標準號：ASTM D2244-2007
中文標準名稱：儀器測量顏色坐標中允許色差和色差的計算用標準實施規程
英文標準名稱：Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
標準類型：A26
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：A26
國際標準分類號：17.180.20 (Colours and measurement of light)
適用范圍：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