NDT 102 - Liquid Penetrant Testing (PT) Level I and II

3 Credits, 3 Contact Hours
3 lecture periods 0 lab periods
Provides accurate, current and thorough training that leads directly to the ability of the student to perform valid liquid penetrant testing. Level I and II material is combined and presented in a single classroom course. Includes the basic knowledge of liquid penetrant methods A, B, C, and D, allowed cleaning methods, scope of application, proper use and calibration of media and equipment. Also includes an overview of the origin and nature of discontinuities.

  

1. Demonstrate proficient knowledge of liquid penetrant method.
2. Demonstrate proficient knowledge of the types of penetrant.
3. Demonstrate proficient knowledge of how to set up and calibrate NDT equipment.
4. Demonstrate proficient knowledge and basic understanding of nondestructive testing.

1. Introduction to Liquid Penetrant
   1. History of Liquid penetrant
   2. Availability of Liquid Penetrant
   3. Type 1 Fluorescent
   4. Method removal
   5. Developer forms
   6. Solvent classes
2. Liquid Penetrant Processing
   1. Procedures and techniques
   2. Pre-cleaning of test objects
   3. Rust and surface removal
   4. Paint removal 
   5. Etching
   6. Drying
   7. Dwell time
   8. Application of penetrant
   9. Penetrant type
   10. Interpretation and evaluation
   11. Types of indication
   12. Post cleaning 

1. Liquid Penetrant Testing Methods
   1. Method characteristics
   2. Type 1 florescent vs. type 2 visible
   3. Solvent or water removable
   4. Inline penetrant system
   5. Lipophilic emulsification
   6. Hydrophilic emulsification
2. Liquid Penetrant Testing Equipment
   1. Liquid penetrant testing units
   2. Sprayers and application
   3. Lamps for penetrant stations
   4. Thermostat and thermometers
   5. Exhaust fans and penetrant stations
   6. Refractometer and hydrometer
   7. Portable penetrant equipment
   8. Ultraviolet radiation illumination
   9. Materials for liquid penetrant testing
   10. Developers 
3. Selection of Liquid Penetrant Testing Method
   1. Selection of penetrant type
   2. Advantages and disadvantages
   3. Penetrant vs other methods
   4. Penetrant examination as a complimentary method
   5. Selection of penetrant method
   6. Post emulsification
   7. Dry developers
   8. Wet developers
4. Interpretation and Evaluation of Indications
   • Discontinuity categories
   • Discontinuities
   • Typical penetrant indications
   • Factors affecting indications
   • Indications from specific material forms
   • Indications from discontinuities
   • Evaluation of indications
5. Liquid Penetrant Process Control
   • Quality control of test materials
   • Reference blocks
   • Test of penetrant materials
   • Emulsifier test
   • Dry developer test
   • Wet developer test
6. Test Procedures and Standards
   • Standards
   • Specifications
   • Written practices
7. Safety, Health, and Disposal 
   • General safety
   • Flammability
   • Skin irritation
   • Respiratory considerations
   • Effects of ultraviolet radiation
   • Disposal of penetrant materials
   • Controlling penetrant usage