This course provides detailed theoretical and practical information on all commonly encountered penetrant testing techniques. Candidates will have the opportunity to use different methods on welds. This course is suitable for beginners and personnel with an existing NDT knowledge.

This course provides excellent preparation for level 1 and 2 examinations. It meets, in full, the training hour requirements as specifies in the ASNT.

Duration 3 Days

Study Guides, Study Guides and Practical



Candidate must pass the examinations to receive Level 1 & 2 certificates

Examination Papers

General Exam: Objective type closed book written exam address the basic principles of the applicable method. Specific Exam: Objective type open book written exam address the equipment, operating procedure, NDT technique, Codes and standards. Practical Exam: The Candidate should demonstrate familiarity with and ability to operate the necessary NDT equipment, record, and analyse the resultant information to the degree required.

Special Notes

This course is specifically designed for candidates wishing to become certificated as penetrant testing inspectors under the ASNT requirements.

Overall Course content

  • Introduction to penetrant methods
  • Basic principles of penetrant testing
  • Equipments used in penetrant inspection
  • Defect detection and evaluation
  • Techniques of penetrant inspection
  • Relevant Codes, Standards
  • Extensive hands-on practical element

Course Syllabus

  • Basic principles of penetrant testing
  • Purpose of liquid penetrant testing
  • Commercially available types of liquid penetrants
  • Part preparation
  • Lighting requirements for visible dye and Fluorescent inspection
  • Application of penetrants to parts
  • Removal of excess penetrant
  • Developer application and drying
  • Inspection and evaluation
  • Post cleaning
  • Materials for liquid penetrant inspection
  • Precautions in liquid penetrant inspection
  • Process of various methods
  • Surface cleaning methods
  • Advantages and Disadvantages of various methods
  • Discontinuities inherent in various methods
  • Factors affecting indications
  • Indication from cracks
  • indication from porosity
  • Indications from specific material forms – welding, casting, forging, plates, extrusions, indication during service, etc.,
  • Evaluation of indications
  • Reason for indication
  • Appearance of indication
  • Time for indication to appear
  • Effects of temperature and lighting
  • Effects of metal smearing operations (shot peening, machining etc.,)
  • True and False indication
  • Linear and Rounded indications
  • Relevant and Non Relevant indication
  • Testing and maintenance materials
  • Safety and health – Toxicity, Flammability, precautions for ultraviolet radiation, MSDS
  • Acceptance criteria
  • Report writing