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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
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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

PUBLISH DATE 1981
ISO 1388-9:1981

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.

SDO ISO: International Organization for Standardization
Document Number ISO 1388
Publication Date Dec. 1, 1981
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 47
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