Announcement of Ministry of Housing and Urban-Rural Development of the People s Republic of China

No.1623

Announcement of the Ministry of Housing and Urban-Rural Development of the People s Republic of China on Issue of National Standard Code for Design of Safety Instrumented System in Petrochemical Engineering

The Code for Design of Safety Instrumented System in Petrochemical Engineering has been approved as a national standard with a serial number of GB/T 50770-2013，and it will be implemented on September 1，2013.

Authorized by the Research Institute of Standards and Norms，Ministry of housing and Urban-Rural Development of P.R.China，this code is published and distributed by China Planning Press.

Ministry of Housing and Urban-Rural Development of the People s Republic of China

February 7，2013