Home / Standards / GB/T 7322-2007 GB/T 7322-2007 Abolished Refractory products - Determination of pyrometric cone equivalent (refractoriness) 耐火材料 耐火度试验方法 Standard Type GBT ICS 81.080 CCS Q40 Status 废止 Issue Date 2007-10-25 Implementation 2008-04-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委