Ethanol for industrial use -- Methods of test -- Part 5 : Determination of aldehydes content -- Visual colorimetric method

Document Number: ISO 1388-5:1981
File Size: 273 kB
Language: English
Provider: ANSI
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The method is applicable to products having aldehyde contents in the range 0.00025 % (m/m) to 0.00125 % (m/m). The principle is based on the reaction of the aldehydes present in a test portion with Schiff reagent. Visual comparison of the colour obtained with the colours of standard colorimetric solutions containing known quantities of acetaldehyde. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.

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