QA/QC
Course · VT, PT, MT, UT, RT, ET

NDT Methods: The Complete Course

Every common NDT method explained from first principles to the report: how it works, equipment, technique, calibration, interpretation and limits, with 153 diagrams and worked examples.

Instant download · Secure checkout with Payhip · Single-user licence

252 pages153 diagrams8 chapters
Cover of NDT Methods: The Complete Course
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What you get

In the download.

Every file, ready to use.

The complete course (PDF)

252 pages across eight chapters, each with learning outcomes, diagrams, worked examples, a summary and review questions with answers.

Five single-method editions (PDF)

VT, PT, MT, UT and RT as separate books, 48 to 69 pages each, for focused study or printing.

Contents

Everything that is inside.

The full table of contents, so you know exactly what you are buying.

NDT fundamentals13
  1. What NDT is and why it is used
  2. Destructive versus non-destructive testing
  3. The language of NDT: discontinuity, imperfection, flaw, indication, defect
  4. Where discontinuities come from
  5. Classifying discontinuities: location and shape
  6. How orientation affects detectability
  7. Probability of detection: why no method finds everything
  8. Codes, standards, specifications, procedures and instructions
  9. Personnel qualification and certification
  10. When NDT is done during fabrication
  11. Reporting and traceability
  12. The main NDT methods at a glance
  13. Review questions
Visual testing12
  1. Why VT is the most important method
  2. Direct and remote visual testing
  3. Viewing conditions
  4. The visual inspector
  5. Measuring tools and how to use them
  6. VT before welding
  7. VT during welding
  8. VT after welding: geometry and size
  9. A visual guide to surface imperfections
  10. Recording and reporting
  11. Common mistakes in visual testing
  12. Review questions
Penetrant testing (PT)18
  1. What penetrant testing is
  2. The physics: why a liquid enters a crack
  3. What PT can and cannot find
  4. Penetrant types and sensitivity
  5. Removal methods
  6. Developers
  7. The process step by step
  8. Viewing conditions
  9. System checks and reference panels
  10. Interpretation
  11. Evaluation and acceptance
  12. Recording and reporting
  13. PT on welds
  14. Safety
  15. Advantages and limitations
  16. Troubleshooting
  17. Common mistakes
  18. Review questions
Magnetic particle testing (MT)20
  1. The principle in one page
  2. Magnetism basics
  3. The hysteresis loop
  4. Flux leakage and why orientation matters
  5. Surface and near-surface detection: why depth is limited
  6. Magnetising methods
  7. Magnetising current: AC, DC and HWDC
  8. Checking the field
  9. Detection media: the particles
  10. Continuous and residual techniques
  11. Viewing conditions
  12. The MT procedure step by step
  13. Interpretation: relevant, non-relevant and false indications
  14. MT on welds
  15. Demagnetisation
  16. Safety
  17. Advantages and limitations
  18. Troubleshooting
  19. Common mistakes
  20. Review questions
Ultrasonic testing (UT)23
  1. What ultrasonic testing does
  2. Sound basics: frequency, wavelength and velocity
  3. Wave modes
  4. Acoustic impedance, reflection and couplant
  5. Refraction, Snell's law and the critical angles
  6. Attenuation, the sound beam and the dead zone
  7. Transducers (probes)
  8. The flaw detector and the A-scan
  9. Calibration and reference blocks
  10. Setting sensitivity: DAC, TCG and DGS
  11. Checking the parent plate for laminations
  12. Scanning a butt weld with angle probes
  13. Characterising and sizing flaws
  14. Thickness measurement and corrosion surveys
  15. What UT detects well and what it struggles with
  16. Standards you will meet
  17. Introduction to phased array UT (PAUT)
  18. Introduction to time of flight diffraction (TOFD)
  19. UT compared with radiography
  20. Reporting
  21. Common mistakes
  22. Troubleshooting
  23. Review questions
Radiographic testing (RT)21
  1. The principle: a shadow picture
  2. X-rays and gamma rays
  3. Half-life and source decay
  4. The inverse square law
  5. Attenuation and the half-value layer
  6. Film radiography
  7. Digital radiography
  8. Geometric unsharpness and exposure geometry
  9. Image quality indicators (IQIs)
  10. Exposure techniques for plates and pipes
  11. Location markers, identification and overlap
  12. Viewing conditions and a disciplined reading routine
  13. What weld imperfections look like
  14. Why RT struggles with planar flaws
  15. Film artefacts: false indications
  16. Radiation safety
  17. Standards for weld radiography
  18. Advantages and limitations, RT compared with UT
  19. Reporting
  20. Common mistakes and field tips
  21. Review questions
Eddy current testing (ET) and other methods15
  1. Electromagnetic induction: where eddy currents come from
  2. The impedance plane
  3. Standard depth of penetration
  4. Choosing the test frequency
  5. Probe types
  6. Reference standards and system set-up
  7. Applications
  8. Eddy current inspection of welds
  9. Advantages and limitations of ET
  10. Alternating current field measurement (ACFM)
  11. Leak testing (LT)
  12. Acoustic emission (AE)
  13. Infrared thermography (IRT)
  14. Pressure and hydrostatic testing
  15. Review questions
Choosing the right method and putting it together11
  1. Why method selection matters
  2. The selection factors
  3. Method comparison at a glance
  4. A decision flowchart
  5. Worked scenarios
  6. Writing and reading NDT procedures
  7. What an NDT report must record
  8. Coordinating NDT on a fabrication project
  9. How NDT fits the welding inspector's role
  10. Final exam: 60 questions
  11. Glossary of NDT terms
Who it is for

Made for working inspectors.

Questions

Before you buy.

What format is it?

Digital files: PDF guides, and Excel, Word or PowerPoint files where the product includes them. You get a download link straight after checkout, and by email.

Can I use it at work?

Yes. The single-user licence covers your own work, including on your employer's and your clients' projects. For a team licence, contact us through the Payhip store.

Which software do I need?

A PDF reader. The files print well on A4.

Is the sample data real?

No. All sample projects, names, dates and figures are fictitious and are there to show how each file works.

Is this affiliated with TWI, CSWIP, ASNT or any code body?

No. sevenwoods.co is independent. The questions, diagrams and text are original and are not taken from any examination or standard. Always work to the current code, your procedure and your employer's requirements.

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NDT Methods Course

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