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ISO 1388-2:1981

Ethanol for industrial use — Methods of test — Part 2: Detection of alkalinity or determination of acidity to phenolphthalein

Nov 1, 1981

General information

90.93     Mar 15, 2018

ISO

ISO/TC 47

International Standard

71.080.60  

French   English  

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Scope

The method is applicable to products having acidities equal to or greater than 0.0008 % (m/m). The principle consists in the dilution of a test portion with carbon dioxide-free water, checking whether the test solution is alkaline or acid to phenolphthalein, and, if appropriate, determination of the acidity by titration with standard volumetric sodium hydroxide solution. The acidity is expressed as a percentage by mass of acetic acid. - International Standards ISO 1388/1 to 1388/12 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 1388-2:1981
90.93 Standard confirmed
Mar 15, 2018

National adoptions

SSH ISO 1388-2:1981  
DPS

Ethanol for industrial use — Methods of test — Part 2: Detection of alkalinity or determination of acidity to phenolphthalein

60.60 Standard published

DPS/KT 47 more

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