Home / Standards / GB 19210-2003 GB 19210-2003 Active Cleaning code for air duct system in heating，ventilating and air-conditioning systems 空调通风系统清洗规范 Standard Type GB ICS 91.140.30 CCS Q76 Status 现行 Issue Date 2003-06-30 Implementation 2003-06-30 Responsible Dept 国家发展改革委 Drafting Unit 国家发展改革委