International Standard
ISO 2211:1973
Liquid chemical products — Measurement of colour in Hazen units (platinum-cobalt scale)
Reference number
ISO 2211:1973
Edition 1
International Standard
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ISO 2211:1973
Published (Edition 1, 1973)
This standard was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO 2211:1973

ISO 2211:1973
CHF 42
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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.

General information

  •  : Published
     : 1973-10
    : International Standard confirmed [90.93]
  •  : 1
     : 2
  • ISO/TC 47
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