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Technical Justification for the ENIQ 2nd Pilot Study

Funded under: FP6-JRC


This Technical Justification is the outcome of the activity of ENIQ - the European Network for Inspection and Qualification - as a part of the ENIQ second pilot study. The main objective of the 2nd pilot study was to show how to fully exploit the potential of Technical Justifications in the qualification of inspection procedures and thereby reduce the number of test piece trials on full-scale components. A specification was drawn up of the ferritic BWR-type nozzle to shell weld and the defects that the inspection was required to find and an automated ultrasonic inspection was designed to detect them. The evidence in this TJ came mainly from physical reasoning, theoretical modeling and results from previous work. The Technical Justification predicts whether the designated inspection would be successful in detecting the specified range of defects in the test piece. This Technical Justification has been developed as a consensus document amongst the members of ENIQ.

Additional information

Authors: No author stated, European Commission, Joint Research Centre, Institute for Energy, Petten (NL)
Bibliographic Reference: EUR 22208 EN (2005), 66 pp. Free of charge
Availability: Available from European Commission, JRC Knowledge Management Unit, Ispra (IT) Tel: +39 033278 9893 Fax: +39 033278 5409 E-mail: or Bruxelles (BE) Tel: +32 2 295 76 24 Fax: +32 2 299 63 22
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