ASTM-D4838 › Historical Revision Information
Standard Test Method for Determining the Relative Tinting Strength of Chromatic Paints
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1.1 This test method describes the determination of the absorption tinting strength of a chromatic test paint relative to that of a standard or reference paint of the same chemical type. The procedures are based on dilution of the paints with a standard mixing white paint, followed by instrumental measurement and calculation. Provision is made for correcting the results for small differences in hue or chroma, or both, between the test and reference chromatic paints.
1.2 This test method is intended for the comparison of paints containing the same type of vehicle (acrylic, alkyd, or oil) and single-pigment colorants of the same Colour Index name and number. The amounts of the pigment and of the other components of the paint need not be known.
1.3 This standard does not purport to address all of the safety problems 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.
Absorptive coatings; Artists' paints; Chromate coatings; Coatings-chromate; Color-paints/related coatings/materials; Latex paints; Pigments (general properties); Solvent-reducible paints/coatings; Tinting strength; relative tinting strength of chromatic paints, test
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1988 R98 EDITION
June 24, 1988