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ISO 9891:1994

Determination of carbon content in uranium dioxide powder and sintered pellets — High-frequency induction furnace combustion — Titrimetric/coulometric/infrared absorption methods
22. 12. 1994.

Опште информације

90.93     30. 5. 2022.

ISO

ISO/TC 85/SC 5

Međunarodni standard

27.120.30  

francuski   engleski  

Kupovina

Objavljen

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Apstrakt

The methods specified are based on heating a portion of the test sample at a temperature of at least 1100 °C to 1200 °C in an oxygen atmosphere, passing the evolved oxidation products over a purification trap filled with manganese dioxide catalyst and silver permanganate catalyst (that oxidises CO to CO2), trapping the CO2, restoring the initial pH continuously by addition of hydroxyl ions either by potentiostatic titrimetry or by coulometry, or alternatively determining the CO2 by IR absorption and integration of the signal obtained. Is applicable to the determination of 5 µg to 500 µg of carbon.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 9891:1994
90.93 Odluka o potvrđivanju standarda
30. 5. 2022.