Reference

ASME / NBIC Glossary | PlateLabs

Reference glossary of ASME Section VIII Division 1 and NBIC pressure-vessel nameplate terminology — code symbol stamps, RT/HT/PHT designators, MAWP, MDMT, NB numbers, and more.

ANSI/IIAR 2 (Ammonia Refrigeration Safety)
Authorized Inspection AgencyAIA
Authorized InspectorAI
CE Marking (Pressure Equipment)
Code Symbol Stamp
HT (Full PWHT)
L (Lethal Service)
Maximum Allowable External Working PressureMAEWP
Maximum Allowable Working PressureMAWP
Minimum Design Metal TemperatureMDMT
National Board Inspection CodeNBIC
National Board NumberNB#
National Board Registration
NB-136 Form (Replacement Nameplate)NB-136
PED 2014/68/EUPED
PHT (Partial PWHT)
RT-1 (Full Radiography)
RT-2 (Full Cat. A and D, Spot B and C)
RT-3 (Spot Radiography)
RT-4 (Partial Radiography)
Section VIII Division 1
Section VIII Division 2
Section VIII Division 3
U StampU
U-1A Manufacturer's Data ReportU-1A
U-1B FormU-1B
U2 Stamp (Section VIII Division 2)U2
U3 Stamp (Section VIII Division 3)U3
UCS (Carbon and Low-Alloy Steel)UCS
UG-116 (Required Marking)UG-116
UG-118 (Methods of Marking)UG-118
UG-119 (Nameplates)UG-119
UG-22 (Loadings)UG-22
UG-25 (Corrosion)UG-25
UG-99 (Hydrostatic Test)UG-99
UHA (High-Alloy Steel)UHA
UHT (Heat-Treated Ferritic Steel)UHT
UM Stamp (Miniature Vessel)UM
UNF (Nonferrous)UNF
WL (Welded Layer Construction)