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ISO 14720-1:2026PublishedTesting of ceramic materials — Determination of sulfur in non-oxidic ceramic raw materials and ceramic materials — Part 1: Infrared measurement methodsISO 14720-2:2026PublishedTesting 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 flowISO 14720-1:2013WithdrawnTesting 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 methodsISO 14720-2:2013WithdrawnTesting 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