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This standard provides guide to evaluation and testing of color, color difference, gloss, metamerism, and miscellaneous optical properties of optical powder coatings by both visual and instrumental means. Visual evaluation of optical properties shall include visual gloss test method, Munsell Color Order System, and ASTM test standards indicated in the specification. Instrumental evaluation of optical properties shall include specular gloss test, filter photometry, reflection haze, fluorescence, and ASTM test standards indicated in the specification.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This standard provides the user with a guide to the various available practices and test methods for the evaluation of color, color difference, gloss, and metamerism by both visual and by instrumental means.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D523 Test Method for Specular Gloss
D1535 Practice for Specifying Color by the Munsell System
D1729 Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
D2616 Test Method for Evaluation of Visual Color Difference With a Gray Scale
D3134 Practice for Establishing Color and Gloss Tolerances
D4039 Test Method for Reflection Haze of High-Gloss Surfaces
D4086 Practice for Visual Evaluation of Metamerism
D4449 Test Method for Visual Evaluation of Gloss Differences Between Surfaces of Similar Appearance
D5767 Test Methods for Instrumental Measurement of Distinctness-of-Image Gloss of Coating Surfaces
E284 Terminology of Appearance
E308 Practice for Computing the Colors of Objects by Using the CIE System
E430 Test Methods for Measurement of Gloss of High-Gloss Surfaces by Abridged Goniophotometry
E1247 Practice for Detecting Fluorescence in Object-Color Specimens by Spectrophotometry
E1331 Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry
E1345 Practice for Reducing the Effect of Variability of Color Measurement by Use of Multiple Measurements
E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
E1349 Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45:0 or 0:45) Geometry
E1360 Practice for Specifying Color by Using the Optical Society of America Uniform Color Scales System
E1541 Practice for Specifying and Matching Color Using the Colorcurve System
ICS Number Code 25.220.20 (Surface treatment)
UNSPSC Code 46181533(Protective coats)