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

Publication date: 1 nën 1981

General information

Current stage: 90.93 Effective date: 15 mar 2018

Originator: ISO

Owner: ISO/TC 47

Type: International Standard

ICS: 71.080.60

Gjuha: frëngjisht anglisht

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Statusi: Publikuar

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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

Revises
ISO/R 1388:1970

NOW

PUBLISHED
ISO 1388-8:1981
90.93 Standard confirmed
15 mar 2018

National adoptions

SSH ISO 1388-8:1981

DPS

Etanol për përdorim industrial - Metodat e provës - Pjesa 8: Përcaktimi i permbajtjes të metanolit (përmbajtjet e metanolit ndërmjet 0,10 dhe 1,50 % (V/V)) - Metoda kolorimetrike pamore

60.60 Standard published

DPS/KT 47 më tepër

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