ASTM D2244-2007 仪器测量颜色坐标中允许色差和色差的计算用标准实施规程

标准号：ASTM D2244-2007
中文标准名称：仪器测量颜色坐标中允许色差和色差的计算用标准实施规程
英文标准名称：Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
标准类型：A26
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：A26
国际标准分类号：17.180.20 (Colours and measurement of light)
适用范围：1.1 This practice covers the calculation, from instrumentally measured color coordinates based on daylight illumination, of color tolerances and small color differences between opaque specimens such as painted panels, plastic plaques, or textile swatches. Where it is suspected that the specimens may be metameric, that is, possess different spectral curves though visually alike in color, Practice D 4086 should be used to verify instrumental results. The tolerances and differences determined by these procedures are expressed in terms of approximately uniform visual color perception in CIE 1976 CIELAB opponent-color space