This standard specifies the structural type, basic parameters, technical requirements, test methods, inspection rules, marking, packaging and storage of the QDZ pneumatic unit combination instrument QBY series pressure transmitter. This standard applies to QDZ pneumatic unit combination instrument QBY series pressure transmitter.
JB/T 8214.7-1999 history
1999JB/T 8214.7-1999 QDZ process pneumatic control system.Pressure transmitters