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ISO 9385:1990PublishedGlass and glass-ceramics — Knoop hardness testInternational Standard · Published 3 May 1990 · ISO/TC 172/SC 3ISO 14719:2011PublishedChemical analysis of refractory material glass and glazes — Determination of Fe2+ and Fe3+ by the spectral photometric method with 1,10-phenanthrolineInternational Standard · Published 29 Nov 2011 · ISO/TC 33ISO 21078-1:2008PublishedDetermination of boron (III) oxide in refractory products — Part 1: Determination of total boron (III) oxide in oxidic materials for ceramics, glass and glazesInternational Standard · Published 7 Jan 2008 · ISO/TC 33ISO 21078-2:2006PublishedDetermination of boron(III) oxide in refractory products — Part 2: Acid extraction method for the determination of boron(III) oxide in binder componentsInternational Standard · Published 28 Nov 2006 · ISO/TC 33ISO/TTA 1:1994WithdrawnAdvanced technical ceramics — Unified classification systemTechnology Trends Assessment · Published 21 Apr 1994 · ISO/TC 206