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ISO 1388-8:1981

Ethanol for industrial use — Methods of test — Part 8: Determination of methanol content (methanol contents between 0,10 and 1,50 % (V/V)) — Visual colorimetric method

Nov 1, 1981

General information

90.93     Nov 29, 2023

ISO

ISO/TC 47

International Standard

71.080.60  

French   English  

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Scope

The principle is based on the conversion of the methanol present in a test portion to formaldehyde by oxidation with a solution of potassium permanganate in phosphoric acid. Reaction of the formaldehyde formed with Schiff reagent. Visual comparison of the colour obtained with the colours of standard colorimetric solutions containing known quantities of formaldehyde. - 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

WITHDRAWN
ISO/R 1388:1970

NOW

PUBLISHED
ISO 1388-8:1981
90.93 Standard confirmed
Nov 29, 2023

National adoptions

SRPS ISO 1388-8:2014  
ISS

Ethanol for industrial use — Methods of test — Part 8: Determination of methanol content (methanol contents between 0,10 and 1,50 % (V/V)) — Visual colorimetric method

90.93   Standard confirmed

H047 more

SRPS H.B8.239:1988  
ISS

Ethanol for industrial use — Methods of test — Part 8: Determination of methanol content (methanol contents between 0,10 and 1,50 % (V/V)) — Visual colorimetric method

95.99   Withdrawal of Standard

H047 more