Liquid Penetrant Levels 1 & 2

Course Overview

Training Objectives
This course provides a basic knowledge of liquid penetrant inspection sufficient to enable the graduate to carry out liquid penetrant inspection in accordance with established procedures under the supervision of Level 2 or Level 3 personnel. The practical work incorporated in the program will help the participant to develop self-confidence in processing components following written instructions and to be knowledgeable in the terminology associated with liquid penetrant inspection.

Applicable Standards
This course meets the training syllabus requirements of CAN/CGSB-48.9712, ISO 9712 and SNT-TC-1A.

Definition of Level 2 Personnel (as per CGSB)
Level 2 personnel are defined as personnel who will perform and/or direct Liquid Penetrant Testing according to established or recognized procedures and shall be responsible for the liquid penetrant method or technique to be used, and for the interpretation of the test results.

Course Outline

  • Brief outline of the roles of: Canadian Institute for Non-destructive Evaluation; Canadian General Standards Board; Department of Natural Resources Canada; SNT-TC-1A
  • The role and definition of non-destructive examination
  • Brief history of liquid penetrant inspection
Basic Principles of Liquid Penetrant Inspection
  • Why penetrant testing is used and works
  • What penetrant testing is used on and reveals
Basic Steps of Liquid Penetrant Processing
  • Part preparation
  • Application of penetrant
  • Removal of excess penetrant
  • Application of developer
  • Inspection
  • Post-cleaning
Types of Penetrants in Current Use
  • Commonly used penetrant materials
  • Some of the "special" penetrant materials
  • Packaging of penetrant materials
  • Precautions regarding penetrant materials
  • Physical properties of penetrants
  • Advantages and disadvantages of each penetrant process
  • Physical properties of penetrant materials
  • Safety precautions involved with different materials and applications
  • Inspection environments: requirements for fluorescent inspection, requirements for colour contrast inspection, requirements for dual mode inspection
Steps to Follow When Using Different Processes
  • Water washable fluorescent penetrants
  • Water washable visible penetrants
  • Post-emulsifiable fluorescent penetrants
  • Post-emulsifiable visible penetrants
  • Solvent removable fluorescent penetrants
  • Solvent removable visible penetrants
  • Dual system penetrants
Advantages and Disadvantages of Various Processes
  • From the viewpoint of time, cost and the inspector
Inspection, Interpretation and Evaluation
  • Defined
  • Responsibilities involved with each
  • Use of codes and standards
  • Interpretation of indications
  • Report writing and documentation
System Controls
  • Equipment; penetrants; emulsifiers; developers; cleaners
Liquid Penetrant Test Equipment and Accessories
  • Portable, stationary units and set-up
  • Black light and the electro-magnetic spectrum
  • "Housekeeping" requirements
  • Pressure and temperature controls
  • Performance checks and requirements
  • Specialized penetrant equipment and chemicals
  • Choice of method and technique development
Inspection Procedures and Standards
  • Following written procedures
  • Recognizing and following standards
  • Record keeping and general documentation procedures

Note: Safety shoes are mandatory for all laboratory work.

This course is offered in partnership with Canadian Institute for Non-Destructive Evaluation (CINDE).

Visit the CINDE website to register.