ISO 2211:1973 (R2021)
Active , Reaffirmed Standard
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ISO 2211:1973 (R2021)

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

Summary

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.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 10/01/1973
Confirmation Date 07/09/2021
Edition 1
Page Count 2
EAN ---
ISBN ---
Weight (in grams) ---
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