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ASTM C545-97(2013)
Standard Classification of Zircon Refractoriesstandard by ASTM International, 09/01/2013
1.1This 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).
1.2The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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