Home / Standards / GB/T 31512-2015 GB/T 31512-2015 Active Economic operation of water-source heat pump systems 水源热泵系统经济运行 Standard Type GBT ICS 27.010 CCS F01 Status 现行 Issue Date 2015-05-15 Implementation 2015-12-01 Responsible Dept 国家标准委 Drafting Unit N/A