Home / Standards / QB/T 1909-2012 QB/T 1909-2012 Abolished 指针、液晶数字式石英手表 Standard Type QB ICS N/A CCS N/A Status Abolished Issue Date 2012-11-07 Implementation 2013-03-01 Centralized Committee 工业和信息化部 Issuing Authority 工业和信息化部