in oil absorption. The chemical composition, ignition loss, and particle size shall be tested to meet the requirements prescribed. The specific surface diameter of the pigment, oil absorption, and coarse particle shall be tested to meet the requirements prescribed.
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1.1 This specification covers three grades of pigment commercially known as calcium borosilicate composite pigment. The two types differ in chemical composition while the two classes of Type I differ in oil absorption.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C958 Test Method for Particle Size Distribution of Alumina or Quartz by X-Ray Monitoring of Gravity Sedimentation
D185 Test Methods for Coarse Particles in Pigments
D281 Test Method for Oil Absorption of Pigments by Spatula Rub-out
D1366 Practice for Reporting Particle Size Characteristics of Pigments
D3360 Test Method for Particle Size Distribution by Hydrometer of the Common White Extender Pigments
D4487 Test Methods for Analysis of Calcium Borosilicate
alkaline earth silicates; borates; calcium borosilicate; pigment; silicates;
ICS Number Code 87.060.10 (Pigments and extenders)
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