ISO 1388-5:1981

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

Publication date: Dec 1, 1981

General information

Current stage: 90.20 Effective date: Jan 15, 2023

Originator: ISO

Owner: ISO/TC 47

Type: International Standard

ICS: 71.080.60

Languages: French English

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Status: Published

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Scope

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.

Life cycle

PREVIOUSLY

Revises
ISO/R 1388:1970

NOW

PUBLISHED
ISO 1388-5:1981
90.20 Standard under periodical review
Jan 15, 2023

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