Home / Standards / GB/T 20217-2006 GB/T 20217-2006 Active Procedures for ensuring the cleanliness of industrial-process measurement and control equipment in oxygen service 保证氧用工业过程测量和控制装置清洁度的程序 Standard Type GBT ICS 17.100 CCS N11 Status 现行 Issue Date 2006-03-14 Implementation 2006-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会