概述了表征辐射计性能的程序，特别注意光度计。给出了评估最重要误差的定量方法。其中包括:*系统校准误差；*非标准光谱响应引起的误差；*非标准空间评估——辐照度（照度），——球面辐照度（照度），——圆柱辐照度（照度）或——辐射度（亮度）；*非线性；*疲劳；*温度系数。提出了判断不太重要方面重要性的方法。其中包括:*读取错误；*调制辐射的影响；*极化的影响；*非均匀响应；*探测器不稳定性；*零点漂移。本报告涉及光度和辐射测量仪器评估的一般问题。后面的报告中不包括个别类型仪器的数字要求。 该报告包括五种特殊光源的相对光谱分布表，可用于评估光度计头的V（λ）校正质量。CIE 69-1987《照度计和亮度计的表征方法》补充了本技术报告。该报告由30页、3个图表和1个表格组成。

Procedures are outlined for characterizing the performance of radiometers, with special attention to photometers. Quantitative methods are given for evaluating the most important errors. These include:* systematic calibration errors;* errors caused by non-standard spectral response;* non-standard spatial evaluation of--irradiance (illuminance),--spherical irradiance (illuminance),--cylindrical irradiance (illuminance) or--radiance (luminance);* non-linearity;* fatigue;* temperature coefficient.Ways of judging the significance of less important aspects are suggested. These include:* reading error;* effect of modulated radiation;* influence of polarization;* non-uniform response;* detector instability;* zero drift.The report deals with general problems of evaluation of photometric and radiometric instruments. Numerical requirements for individual types of instruments in later reports are not included.The report includes tables of the relative spectral distributions of five special sources that can be used to estimate the quality of the V(lambda) correction of photometer heads.This Technical Report has been supplemented by CIE 69-1987 Methods of Characterizing Illuminance Meters and Luminance Meters.The report consists of 30 pages, 3 figures and 1 table.