What is Ultrasonic TOFD?

Time of Flight Diffraction is an Ultrasonic technique developed originally to improve the sizing accuracy of flaws previously detected by other means. Early applications of the technique advanced from solely sizing flaws to applications relying on TOFD for principle detection means, this pioneering technology resulted in major flaws being missed due to poor application and a general lack of understanding by persons operating the equipment.

What are the responsibilities of a individual who is certified to UT TOFD Level 2?

An individual certified to UT TOFD Level 2 has demonstrated competence to perform NDT according to UT TOFD procedures. Within the scope of the competence defined on the certificate, Level 2 personnel may be authorised by the employer to:

  • Select the UT TOFD technique for the test method to be used;
  • Define the limitations of application of the testing method;
  • Translate NDT codes, standards, specifications and procedures into NDT instructions adapted to the actual working conditions;
  • Set up and verify equipment settings;
  • Perform and supervise tests;
  • Interpret and evaluate results according to applicable standards, codes, specifications or procedures;
  • Prepare UT TOFD written instructions
  • Carry out and supervise all tasks at or below level 2;
  • Provide guidance for personnel at or below level 2, and
  • Report the results of UT TOFD test

Days: 8 days training and 2 day exam
Duration: 80 hours

UT TOFD Level 2 training at Lavender International covers the following:

Syllabus specific to Ultrasonic Testing of Welds using Time of Flight Diffraction 

 

We provide examinations for Time of Flight Diffraction (TOFD) testing, including PCN personal certification examinations to Levels 2 and 3, plus examination for employers based schemes such as SNT-TC-1A, NAS410, EN4179, to Levels 2 and 3.

The PCN requirements for Level 2 TOFD are: 80 hours direct to Level 2, previous to the exam, and 12 months supervised work experience (Level 2 direct), to be obtained either before the examination, or within 24 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 24 months of passing the exam, PCN will issue certification.

The options for TOFD Level 2 examinations are:

Initial Candidate
Resit (Theory)
Resit (Practical)
Recertification

To be eligible for the PCN 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 specific paper and practical exam.

The PCN requirements for Ultrasonic TOFD Level 2 are: 12 months supervised work experience direct to Level 2, to be obtained either before the examination, or within 24 months after passing the exam.

Once the 80 hours training have been obtained, the examination passed, and 12 months supervised work experience obtained within 24 months of passing the exam, PCN will issue certification.

For employer based schemes the expected amount of work experience should be determined in the written practice.

Ultrasonic TOFD courses are taking place around the world with Lavender international.

See the table below for the most current dates available:

UK – AMP, Sheffield
9 – 20 October
4 – 15 December
USA – Houston, TX
October 2 – 13
Australia, Perth, WA
11 – 22 December

Scientific calculator
Safety boots and overalls
Lab coat

All other equipment and training materials (with the exception of Level 3 Text Books) are provided by Lavender International.

Protective gloves, protective eye glasses and plastic aprons are also available for the use of students if required.

PCN CERTIFICATION:
Candidates MUST bring their PCN Wallet Card.
If you do not have a wallet card bring some other form of identification showing a photograph, i.e. Passport or Photo Driving Licence.

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