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Standard Test Methods for Specific Gravity of Coating Powders
Automaticky přeložený název:
Standardní Zkušební metody pro měrné hmotnosti práškové barvy
NORMA vydána dne 1.6.2013
Označení normy: ASTM D5965-02(2013)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.6.2013
Kód zboží: NS-33227
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
coating powders, density, metallics, powder coatings, pycnometer, specific gravity, ICS Number Code 87.040 (Paints and varnishes)
Significance and Use | ||||||
4.1 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. 4.2 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. 4.3 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. |
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1. Scope | ||||||
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). 1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.7 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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2. Referenced Documents | ||||||
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