Introduction to NDT

While there are more than 32 different NDT methods (basic theoretical principal) and even more techniques (the way in which method is applied) only six major methods are primarily used:

Surface and subsurface indications are usually sought by using

  • Penetrant Testing (PT)
  • Magnetic Testing (MT),
  • Visual Testing (VT) or
  • Eddy Current Testing (ECT)

Volumetric indications, meaning discontinuities inside materials, can be found using

  • Radiographic Testing (RT) or
  • Ultrasonic Testing (UT)

NDT operators are technical individuals tasked with the goal of finding, characterising and verifying the presence of discontinuities, monitoring their degradation and report indications that exceed the relevant industrial codes’ acceptance criteria resulting in threats to operational integrity or productivity of a component structure or industrial plant.

Applications of NDT techniques (such as ultrasonic, radiographic, liquid penetrant, magnetic particle, and eddy current testing) depend heavily on personnel training, experience and integrity. Personnel involved in application of industrial NDT methods and interpretation and evaluation of results must be certified by law or by the applied codes and standards governing the specific industry.

 


Access Conditions

Level 1 : MT, VT, PT Direct access to the course shall be granted if the candidate has passed both mathematics and science at Grade 10 (Proof of Grade 10 – or equivalent such as N1; certificate is required).
Level 1 : UT, RT, ECT Please note that RT Safety is mandatory for access to an RT 1 course and no RT 1 certificate shall be issued unless a RT Safety certificate in accordance with DOH and issued by Nelson Mandela
Metropiltan University Certificate can be shown.
Direct access to the course shall be granted if the candidate has passed both mathematics and science at Grade 12 (Proof of Grade 12 – or equivalent such as N3 certificate is required).
Alternatively, the candidate shall be required to pass a Proficiency Exam for surface methods, prior to being eligible to sit the applicable NDT course.
Please note that the Proficiency test is free of charge and only assesses the basic skills relating to mathematics, science, comprehension and communication capabilities required within
the applicable NDT method. The pass mark for the Proficiency test is 70%. Please contact Harold Jansen (harold.jansen@saiw.co.za) to ascertain availability and to make a booking.
Proficiency tests are performed on Thursdays between 8:00 and 11:00. In the case of candidates not being able to attend the Proficiency test due to transport problems, arrangements can
be made to have the test e-mailed to a suitable invigilator and returned via email once completed.
Level 2 – All Methods Candidate shall be qualified i.e. have received training in accordance with ISO9712: 2012 requirements and have passed the Level 1 qualification examinations (certified is preferred) as a
Level 1 NDT Technician in the applicable method and sector.
Direct Access to Level 2:
Candidate shall have passed both mathematics and science at Grade 12 level (Equivalent to N3 – Proof of Grade 12 certificate is required) and have applicable tertiary qualification(s) and / or
relevant NDT experience. Combination of Level 1 and Level 2 Training hours in accordance with an approved syllabus and training programme as per SAQCC – NDT requirements and based on
Certification body approval. The Level 1 qualification examinations shall also have been successfully passed.
Level 3 – All Methods Candidate shall be qualified i.e. received training in accordance with ISO9712: 2012 requirements and have passed the Level 2 qualification examinations (certified is preferred) as a Level 2
NDT Technician in the applicable method and sector, appropriate tertiary qualifications (relevant to the NDT method – chemistry, mathematics or physics; and / or to the product or industry
sector – chemistry, metallurgy, engineering etc.) are advantageous.
All candidates for Level 3 Certification in any NDT method shall have successfully completed the Level 2 Practical exam. (If not certified as Level 2, the practical examination shall have been
passed within 1 year from date of writing the Level 3 main method examination)
Valid Level 2 Certificate in the applicable method and sector is mandatory when equipment operation or accepting tested components are required
Direct Access to Level 3:
Combination of Level 1, 2 and 3 Training hours in accordance with an approved syllabus and training program as per ISO 9712 : 2012 and SAQCC NDT requirements and based on Certification
body verification. The Level 2 qualification examinations shall also have been successfully passed. No reduction in requirements for industrial experience. Suitable tertiary qualifications
(relevant to the NDT method – chemistry, mathematics or physics; and / or to the product or industry sector – chemistry, metallurgy, engineering etc.) are mandatory.

 

Details of the Proficiency Test:

  • Free of charge
  • No limit on the number of attempts, keeping in mind that a different test shall be written each time
  • Only a black or blue pen and a scientific calculator is required
  • Tests are performed at SAIW branches on Thursday mornings @ 8am
  • The duration of the test is 2 hours
  • No electronic devices or other source material shall be allowed during the test
  • Tests can also be performed at other venues if a suitable invigilator has been identified.
  • The invigilator needs to provide details of the student as well as him / herself before a test will be sent to them.
  • The role of the invigilator is to ensure that the candidate does not cheat during the test.
  • The invigilator needs to return the completed test paper to SAIW for marking.

Please contact the relevant training administrator for further information or alternatively contact Harold Jansen  harold.jansen@saiw.co.za

Download NDT Access Conditions

 

Download Course Application Form