Marked Burst Pressure or Rated Burst Pressure (Rupture Disk)
Burst pressure, established by tests for the specified temperature and marked on the disk tag by the manufacturer. NOTE The marked burst pressure can be any pressure within the manufacturing design range unless otherwise specified by the customer. The marked burst pressure is applied to all of the rupture disks of the same lot.
Source: API STD 521, Pressure-relieving and Depressuring Systems, Fifth Edition, January 2007 (Addendum May 2008). Global Standards