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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
1. 11. 1981.

Опште информације

90.93     29. 11. 2023.

ISO

ISO/TC 47

Međunarodni standard

71.080.60  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
ISO/R 1388:1970

TRENUTNO

OBJAVLJEN
ISO 1388-2:1981
90.93 Odluka o potvrđivanju standarda
29. 11. 2023.