Abstract
The principle consists in treatment of a test portion with sufphuric acid solution under specified conditions, comparison of the colour developed with that of the same volume of an agreed colour standard. By agreement between the interested parties, the colour developed may be measured in Hazen units (platinum-cobalt scale).
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Status: WithdrawnPublication date: 1981-09
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Edition: 1Number of pages: 3
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- ICS :
- 71.080.60 Alcohols. Ethers
Life cycle
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Previously
WithdrawnISO/R 755:1968
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Now
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