ISO 2211:1973 Preview

Liquid chemical products -- Measurement of colour in Hazen units (platinum-cobalt scale)

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

  • Current status : Published
    Publication date : 1973-10
  • Edition : 1
    Number of pages : 2
  • :
    ISO/TC 47/SC 1
    General methods
  • 71.040.50
    Physicochemical methods of analysis

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