M00001052
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ISO 14720-2 1st Edition, March 1, 2013 Testing of ceramic raw and basic materials - Determination of sulfur in powders and granules of non-oxidic ceramic raw and basic materials — Part 2: Inductively coupled plasma optical emission spectrometry (ICP/OES) or ion chromatography after burning in an oxygen flow
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 14720 defines a method for the determination of
sulfur in powdered and granular non-oxidic ceramic raw materials
and materials, which are completely oxidized at a higher
temperature in an oxygen atmosphere, e.g. carbon and graphite
materials.
For materials which are not completely oxidizable under these
conditions, it is possible to determine sulfur that can be released
under these conditions, e.g. the adherent sulfur.
This part of ISO 14720 is applicable for materials with mass
fractions of sulfur 10 % and mass fractions of ash
20 %, The defined method is limited for materials with mass
fractions of barium 10 mg/kg, because the sulfur bonded in
barium sulfate is not detectable with this method.
For the lower detection limit of this method, a mass fraction of
sulfur of 0,5 mg/kg in the case of inductively coupled plasma
optical emission spectrometry (ICP/OES) and 5 mg/kg in the case of
ion chromatography (IC) has to be considered as a recommended
value.