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ISO 1388-12:1981
M00000134
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ISO 1388-12:1981 Ethanol for industrial use -- Methods of test -- Part 12 : Determination of permanganate time
standard by International Organization for Standardization, 12/01/1981
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The principle is based on the addition of a test portion, under specified conditions, of potassium permanganate solution. Determination of the time taken for the colour of this test solution to match that of a cobalt(II) chloride and uranyl nitrate colour standard. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.