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More D20.40 Standards Related Products Standard References
Significance and Use
4.1 Specular gloss is used primarily as a measure of the shiny appearance of films and surfaces. Precise comparisons of gloss values are meaningful only when they refer to the same measurement procedure and same general type of material. In particular, gloss values for transparent films should not be compared with those for opaque films, and vice versa. Gloss is a complex attribute of a surface which cannot be completely measured by any single number.
4.2 Specular gloss usually varies with surface smoothness and flatness. It is sometimes used for comparative measurements of these surface properties.
1. Scope
1.1 This test method describes procedures for the measurement of gloss of plastic films and solid plastics, both opaque and transparent. It contains four separate gloss angles (Note 1):
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C346 Test Method for 45-deg Specular Gloss of Ceramic Materials
D523 Test Method for Specular Gloss
D3679 Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding
E284 Terminology of Appearance
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
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
ICS Code
ICS Number Code 83.140.10 (Films and sheets)
UNSPSC Code
UNSPSC Code 13111200(Films)
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DOI: 10.1520/D2457-13
Citation Format
ASTM D2457-13, Standard Test Method for Specular Gloss of Plastic Films and Solid Plastics, ASTM International, West Conshohocken, PA, 2013, www.astm.org
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