Zkoušení keramických surovin a výrobků - Stanovení obsahu síry v práškových a zrnitých neoxidických keramických surovinách a výrobcích - Část 2: Optická emisní spektrometrie s induktivně vázaným plazmatem (ICP OES) nebo iontová chromatografie (IC) po spálení v proudu kyslíku (Norma k přímému použití jako ČSN).

The information about the standard:

Designation standards: ČSN EN ISO 14720-2
Classification mark: 726066
Catalog number: 523864
Publication date standards: 1.8.2026
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN

Annotation of standard text ČSN EN ISO 14720-2 (726066):

This document specifies a method for the determination of sulfur in non-oxidic ceramic raw materials and ceramic 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 document 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) can be considered as a practical value