Duration: 5 days
What will I learn?
This curriculum meets or exceeds the examination syllabus
for the certification of Level 2 personnel in LiquidPenetrant
Testing of Aerospace Materials and Components, in
accordance with EN 4179.
The course ends with the certification examination.
Objectives
Day 1 (Hours 1 to 4) THEORY,
CHAPTER 1: Introduction to Penetrant Testing
Background history, Capabilities of penetrant
inspection, Basic penetrant process, Leak detection,
Reasons for selecting penetrant
inspection, Personnel requirements, Equipment
requirements, Advantages, capabilities, disadvantages and
limitations of penetrant inspection, Safety precautions
Types of
penetrant Methods of removal, Sensitivity, Developers,
Classificationof penetrantmaterials and processes, Systems
or family concept, Basic penetrant processes Equipment
requirements
CHAPTER 2: Inspection and Interpretation
Lighting and facilities, Black light (UV-A) - sources,
generation, hazards, fixtures and intensity requirements,
Ambient light restrictions, Visible and UV-A light
intensity measurement, Black light intensity variables,
Inspection conditions APPENDIX B: Reference Literature:
Standards and Specifications APPENDIX E: Glossary of Terms
Day 1 (Hours 5 to 8) PRACTICAL,
Hour 5 to 8 Instructor Demo Fluorescent water-washable
method Fluorescent hydrophilic remover method Dry
powder developer - dust storm application Non-aqueous
developer – aerosol application Use of PSM-5 panel –
systems check Pre-Use checks – UV-A lights,
refractometer, dry powder contamination HOMEWORK
Chapter 1 issued
Day 2 (Hours 9 to 12) THEORY,
Review of Homework Chapter 1
CHAPTER 2: Inspection and Interpretation (continued)
Inspection, interpretation and evaluation, Classification of
discontinuities, Manufacturing and service induced
discontinuities, Evaluation of indications, Photography of
indications
CHAPTER 2: Inspection and Interpretation (continued)
Inspection,
interpretation and evaluation, Classification of
discontinuities, Manufacturing and service induced
discontinuities, Evaluation of indications, Photography of
indications
CHAPTER 3: Pre-testing, Cleaning, Pre-cleaning and Post-cleaning Pre-testing, Cleaning,
Contaminants and soils, cleaning processes, Mechanical
working processes, Post-cleaning after penetrant
inspection
CHAPTER 4: Mechanism, Properties and Application of
Penetrant Requirements of a penetrant,
Mechanism of a penetrant, Penetrant properties and
sensitivity Application of penetrant Temperature
limitations, Penetrant dwell
Day 2 (Hours 13 to 16) PRACTICAL,
Hours 13 to 16 Student
Practice, Use of PSM-5 panel – systems check Pre-use
checks – UV-A lights, refractometer, and dry powder
contamination Practical Exercises (QRS 29) HOMEWORK
Chapters 2, 3 & 4 issued
Day 2 (Hours 13 to 16) PRACTICAL,
Hours 13 to 16 Student Practice, Use of PSM-5 panel –
systems check Pre-use checks – UV-A lights,
refractometer, and dry powder contamination Practical
Exercises (QRS 29) HOMEWORK Chapters 2, 3 & 4 issued
Day 3 (Hours 17 to 20) THEORY,
Review of Homework Chapters 2, 3 & 4
CHAPTER 5: Penetrant Removal Factors influencing
removability Flaw size and shape
Type of penetrant, Methods of removal, Water-washable
penetrant removal, Lipophilic emulsifier and hydrophilic
remover processes, Comparison of lipophilic and
hydrophilic, Solvent removal
CHAPTER 6: Developers
Developer functions, Mechanisms of developer action,
Solvent action, Drying, Dry water soluble, water
suspendable and solvent-based developers, Comparison
of developers HOMEWORK Chapters 5 & 6 issued
Day 4 (Hours 25 to 29) THEORY,
Review of Homework Chapters 5 & 6
CHAPTER 7: Materials and Process Control
New and in-use materials, causes of material
degradation, Frequency of materials verification and
process control checks, Materials control and process
control testing,
Penetrant Systems Monitor (PSM) procedure and storage,
Systems performance testing, In- process penetrant testing,
BS EN 3452:2000 Annex B process control tests
APPENDIX A: Writing of Reports and Instructions
Day 4 (Hours 30 to 32) PRACTICAL,
Hours 30 to 32 Student Practice,
APPENDIX A: Writing of Reports and Instructions
Practical Exercises(QRS 29) HOMEWORK Chapter 7 issued
Day 5 (Hours 33 to 40) THEORY,
Review of Homework Chapter 7
Review of Writing of Reports and Instructions
CHAPTER 8: Special Purpose Materials
Oxygen compatible penetrants, Low Sulphur, low chlorine
penetrants, High temperature penetrant materials, Dye
precipitation penetrant system, reversed fluorescence
method, thixotropic penetrant, plastic film developers and
filtered particle penetrants
APPENDIX C: Comparison of Methods
Course Review Theory Review Practical Review
End of Course Examination
Debrief
Day 5 PRACTICAL,
Hours as available Student Practice
Practical Exercises(QRS 29)