SNT-TC -1A and CP 189 are two documents which provide the glimpse of NDE/NDT Level III. For this educations video CP 189 is referred. while SNT-TC-1A provides the following guidelines.
NDE Level III individual shall have sufficient technical knowledge and skills to develop, qualify, and approve procedures, establish and approve techniques, interpret codes, standards, specifications, and procedures; and designate the NDE methods, techniques, and procedures to be used. The NDE Level III shall be responsible for the NDE operations for which qualified and assigned and shall be capable of interpreting and evaluating results in terms of existing codes, standards, and specifications. The NDE Level III shall have sufficient practical background in applicable materials, fabrication, and product technology to establish techniques and to assist in establishing acceptance criteria when none are otherwise available. The NDE Level III shall have general familiarity with other appropriate NDE methods, as demonstrated by a Level III Basic examination or other means. The NDE Level III, in the methods in which certified, shall have sufficient technical knowledge and skills to be capable of training and examining NDE Level I, II, and III personnel for certification in those methods.
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