NDT personnel, engineers, surveyors, inspectors and quality engineers.
Courses delivered at TWI Abington, near Cambridge are also available for personnel working in the aerospace industry and can be found under the Aerospace section (NDT20A).
Welding processes and weld defects; properties of X- and gamma-rays; sensitometry; film selection; film processing and spurious indications; factors controlling contrast and definition; X- and gamma-ray equipment; ionising radiation hazards; regulations; use of screens and filters; selection of angle of aspect; image quality indicators; defect depth location; castings; reporting.
Candidates receive training relevant to the examination to be taken covering practical, inspection and theoretical aspects as appropriate.
The course ends with the certification examination.
Training in accordance with the requirements of BS EN ISO 9712.
- To explain the basic theory of X - and gamma radiography
- To select film type and energy levels, select and prepare techniques for a given specimen
- To state the theory of film processing and carry out practical dark-room work
- To have a working knowledge of basic radiation safety (see note in Additional Information)
- To plot and evaluate film characteristics (sensitometry)
- To recognise film faults
- To meet the syllabus requirements for CSWIP/PCN Level 2
TWI Training & Examination Services requires all students wishing to attend the Radiographic Testing training (NDT20) to hold as a minimum a Basic Radiographic Safety qualification before they will be allowed onto the course.
The course does not cover PCN Level 2 Safety Endorsement (Radiation Protection Supervisor).
PCN Radiography certificates are only valid so long as the holder holds any other level of PCN radiation protection certification, or valid radiation safety certification recognised by the British Institute of NDT.
Price listed for direct access Level 2 and includes examination and levy fees. For Level 1 option, please contact Customer Services.
All candidates attending a PCN examination (initial, retest or renewal) must provide photo ID (e.g Driving licence number, Passport number, PCN ID Card) on the day of sitting the examination.
Failure to do so will result in the candidate being turned away.
No mandatory course entry requirements.
The minimum required duration of training, which includes both theoretical and practical elements, is:
- Level 1 - 40 hours
- Level 2 - 80 hours (Direct Level 2 - 120 hours)
The training hours requirement is fulfilled when candidates attend one of TWI's training courses.
The minimum duration for experience prior to or following success in the qualification examination is:
- Level 1 - 3 months
- Level 2 - 9 months (Direct Level 2 - 12 months)
Certification will not be issued until successful completion of the examination and the required experience is achieved.
- Radiographic Interpretation (RI) - Principles
- Radiographic Interpretation (RI) - Light & Dense Metal Welds
- Radiographic Interpretation (RI) - Light & Dense Metal Castings
- Ultrasonic Testing