1.1本规程提供了从物体颜色样本的光谱反射率、透射率或辐射度数据中获得CIE三刺激值所需的值和实际计算程序。 1.2给出了根据光谱测量计算CIE三刺激值的程序和标准值表 十、 CIE 1931标准观测器的Y、Z和色度坐标X、Y和X 10 Y 10 Z 10 和x 10 . y 10 对于CIE 1964补充标准观察员。 1.3标准值包括六种CIE标准光源和三种CIE推荐荧光光源的光谱功率。 1.4包括以下情况的程序:数据仅在比建议的波长范围更有限的波长范围内可用，或测量间隔比CIE建议的更宽。本规程适用于根据规程E 1164和1获得的光谱数据- ，5、10或20 nm测量间隔。 1.5对于光谱数据和未进行带通相关性校正的情况，包括程序。对于未校正的情况，假设用于获取数据的仪器的光谱带通近似等于测量间隔，并且呈三角形。据信，这些选择符合最广泛使用的工业实践。 1.6本规程包括将结果转换为CIE系统（如CIELAB和CIELUV）中的颜色空间的程序 (3) . 试验方法D 2244中给出了计算这些系统和其他系统中色差的方程式。 1.7 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This practice provides the values and practical computation procedures needed to obtain CIE tristimulus values from spectral reflectance, transmittance, or radiance data for object-color specimens. 1.2 Procedures and tables of standard values are given for computing from spectral measurements the CIE tristimulus values X, Y, Z, and chromaticity coordinates x, y for the CIE 1931 standard observer and X 10 , Y 10 , Z 10 and x 10 . y 10 for the CIE 1964 supplementary standard observer. 1.3 Standard values are included for the spectral power of six CIE standard illuminants and three CIE recommended fluorescent illuminants. 1.4 Procedures are included for cases in which data are available only in more limited wavelength ranges than those recommended, or for a measurement interval wider than that recommended by the CIE. This practice is applicable to spectral data obtained according to Practice E 1164 with 1-, 5-, 10-, or 20-nm measurement interval. 1.5 Procedures are included for cases in which the spectral data are, and those in which they are not, corrected for bandpass dependence. For the uncorrected cases, it is assumed that the spectral bandpass of the instrument used to obtain the data was approximately equal to the measurement interval and was triangular in shape. These choices are believed to correspond to the most widely used industrial practice. 1.6 This practice includes procedures for conversion of results to color spaces that are part of the CIE system, such as CIELAB and CIELUV (3) . Equations for calculating color differences in these and other systems are given in Test Method D 2244. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.