标准编号：ISO 6271-2:2004
中文名称：透明液体.用铂钴色标评定色度.第2部分：分光光度法
英文名称：Clear liquids — Estimation of colour by the platinum-cobalt scale — Part 2: Spectrophotometric method
发布日期：2004-11
标准范围
This part of ISO 6271 specifies a spectrophotometric method for estimating the colour, in Pt-Co units, of clear liquids. It is applicable to clear liquids having a colour characteristic similar to those of the reference platinum-cobalt scale specified in ISO 6271-1.The method described provides a more precise way of measuring Pt-Co colour than that described in ISO 6271-1.NOTE The term "platinum-cobalt colour (Pt-Co colour)" used here is preferred over the terms "Hazen colour" and "APHA colour".
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