NDT.net - October 1998, Vol.3 No.10

Table of Contents ECNDT '98

Session: Chemical, Petrochemical

The Need for Reliable NDT Measurements in Plant Management Systems

J. Verkooijen
AEA Sonomatic BV, Krombraak 15, 4906 CR Oosterhout, The Netherlands.

Corresponding Author Contact:
Wilbert Martens, AEA Sonomatic BV, Krombraak 15, 4906 CR, Oosterhout (Netherlands), Phone: +31 (0)162 42 55 88, Fax: +31 (0) 162 42 43 43, Wilbert.Martens@aea-technology.nl, http://www.aeat.co.uk



Design and service

Available techniques

Time of Flight Diffraction

Corrosion Mapping



Measuring inaccuracy

Stress measurement


Personnel qualification





  1. NDT value for Money, Dr.Martin Wall and Dr. Alan Wedgwood MTQ94 Birmingham Insight vol 36 No.10 October 1994
  2. NDT Economy Price Versus Cost, J.Verkooijen (Not Published, 1995)
  3. BS4515, Welding of Steel Pipelines on land and offshore 1995
  4. BS 7706, Guide to Calibration and setting up of the ultrasonic Time of Flight (TOFD) Technique for the detection, location and sizing of flaws 1993
  5. ASME VIII, Code case 2235 Use of Ultrasonic examination in lieu of radiography, Section VIII, div 1 & 2
  6. PDI, Procedure qualification summaries Tractebel Energy Engineering 1993
  7. WGAC9613rev 5, Draft acceptatie criteria voor TOFD (KINT project)
  8. Estimates of the probability of detection of flaws in TOFD data with varying levels of noise, M.G.Silk Insight Vol.38 No. 1 January 1996
  9. Risk Based Inspection (RBI), Planning- process and practice, I.O'Donnel AEA Technology Plc. 1996/1997
  10. A Methodology for Plant Stratification, D.A.McInnes, I.O'Donnel AEA Technology Plc. September 1996
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