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  Time of Flight Diffraction Examinations at Lavender International    
       
 

We provide examinations for Time of Flight Diffraction (TOFD) Testing, including PCN personal certification examinations to Levels 1, 2 and 3, plus examination for employers based schemes such as SNT-TC-1A, NAS410, EN4179, to Levels 1, 2 and 3. We are unable to offer ASNT Level 3 examinations, as these are only available in one location in the UK. For the dates and location of the next ASNT Level 3 examinations, telephone the Lavender office on +44(0)1226765769.

Please Note: PCN require that an exam levy is paid at an appropriate rate

   
       
  Level 1    
       
 

To be eligible for the PCN/SNT Level 1 examination, an eye test must be passed (near vision and colour) and candidates must hold Level 1 PCN Certification in Ultrasonic Weld Testing.

The TOFD Level 1 examination includes a theory paper, specific paper and a practical exam.

The PCN requirements for Level 1 TOFD are: 40 hours training, previous to the exam, and 3 months supervised work experience, to be obtained either before the examination, or within 12 months after passing the exam.

Once the 40 hours training have been obtained, the examination passed, and 3 months supervised work experience obtained within 12 months of passing the exam, PCN will issue certification.

The options for TOFD Level 1 examinations are:

Initial Candidate
Resit (Theory)
Resit (Practical)
Recertification

   
       
  Level 2    
       
 

To be eligible for the PCN/SNT Level 2 examination, an eye test must be passed (near vision and colour) and candidates must hold Level 2 PCN Certification in Ultrasonic Weld Testing

The TOFD Level 2 examination includes a theory paper, specific paper and practical exam.

The PCN requirements for Level 2 TOFD are: 40 hours training if level 1 is held, or 80 hours direct to Level 2, previous to the exam, and 9 months supervised work experience additional to Level 1 (12 months direct), to be obtained either before the examination, or within 12 months after passing the exam.

Once the 40 additional hours training have been obtained, the examination passed, and 9 additional months supervised work experience obtained within 12 months of passing the exam, PCN will issue certification.

The options for TOFD Level 2 examinations are:

Initial Candidate
Resit (Theory)
Resit (Practical)
Recertification

   
       
  Level 3    
       
 

To be eligible for the PCN/SNT Level 3 examination, an eye test must be passed (near vision and colour) and candidates must hold a Level 3 PCN Certification in Ultrasonic Weld Testing and a level 2 UT practical.

You can view the PCN requirements for Level 3 on the Certification page.

The Level 3 Basic exam must be passed, this is a theory exam containing questions from a range of methods. In addition to the basic exam, the method exam must then be passed. For PCN, there are 3 theory papers, General, Specific, and Written Procedure. In PCN, if Level 2 is not held, the Level 2 practical exam must be passed.

The options for TOFD Level 3 examinations are:

Basic Examination
TOFD Examination
Level 2 Practical
Resit
Recertification