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15 personnel for one course, is a big customer.
Liquid penetrant testing is one of the easiest NDT methods to perform. But, to detect defects, it is not simple.
That is ability, depends on several important factors:
1. Pre-Clean. As an extra step, but most important step of PT.
2. Qualification and experience.
3. Level of knowledge. An understanding of product working conditions for cleaning and application of the right procedures and techniques will increase the likelihood of discontinuities being detected.
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