Home / Standards / GB/T 5990-2021 GB/T 5990-2021 Active Refractory materials—Determination of thermal conductivity, specific heat capacity and thermal diffusivity(hot-wire method) 耐火材料 导热系数、比热容和热扩散系数试验方法(热线法) Standard Type GBT ICS 81.080 CCS Q40 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 国家标准委 Drafting Unit N/A