Page 16 - Quick Guide to Welding and Weld Inspection by S.E. Hughes, Clifford Matthews

Chapter 1

Abbreviations, Terminology and
Welding Symbols

Abbreviations
It is useful to have an awareness of abbreviations used within
the world of welding and welding inspection. Some
commonly used ones are:
API: American Petroleum Institute
ASME: American Society of Mechanical Engineers
BM: base metal
BS: British Standard
BSI: British Standards Institute
CVI: close visual inspection
DT: destructive testing
EN: European standard (Euro Norm)
GVI: general visual inspection
HAZ: heat affected zone
ISO: International Standards Organisation
LCT: lower critical temperature
MT/MPI: magnetic testing/magnetic particle inspection
NDE/NDT: non-destructive examination/non-destructive
testing
PQR: Procedure Qualification Record
PT/LPE: penetrant testing/liquid penetrant
examination
PWHT: post-weld heat treatment
RT/RAD: radiographic testing/radiography
SWI: senior welding inspector
UCT: upper critical temperature
UT: ultrasonic testing
UTS: ultimate tensile strength
VI: visual inspection
VWI: visual welding inspector

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Woodhead Publishing Ltd – A Quick Guide to Welding and Weld Inspection
Data Standards Ltd, Frome, Somerset – 17/9/200901QG Welding chap1.3d Page 1 of 16