Home / Standards / GB/T 25965-2010 GB/T 25965-2010 Active Test methods of normal emittance of materials and hemispherical emittance of all-glass evacuated collector tubes 材料法向发射比与全玻璃真空太阳集热管半球发射比试验方法 Standard Type GBT ICS 27.160 CCS F01 Status 现行 Issue Date 2011-01-10 Implementation 2011-05-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委