LIQUID PENETRANT TESTING Level III Exam Preparation and Refresher

Liquid Penetrant Testing teaches students the basic principles governing the Testing and Inspection Process and familiarizes them with the different types of parts tested. 

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Course Features

  • Understand the basic principles governing the Testing and Inspection Process.
  • Be familiar with the different types of parts tested.
  • Be familiar with the basic procedures involved with the test method.
  • Understand the specific requirements for the technique and be able to properly select the procedure.
  • Understand the advantages and disadvantages of the test method.
  • Understand basic Metallurgy where related to NDT and the material tested.

You will be able to:

  • Use the different types of penetrant products available to industry.
  • Decide on the necessary items and products required to complete the job.
  • Follow a proper and authorized testing procedure.
  • Understand and recognize the typical surface discontinuities, flaws or irregularities.
  • Use the Black and White ‘lights’ properly as needed.
  • Analyze the project situation and results required.
  • Be prepared to interpret results with a senior technician.

Key Points of Course – Level 3

Equipment discussed, including:

  • Your ability to understand various types and the functions of standard equipment.
  • Penetrant Facilities and their types, application and their use including Fluorescent, Wet and Dry methods, Portable and fixed units. Blacklight - checks and calibrations.

Surface Preparing, including:

  • Degreasing processes, surface scale and paints removal.

Penetrants:

  • Their purpose, preparation, application and specific types – Water Washable, Post-emusifiable, Visible.

Washing, Cleaning:

  • Including knowledge for Coarse, stream spraying or dipping, liquid types and temperatures.

Developers:

  • Purpose, types and procedures for use – Wet or Dry and time allottments.

Inspections:

  • With white or blacklight, filters and viewing environments.
  • Effects likely to encounter with various surfaces – cracks, porosity/pinholes, seams, shuts and machine marks and non-relevant indications.

Techniques:

  • Standards to follow and appraisal of the inspected piece(s).