1.1 This guide is intended for use in selecting terminology, measurement scales, and instrumentation for describing or evaluating such appearance characteristics as glossiness, opacity, lightness, transparency, and haziness in terms of reflected or transmitted light. This guide does not consider the spectral variations responsible for color, but the geometric variables described herein can importantly affect instrumentally measured values of color. This guide is general in scope rather than specific as to instrument or material.
1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM E179-17(2022) Referenced Document
ASTM C346 Standard Test Method for 45-deg Specular Gloss of Ceramic Materials
ASTM C347 Method of Test for Reflectivity and Coefficient of Scatter of White Porcelain Enamels
ASTM C523 Method of Test for Light Reflectance of Acoustical Materials by the Integrating Sphere Reflectometer
ASTM C584 Standard Test Method for Specular Gloss of Glazed Ceramic Whitewares and Related Products
ASTM D1003 Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics
ASTM D1455 Standard Test Method for 60&xb0; Specular Gloss of Emulsion Floor Polish
ASTM D1494 Standard Test Method for Diffuse Light Transmission Factor of Reinforced Plastics Panels
ASTM D1746 Standard Test Method for Transparency of Plastic Sheeting
ASTM D1834 Standard Test Method for 20o Specular Gloss of Waxed Paper
ASTM D4039 Standard Test Method for Reflection Haze of High-Gloss Surfaces
ASTM D4061 Standard Test Method for Retroreflectance of Horizontal Coatings