Standard Historical Last Updated: Dec 20, 2012 Track Document
ASTM D5965-02

Standard Test Methods for Specific Gravity of Coating Powders

Standard Test Methods for Specific Gravity of Coating Powders D5965-02 ASTM|D5965-02|en-US Standard Test Methods for Specific Gravity of Coating Powders Standard new BOS Vol. 06.02 Committee D01
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Significance and Use

Test Method A is a less expensive method of determining specific gravity of coating powders, excluding metallics, that produced less precise results than Test Method B.

Test Method B provides better precision at higher cost and includes metallics, although different models produced different grand averages for each of the three samples tested.

Test Method C is commonly used by the powder coating industry to estimate the coverage of a powder coating at a given thickness, using the theoretical specific gravity calculated from those of the raw materials.


1.1 These test methods cover three procedures for determining the specific gravity (see definition) of coating powders, as follows:

TEST METHOD A—For Testing Coating Powders, Excluding Metallics
TEST METHOD B—For Tests Requiring Greater Precision than Test Method A, Including Metallics, Using Helium Pycnometry
TEST METHOD C—For Theoretical Calculation Based on Raw Material Specific Gravities

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).

1.6 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 and health practices and determine the applicability of regulatory limitations prior to use.

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Book of Standards Volume: 06.02
Developed by Subcommittee: D01.51
Pages: 4
DOI: 10.1520/D5965-02
ICS Code: 87.040