ISO 2211:1973
$13.00
Liquid chemical products — Measurement of colour in Hazen units (platinum-cobalt scale)
| Published By | Publication Date | Number of Pages |
| ISO | 1973-10 | 4 |
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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