Based on experience & competency in the NDT methods personnel are Qualified as
Level -I, Level – II & Level – III.
Level – I Inspector`s are qualified to perform specific tests, equipment calibration as per the written practice only. The decision to acceptance and reject shall be done with respect to the written practice only. Their qualification is more technique or task based. They should work only under the close supervision of a Level – II or Level – III.
Level – II Inspectors are qualified to Calibrate and set up equipment, carry out testing as per the written practice. They shall be able to interpret & evaluate as per the written practice. They shall also develop written procedure, prepare report for the inspection and document it. They can also train & supervise Level – I technicians. They must be familiar with all applicable codes, standards, and other documents that control the NDT method being utilized.
Level III Inspectors are usually into Consultancy, Management positions in a Company. They should be capable of establishing techniques and practice, interpreting codes, standards, and specifications, They shall be capable of determining the particular nondestructive testing methods, techniques, and practice to be used. They shall posses the required knowledge of the material to be tested, the fabrication & product engineering They are also responsible for training and examining Level I and Level II's.
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Find the factors that affect the Probability of Detection in NDT using statistical Design of experiments
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