·Table of Contents
·Workshop - Visual testing

The Requirement for Training of Visual Test Personnel

Tim Armitt, Lavender International NDT Ltd., UK
Dr Dietmar Henning Sector Cert., Germany.



Subjective results

Direct Visual Testing

Remote Visual Testing

Product Forms

Specific Applications

Equipment Selection

Equipment Performance

Why rely on Visual Testing?

Need for Training

Standardized Terminology

Is Certification Necessary?


  1. EN 473: General Principles for Qualification and Certification of NDT Personnel.
  2. EN 763: Plastics Piping and Ducting Systems. Injection Molded Thermoplastic Fittings. Test Method for Visually Assessing Effects of Heating.
  3. EN 970: Non-Destructive Examination of Fusion Welds. Visual Examination.
  4. EN 1330-1 Non-Destructive Testing. Terminology. List of General Terms.
  5. EN 1330-2 Non-Destructive Testing. Terminology. List of Common Terms.
  6. pr EN1330-10 Non-Destructive Testing. Terminology. Terms used in Visual Testing.
  7. EN 1370: Founding. Surface Roughness. Inspection by Visual Tactile Comparitors.
  8. pr EN 4179: Qualification and Approval of Personnel for Non-Destructive Testing.
  9. EN 12454: Founding. Visual Examination of Surface Discontinuities. Steel Sand Castings.
  10. pr EN13018: Non-Destructive Testing. General Principles. Visual Testing.
  11. pr EN 13927: Non-Destructive Testing. Visual Test Equipment.
  12. ISO9712: Non-Destructive Testing - Qualification and Certification of Personnel.
  13. SNT-TC-1A Recommended Practice: Personnel Qualification and Certification in Non-Destructive Testing
  14. ANSI/ASNT CP-189-1995: ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel
  15. NAS410 NAS Certification and Qualification of Non-Destructive Test Personnel
  16. ASME Boiler & Pressure Vessel Code Section V: Non-Destructive Examination. (Section 9)
  17. ASME Boiler & Pressure Vessel Code Section XI: Rules for In-service Inspection of Nuclear Power Plant Components. (Section IWA2000)
  18. Useful reading:
    ASNT Handbook Volume 8: Visual & Optical Testing

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