EN ISO 14720-2:2013 PDF

Scope: This part of ISO 14720 specifies a method for determining the sulfur content in powder and granular non-oxidic ceramic raw materials and materials that oxidize completely at elevated temperatures in an oxygen stream, e.g. B. Carbon and graphite materials. For materials that do not oxidize completely under these conditions, the specified procedure also includes the sulfur that can be released under these conditions, e.g. B. the sulfur adhering to the sample can be determined. This part of ISO 14720 applies to materials with sulfur mass fractions of 10% and ignition residue < 20%. The specified method is limited to materials with a mass fraction of barium < 10 mg/kg, as sulfur bound in barium sulfate cannot be detected using this method. The guide values for the lower detection limit of this method are mass fractions of sulfur of 0.5 mg/kg when determined using an optical emission spectrometer with inductively coupled plasma (ICP OES) and 5 mg/kg when determined using ion chromatography (IC).

EN ISO 14720-2:2013 Referenced Document

ISO 10304-1:2007 Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate
ISO 11885:2007 Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)

2013 EN ISO 14720-2:2013 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