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ASTM C545-97(2007)

Historical Reaffirmation

Standard Classification of Zircon Refractories

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1.1 This classification covers fired refractory brick and shapes consisting predominantly of zircon (ZrO2SiO 2) and containing, by chemical analysis, not less than 60 % zirconium oxide (ZrO2) and not less than 30 % silica (SiO 2).


The zircon content and bulk density of a zirconia-silica refractory material have important influences on chemical resistance and its satisfactory use in refractory applications. This classification is considered useful for purchase specifications and quality control.

SDO ASTM: ASTM International
Document Number C545
Publication Date Oct. 1, 2007
Language en - English
Page Count 1
Revision Level 97(2007)
Supercedes
Committee C08.92
Publish Date Document Id Type View
Nov. 10, 1997 C0545-97 Revision
Sept. 1, 2022 C0545-97R22 Reaffirmation
Oct. 1, 2018 C0545-97R18 Reaffirmation
Sept. 1, 2013 C0545-97R13 Reaffirmation
Oct. 1, 2007 C0545-97R07 Reaffirmation
Nov. 10, 1997 C0545-97R02 Reaffirmation