Home / Standards / GB/T 50770-2013 GB/T 50770-2013 Specification for Design of Safety Instrumented Systems in Petrochemical Industry 石油化工安全仪表系统设计规范 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A