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ISO 1388-11:1981 Ethanol for industrial use -- Methods of test -- Part 11 : Test for detection of furfural
standard by International Organization for Standardization, 12/01/1981
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The principle consists in the treatment of a test portion with aniline and acetic acid, the presence of furfural leading to the formation of a characteristic red colour. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.