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ISO 2211:1973

Liquid chemical products — Measurement of colour in Hazen units (platinum-cobalt scale) ISO 2211:1973

Publication date:   Oct 1, 1973

General information

90.93 Standard confirmed   Jul 9, 2021

ISO

ISO/TC 47 Chemistry

International Standard

71.040.50   Physicochemical methods of analysis

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Published

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Scope

Applicable only to clear, slightly coloured liqids. Such colour characteristics are described as brownish-yellow. The principle is based on a visual comparison of the colour of a sample with that of colour standards. The results are expressed in terms of the platinum-cobalt scale. For routine control purposes a comparator, colorimeter or spectrophotometer may be used, if the values so obtained are identical with those obtained by visual comparison.

Life cycle

NOW

PUBLISHED
ISO 2211:1973
90.93 Standard confirmed
Jul 9, 2021