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ISO 1388-9:1981

Ethanol for industrial use — Methods of test — Part 9: Determination of esters content — Titrimetric method after saponification

Dec 1, 1981

General information

90.93     Nov 29, 2023

ISO

ISO/TC 47

International Standard

71.080.60  

French   English  

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Published

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Scope

The method is applicable to products having esters contents in the range 0.005 % (m/m) to 0.15 % (m/m). The principle consists in the saponification of esters present in a test portion by boiling with excess standard volumetric sodium hydroxide solution; determination of the residual sodium hydroxide, and hence the amount used for saponification, by titration with standard volumetric hydrochloric acid solution in the presence of phenolphthalein as indicator. - 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WITHDRAWN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 1388-9:1981
90.93 Standard confirmed
Nov 29, 2023

National adoptions

SRPS ISO 1388-9:2014  
ISS

Ethanol for industrial use — Methods of test — Part 9: Determination of esters content — Titrimetric method after saponification

90.93   Standard confirmed

H047 more

SRPS H.B8.233:1988  
ISS

Ethanol for industrial use — Methods of test — Part 9: Determination of esters content — Titrimetric method after saponification

95.99   Withdrawal of Standard

H047 more