Understanding NRT- Reading 1- 2 of 2- Radiogaphic Testing A
Understanding nrt reading 1- 2 of 2- radiogaphic testing a
Understanding nrt reading 1- 2 of 2- radiogaphic testing a
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Root edge condition shows the penetration <strong>of</strong> weld metal into the backing<br />
ring or into the clearance between backing ring or strip and the base metal. It<br />
appears in radiographs as a sharply defined film density transition.<br />
Root undercut appears as an intermittent or continuous groove in the<br />
internal surface <strong>of</strong> the base metal, backing ring or strip along the edge <strong>of</strong> the<br />
weld root.<br />
Charlie Chong/ Fion Zhang
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