Norm

NEN-EN-ISO 14720-2:2011 Ontw. en

Beproeven van keramische grondstoffen en elementaire materialen - Bepaling van zwavel in poeders en granulaten van niet-oxydische keramische grondstoffen en elementaire materialen - Deel 2: Atomaire-emissiespectrometrie met inductief gekoppeld plasma ICP/AES) of ion chromatografie na verbranding in een zuurstofstroom

  • Deze norm is ingetrokken sinds 14-03-2013

25,62

Over deze norm

Status Ingetrokken
Aantal pagina's 19
Commissie Vuurvaste materialen
Gepubliceerd op 01-05-2011
Taal Engels
This standard defines a method for the determination of sulfur in powdered and granular non-oxidic ceramic raw materials and materials, which are completely oxidised at higher temperature in an oxygen atmosphere, e.g. carbon and graphite materials. For materials, which are not completely oxidisable under these conditions, it is possible to determine sulphur that can be released under these conditions e.g. the adherent sulfur This standard is applicable for materials with mass fractions of sulfur ≤ 10 % and mass fractions of ash of < 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 case of ICP OES and 5 mg/kg in case of IC has to be considered as recommended value.

Details

ICS-code 81.060.10
Nederlandse titel Beproeven van keramische grondstoffen en elementaire materialen - Bepaling van zwavel in poeders en granulaten van niet-oxydische keramische grondstoffen en elementaire materialen - Deel 2: Atomaire-emissiespectrometrie met inductief gekoppeld plasma ICP/AES) of ion chromatografie na verbranding in een zuurstofstroom
Engelse titel 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 atomic emission spectrometry (ICP/AES) or ion chromatography after burning in an oxygen flow
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