Home / Standards / GB/T 21339-2020 GB/T 21339-2020 Active The statistical and analytical methods for energy consumption in harbor industry 港口能源消耗统计及分析方法 Standard Type GBT ICS 03.220.40 CCS R06 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 交通运输部 Drafting Unit N/A