Online Liquid Penetrant Testing (PT) Class: Levels I/II

Overview of the Liquid Penetrant Testing Online Class

The Atlas 12-hour online Liquid Penetrant Testing course will satisfy the classroom training requirement in the multi-stage certification process or serve as a great refresher course. Our online ASNT PT classes meet the requirements for "Body of Knowledge" and "General Test" recommendations as outlined in SNT-TC-1A.


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 covers the subject matter listed in the ANSI/ASNT CP 105 outline for liquid penetrant certification. A training certificate will be issued upon satisfactory completion of all training material and exams. NDT classroom training online by SIWET is very convenient and economical.


NDT training online with SIWET is the most convenient and economical way to meet the classroom requirements for ASNT Liquid penetrant testing I/II certification


Liquid Penetrant Inspection uses the property of capillary action to find surface breaking discontinuities in a variety of materials. It is one of the most economical NDT methods. A low viscosity liquid (penetrant) is applied to the surface of a test piece. Liquid Penetrant Inspection uses this capillary action to allow the penetrant to enter into fissures and voids that are open to the surface. After a dwelling time, the excess penetrant is removed, any remaining penetrant in the voids will flow back out exposing the indication. There are a variety of techniques included in liquid penetrant testing available depending on the type of NDT inspection and the kind of flaws a technician is aiming to find.

Liquid Penetrant Testing Course Curriculum

Lesson 1: Equipment
Lesson 2: Surface Preparation
Lesson 3: Penetrants
Lesson 4: Washing and Cleaning
Lesson 5: Developers
Lesson 6: Inspections
Lesson 7: Techniques