物理安全检测
ASTM D2457塑料薄膜和固态塑料镜面光泽的标准试验方法
ASTM D2457塑料薄膜和固态塑料镜面光泽的标准试验方法—标准名称
ASTM D2457 Standard Test Method for Specular Gloss of Plastic Films and Solid Plastics
ASTM D2457塑料薄膜和固态塑料镜面光泽的标准试验方法
ASTM D2457塑料薄膜和固态塑料镜面光泽的标准试验方法—适用范围
Scope：
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.
ASTM D2457塑料薄膜和固态塑料镜面光泽的标准试验方法—引用文件
ASTM C346 Test Method for 45-deg Specular Gloss of Ceramic Materials
ASTM D523 Test Method for Specular Gloss
ASTM D3679 Specification for Rigid Poly (Vinyl Chloride) (PVC) Siding
ASTM E284 Terminology of Appearance
ASTM E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E1347 Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
ASTM E1349 Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45°:0° or 0°:45°) Geometry
----------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------
