ISO-2211 › Liquid chemical products -- Measurement of colour in Hazen units (platinum-cobalt scale)
ISO-2211
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1ST EDITION
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CURRENT
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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.
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Document Number
ISO 2211:1973
Revision Level
1ST EDITION
Status
Current
Publication Date
Oct. 1, 1973
Committee Number
ISO TC 47/SC 1