Penetrant Testing Level I/II

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This course provides the required training for liquid penetrant testing (PT), covering techniques, materials, safety, system types, and interpretation. It aligns with SNT-TC-1A, NAS-410, and other key standards, and includes a certificate upon successful completion.


Member: $835
Nonmember/Associate: $935*
*For member pricing, upgrade your membership.
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On-demand
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Virtual
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Self-paced

Credit Info

  • Contact Hours: 7.5 
  • IACET CEUs: N/A 
  • Valid for ASNT Level III recertification: Yes

Course Overview

This course covers liquid penetrant (also called dye penetrant) testing, an NDT method used to detect cracks and cavities open to the surface of nonporous metallic materials. Liquid penetrant testing is one of the most popular NDT methods for inspection. 

During this comprehensive course, we will address the required PT training necessary for completion of the PT certification program, such as NAS-410, SNT-TC-1A, and NavSea Technical Publication T9074-AS-GIB-010/271. 

This course content conforms to the training subjects listed in ANSI/ASNT CP-105, Standard Topical Outlines for Qualification of Nondestructive Testing Personnel. This training will meet most certification documents for liquid penetrant testing, such as SNT-TC-1A. It encompasses the subject matter listed in the ANSI/ASNT CP 105 outline for liquid penetrant certification. Upon satisfactory completion of all training material and exams, a training certificate will be issued.

Upon Completion, Learners Will Have Covered:

  • Penetrant history, capillary action and wetting, cohesion and adhesion, and the methods of liquid penetrant testing 
  • Surface preparation, pre-cleaning, and the various liquid penetrant systems 
  • Safety; LOX materials; penetrant application techniques; penetrant dwell times; temperature limits; excess penetrant removal techniques and over cleaning precautions; advantages and disadvantages of each removal technique; developer types and application 
  • Interpretation and evaluation: false, non-relevant, and relevant indications 
  • Quality control test, tam panel; comparator block 
  • Terminology, product discontinuities by product form, such as casting, forgings, etc.; discussion of methods to make the different product forms and welding 
  • System classifications by Type, Method, Developer forms; penetrant terms such as wetting ability defined; procedure requirements 
  • Typical qualification and certification documents; SNT-TC-1A overview 

Meet the Instructor

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Gary Larson

Gary Larson brings over 40 years of NDT experience across industries including nuclear, aerospace, and manufacturing. He holds ASNT Level III certifications in RT, UT, PT, MT, and VT, along with ACCP credentials. Gary has worked with Sikorsky and Pratt & Whitney, providing inspection and training in multiple methods. He currently consults as a Level III for aerospace and military suppliers and contributes to ASTM’s E07 Committee. His teaching experience includes developing and delivering online NDT courses.

Questions? Contact us at education@asnt.org

Note: Please note the contact hours being awarded for this course.  To meet the training requirements in SNT-TC-1A, CP-189, and NAS-410, the student must complete the eLearning course and the necessary practical lab/hands-on sessions. These lab sessions must be overseen and documented by a Level III to ensure the required training hours are fulfilled.

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