Home / Standards / GB 28377-2012 GB 28377-2012 Abolished Minimum allowable values of water efficiency and water efficiency grades for urinals 小便器用水效率限定值及用水效率等级 Standard Type GB ICS 91.140.70 CCS Q31 Status 废止 Issue Date 2012-05-11 Implementation 2013-04-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委