This course is designed to provide participants the theory lectures and practical training with a preliminary understanding of Liquid Penetrant Testing (PT) as per the ASNT Recommended Practice No. SNT-TC-1A for Personnel Qualification and Certification in Nondestructive Testing.
Further, the course will discuss the basic principles and process of various methods and equipment; the appropriate penetrant testing method; the advantages and disadvantages of various methods; the inspection and evaluation of indications; the identification of discontinuities inherent in various materials, reason for indications, appearance of indications and time for indications to appear; the persistence of indications, effects of temperature, lightning and metal smearing operations, preferred sequence for penetrant inspection and part preparation; and the factors affecting indications for pre-cleaning, penetrant used, prior processing and technique used.
During this interactive course, participants will learn the indications from cracks occurring during solidification, processing and service; the indications from porosity and specific material forms that include forgings, castings, plate, welds and extrusions; the evaluation of true indications, false indications, relevant indications and non-relevant indications; the process control, control process variables, testing and maintenance of materials; the proper inspection procedures and standards including applicable methods/processes and acceptance criteria; and the basic methods of instruction.
Sample Questions for general examinations are presented in the separate question booklets that can be obtained from ASNT International Service Center. Participants will further demonstrate familiarity with and ability to operate the necessary equipment for PT, record and analyse the resultant information to the degree required as well as test flawed specimen and component and analyse the results of NDT as part of the practical training.
At the completion of the course, participants will be appearing for a Level II exam. Each candidate will be a ‘Certified ASNT NDT Level II in Liquid Penetrant Testing’ upon successfully passing the examination with a minimum passing composite grade of at least 80 percent (%) which will be administered and graded by Haward Technology through its Certified ASNT Level-III instructors.