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ENIQ Recommended Practice 1, Influential/Essential Parameters, Issue 2

Funded under: FP6-JRC


ENIQ Recommended Practice 1 should assist those involved in inspection qualification how to use and implement the concept of influential/essential parameters in agreement with the spirit of the European methodology. This version of RP 1 - Issue 2 - builds upon the experience gained in the use of Issue 1since it was published in 1998. The main objectives of this recommended practice are:
- to explain the proposed concept of influential/essential parameters,
- to indicate how the concept could be used in inspection qualification according to the European methodology,
- to give advice concerning the classification of influential parameters, to give examples of parameters which can be influential as a function of the specific inspection to be qualified for 2 cases: an ultrasonic inspection of welds and an eddy current inspection of steam generator tubes.

Additional information

Authors: ERIKSSON A, European Commission, Joint Research Centre, Institute for Energy, Petten (NL)
Bibliographic Reference: EUR 21751 EN (2006), 21 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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