Mainfactors are as follows: standard solution, regressive curve, parallel experiment of sample, diacetyl monoxide's reagent colorimetric method, spectrophotometer, sampling, etc.

影响测定结果的分量主要有：标准溶液、回归曲线、样品平行试验、二乙酰一肟分光光度法、分光光度计、取样等。

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This standard set with platinum - cobaltic standard solution is standard quality, with visual the current method that colorimetric law measures calm chroma.

本标准规定了以铂-钴标准溶液为标准色，用目视比色法测定色度的通用方法。

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