ASTM D153 – Standard Test Methods for Specific Gravity of Pigments
Description:
Abstract
These test methods cover three procedures for determining the specific gravity of pigments, as follows: Test Method A which is for routine testing of several samples simultaneously, Test Method B which is for tests requiring greater accuracy than Test Method A, and Test Method C which is for rapid and accurate testing of single samples. The specific gravity value obtained by these procedures may be used with the weight of a dry pigment to determine the volume occupied by the pigment in a coating formulation. For Test Method A, the following apparatus and materials shall be used: pycnometer, water bath, manometer, desiccator, vacuum pumps, thermometer, weighing bottle, and immersion liquid. For Test Method B, the following apparatus and materials shall be used: pycnometer, water bath, manometer, vacuum pump, thermometer, weighing bottle, bell jar, and bottle. For Test Method C, the following apparatus and materials shall be used: buret, flask, stopcocks, vacuum pump, manometer, thermometer, weighing bottle, and immersion liquid.
Scope
1.1 These test methods cover three procedures for determining the specific gravity of pigments, as follows:
Test Method A—For Routine Testing of Several Samples Simultaneously.
Test Method B—For Tests Requiring Greater Accuracy than Test Method A.
Test Method C—For Rapid and Accurate Testing of Single Samples.
1.2 The specific gravity value obtained by these procedures may be used with the weight of a dry pigment to determine the volume occupied by the pigment in a coating formulation.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
ASTM D1525