Home / Standards / GB/T 33841.1-2017 GB/T 33841.1-2017 Active Specification for energy-efficient operation of refrigerating system—Part 1：Ammonia refrigerating system 制冷系统节能运行规程 第1部分：氨制冷系统 Standard Type GBT ICS 27.200 CCS P49 Status 现行 Issue Date 2017-05-31 Implementation 2017-12-01 Responsible Dept 国家标准委 Drafting Unit N/A