SS-EN-ISO-6271-2 › Clear liquids - Estimation of colour by the platinum-cobalt scale - Part 2: Spectrophotometric method (ISO 6271-2:2004)
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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 platinumcobalt 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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SS-EN ISO 6271-2:2004
Dec. 10, 2004
ISO 6271-2:2004(IDT); EN ISO 6271-2:2004(IDT)