Home / Standards / GB/T 2999-2016 GB/T 2999-2016 Abolished Refractory materials—Determination of bulk density of granular materials 耐火材料 颗粒体积密度试验方法 Standard Type GBT ICS 81.080 CCS Q40 Status 废止 Issue Date 2016-08-29 Implementation 2017-07-01 Responsible Dept 国家标准委 Drafting Unit N/A