Home / Standards / GB/T 13639-2008 GB/T 13639-2008 Active Digital indicators with analogue input for use in industrial-process measurement and control systems 工业过程测量和控制系统用模拟输入数字式指示仪 Standard Type GBT ICS 25.040.40 CCS N14 Status 现行 Issue Date 2008-06-30 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A