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81.060 Ceramics
New standards
ISO 14720-2:2026
Testing of ceramic materials — Determination of sulfur in non-oxidic ceramic raw materials and ceramic materials — Part 2: Inductively coupled plasma optical emission spectrometry (ICP-OES) or ion chromatography (IC) after burning in the oxygen flow
Scope: 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.
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.
Base documents:
Replaces: ISO 14720-2:2013
ISO 14720-1:2026
Testing of ceramic materials — Determination of sulfur in non-oxidic ceramic raw materials and ceramic materials — Part 1: Infrared measurement methods
Scope: This document specifies a method for the determination of sulfur in non-oxidic ceramic raw materials and ceramic materials, such as silicon carbides, silicon nitrides, graphites, carbon blacks, cokes, carbon powders. If demonstrated by the recovery rate, this document can also be applied for other non-metallic powdered and granular materials, e.g. silicon dioxide.
This document is applicable for materials with mass fractions of sulfur from 0,005 % to 2 %.
This document can also be applied for materials with higher mass fractions of sulfur after verification of the particular case.
This document is applicable for materials with mass fractions of sulfur from 0,005 % to 2 %.
This document can also be applied for materials with higher mass fractions of sulfur after verification of the particular case.
Base documents:
Replaces: ISO 14720-1:2013
Replaced standards
ISO 14720-1:2013
Testing of ceramic raw and basic materials -- Determination of sulfur in powders and granules of non-oxidic ceramic raw and basic materials -- Part 1: Infrared measurement methods
Scope: ISO 14720-1:2013 defines a method for the determination of sulfur in powdered and granular non-oxidic ceramic raw materials and materials, such as silicon carbides, silicon nitrides, graphites, carbon blacks, cokes, carbon powders. If proved by the recovery rate, this method can also be applied for other non-metallic powdered and granular materials, e.g. silicon dioxide.
ISO 14720-1:2013 is applicable for materials with mass fractions of sulfur from 0,005 % to 2 %.
ISO 14720-1:2013 can also be applied for materials with higher mass fractions of sulfur after verification of the particular case.
ISO 14720-1:2013 is applicable for materials with mass fractions of sulfur from 0,005 % to 2 %.
ISO 14720-1:2013 can also be applied for materials with higher mass fractions of sulfur after verification of the particular case.
Base documents:
Replaced: ISO 14720-1:2026
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 an oxygen flow
Scope:
Base documents:
Replaced: ISO 14720-2:2026