Standard Test Methods for Specific Gravity of Coating Powders
1.1 These test methods cover three procedures for determining the specific gravity (see definition) of coating powders, as follows:
1.2 Test Method A can be used as a less expensive method with reduced accuracy for determining the specific gravity of coating powders, excluding metallics.
1.3 The ideal gas law forms the basis for all calculations used in the Test Method B determination of density of coating powders.
1.4 Test Method B includes procedures that provided acceptable results for samples analyzed during round robin testing.
1.5 Test Method B uses SI units as standard. State all numerical values in terms of SI units unless specific instrumentation software reports surface area using alternate units. Many instruments report density as g/cm3, instead of using SI units (kg/m3).
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