This standard specifies the content and technical requirements for external inspection of boilers with subcritical and above pressures. This standard applies to power station boilers with subcritical pressure and above. Power station boilers with subcritical pressure below can be implemented as a reference.
DB34/T 1709-2012 history
2020DB34/T 1709-2020 Technical Guidelines for External Inspection of Subcritical and Above Power Plant Boilers
2012DB34/T 1709-2012 Technical Guidelines for External Inspection of Large Power Plant Boilers