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Glavni meni

ISO 1388-9:1981

Ethanol for industrial use — Methods of test — Part 9: Determination of esters content — Titrimetric method after saponification
1. 12. 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 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.

Životni ciklus

PRETHODNO

POVUČEN
ISO/R 1388:1970

TRENUTNO

OBJAVLJEN
ISO 1388-9:1981
90.93 Odluka o potvrđivanju standarda
29. 11. 2023.

Nacionalna preuzimanja

Etanol za industrijsku upotrebu — Metode ispitivanja — Deo 9: Određivanje sadržaja estara — Volumetrijska metoda posle saponifikacije

90.93   Odluka o potvrđivanju standarda

Etanol za industrijsku upotrebu - Određivanje sadržaja estra (kao etilacetat) - Volumetrijska metoda

95.99   Povučen