1.1 本规程提供了获得三刺激值（指定为X、Y、Z和X）所需的数值和实际计算程序 10 Y 10 Z 10 分别用于CIE 1931和1964观测者。获取此类双光谱光度数据的程序包含在《实施规程》中 2015年2月 。 1.2 将结果转换为CIE系统的颜色空间的程序，如CIELAB和CIELUV，包含在实践中 2008年3月 。 1.3 本标准可能涉及危险材料、操作和设备。本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 双谱或双单色仪法是测定荧光样品一般辐射转移特性的决定性方法 ( 2. ) 在这种方法中，测量仪器配备了两个独立的单色仪。第一种是照射单色仪，用单色光照射样品。第二个，观察单色仪，分析离开样本的辐射。通过将辐射单色仪设置在一系列固定波长，可以获得双光谱光度值的二维阵列 （μ） 在紫外线和可见光范围内，对于每个μ，使用观察单色仪记录每个波长的读数 （λ） 在可见范围内。得到的数组，一旦正确校正，就被称为唐纳森矩阵，每个元素的值 （μ，λ） 这个阵列的辐射因子在这里被描述为唐纳森辐射因子 （D（μ，λ）） 唐纳森辐射因子是样品的与仪器和光源无关的光度特性，并且可以用于计算任何所需光源和观察者的颜色。这种方法的优点是，它提供了样品辐射传输特性的全面表征，而没有与源模拟和各种近似方法相关的不准确度。

1.1 This practice provides the values and practical computation procedures needed to obtain tristimulus values, designated X, Y, Z and X 10 , Y 10 , Z 10 for the CIE 1931 and 1964 observers, respectively, from bispectral photometric data for the specimen. Procedures for obtaining such bispectral photometric data are contained in Practice E2153 . 1.2 Procedures for conversion of results to color spaces that are part of the CIE system, such as CIELAB and CIELUV are contained in Practice E308 . 1.3 This standard may involve hazardous materials, operations, and equipment. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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. ====== Significance And Use ====== 5.1 The bispectral or two-monochromator method is the definitive method for the determination of the general radiation-transfer properties of fluorescent specimens ( 2 ) . In this method, the measuring instrument is equipped with two separate monochromators. The first, the irradiation monochromator, irradiates the specimen with monochromatic light. The second, the viewing monochromator, analyzes the radiation leaving the specimen. A two-dimensional array of bispectral photometric values is obtained by setting the irradiation monochromator at a series of fixed wavelengths (μ) in the ultraviolet and visible range, and for each μ, using the viewing monochromator to record readings for each wavelength (λ) in the visible range. The resulting array, once properly corrected, is known as the Donaldson matrix, and the value of each element (μ,λ) of this array is here described as the Donaldson radiance factor (D(μ,λ)) . The Donaldson radiance factor is an instrument- and illuminant-independent photometric property of the specimen, and can be used to calculate its color for any desired illuminant and observer. The advantage of this method is that it provides a comprehensive characterization of the specimen’s radiation-transfer properties, without the inaccuracies associated with source simulation and various methods of approximation.