Reference number
ISO 1388-9:1981
International Standard
ISO 1388-9:1981
Ethanol for industrial use — Methods of test — Part 9: Determination of esters content — Titrimetric method after saponification
Edition 1
1981-12
Read sample
ISO 1388-9:1981
5951
Published (Edition 1, 1981)
This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 1388-9:1981

ISO 1388-9:1981
5951
Language
Format
CHF 42
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Abstract

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.

General information

  •  : Published
     : 1981-12
    : International Standard confirmed [90.93]
  •  : 1
     : 3
  • ISO/TC 47
    71.080.60 
  • RSS updates

Life cycle

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