Norm

ISO 1388-9:1981 en

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

31,57

Over deze norm

Status Definitief
Aantal pagina's 3
Gepubliceerd op 01-12-1981
Taal Engels
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.

Details

ICS-code 71.080.60
Nederlandse titel Ethanol for industrial use - Methods of test - Part 9: Determination of esters content - Titrimetric method after saponification
Engelse titel Ethanol for industrial use - Methods of test - Part 9: Determination of esters content - Titrimetric method after saponification

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