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ISO 2598-2:1992

Iron ores — Determination of silicon content — Part 2: Reduced molybdosilicate spectrophotometric method
10. 12. 1992.

Опште информације

90.93     30. 3. 2025.

ISO

ISO/TC 102/SC 2

Međunarodni standard

73.060.10  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

The method is based on decomposition of the test portion by fusion with sodium tetraborate and treatment with dilute nitric acid, addition of ammonium molybdate to convert silicate into a molybdatosilicate complex, reduction to molybdenum blue with ascorbic acid, and spectrophotometric measurement of the absorbance of the molybdenum blue complex at a wavelength of approximately 600 nm. Applies to silicon contents between 0,1 % and 5,0 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products, especially for ores containing fluorine.

Životni ciklus

PRETHODNO

POVUČEN
ISO 4686:1980

TRENUTNO

OBJAVLJEN
ISO 2598-2:1992
90.93 Odluka o potvrđivanju standarda
30. 3. 2025.

Nacionalna preuzimanja

SRPS ISO 2598-2:1997  
ISS

Rude gvožđa - Određivanje sadržaja silicijuma - Deo 2: Spektrofotometrijska metoda sa redukovanjem molibdosilikata (identičan sa ISO 2598-2:1992)

90.93   Odluka o potvrđivanju standarda

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