Glossary

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Glossary Terms

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a b c d e f g h i j k l m n o p q r s t u v w x y z

b

bend bending strain blister british standard brittle fracture buckle buckle arrestor buckle growth buckle propagation bulge

e

eddy current inspection electric fusion welded pipe electric resistance welded pipe electrode discharge machining electromagnetic acoustic transducer emergency shutdown valve engineering critical assessment engineering, procurement, installation, and construction enhanced sizing environment environmentally assisted cracking estimated repair factor estimated rupture pressure evaluation examination external corrosion direct assessment

g

gas transmission system geodetic datum girth weld girth weld crack global buckle gouge grade grinding guided wave ultrasonic testing

h

hard spot hazard and operability study hazard identification hazardous liquid heat-affected zone helical submerged arc welding high frequency high-consequence area high-frequency electrical resistance weld high-strength low-alloy hook crack hot tap hydrogen hydrogen stress cracking hydrogen sulfide hydrogen-induced cracking hydrostatic test

j

joint joint industry project

k

l

lack of fusion lamination lap lap welded lateral strain launcher leak liquid transmission system liquid-penetrant testing local buckle low frequency low-frequency electric resistance weld

m

magnetic flux leakage magnetic particle magnetic particle inspection magnetic particle testing mapping tool material identification maximum allowable operating pressure maximum operating pressure measured wall thickness measurement threshold mechanical damage metal loss microbiologically induced corrosion mile post mill test reports mill-related anomaly mitigation mitigative action

n

natural gas liquids nominal pipe size nominal wall thickness non-destructive evaluation non-destructive examination non-destructive testing

o

operating stress operator outer diameter ovality

q

qualification quality control

r

raw data receiver recommended practice reference magnet reference wall thickness remaining life remedial action remediation reporting threshold residual stress right-of-way ripple risk risk assessment river-bottom profile roll mark roof topping rupture

t

tangential eddy current array technical data sheet tensile strength tensile stress time-of-flight diffraction time-of-flight measurement toe crack tolerance tool transducer transit fatigue trap

u

ultrasonic technology ultrasonic testing ultrasound

v

w

water wax appearance temperature weld weld affected area weld anomaly wrinkle wrinkle bend

x

y

z

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