Objavljen
The principle is based on the addition of a test portion, under specified conditions, of potassium permanganate solution. Determination of the time taken for the colour of this test solution to match that of a cobalt(II) chloride and uranyl nitrate colour standard. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.
POVUČEN
ISO/R 1388:1970
OBJAVLJEN
ISO 1388-12:1981
90.93
Odluka o potvrđivanju standarda
29. 11. 2023.
Etanol za industrijsku upotrebu — Metode ispitivanja — Deo 12: Određivanje vremena redukcije rastvora kalijum-permanganata
90.93 Odluka o potvrđivanju standarda
Etanol za industrijsku upotrebu - Određivanje vremena redukcije rastvora kalijum-permanganata na 15 °C - Kolorimetrijska metoda
95.99 Povučen