Visual Testing Level 2
This method involves both direct and indirect visual inspection techniques, direct inspection is where the material is inspected directly by the human eye with no additional visual aids, indirect inspection may involve the use of magnifying glass, mirror, borescope (mini camera), closed-circuit TV etc. Visual inspection is a crucial NDT method which is too often overlooked, this should be the basis for inspectors starting out in the NDT industry, for example, a visual examination of an operational plant can often reveal obvious problem areas, such as leaks, excess vibration, corrosion or misalignment, this inspection is a very cost effective exercise and can be used to identify areas that require further NDT applications.
We can provide Visual Testing (VT) training courses and examinations suitable for the following certification schemes at Level 1 & 2.
SNT-TC-1A, CP 189 in accordance with your company written practice
If a candidate wishes to go direct to Level 2 without first taking the Level 1 route, the minimum requirements are the total accumulative requirements of both Level 1 and 2.
We can also provide Preparation training for ASNT Level 3
NDT Academy can tailor make the syllabus to satisfy the requirements of an individual’s company specific written practice if requested.
Visual Testing Level II Topical Outline
1.0 Introduction of visual Testing and Remote visual Inspection
(History, Applications, Advantage and limitations)
(Vision, Anatomy of the eye and mechanics of vision, Vision limitations, Perceptions, Orientation, Disorders, Employer’s visual acuity examination methods)
3.0 Lighting (Fundamentals of light, lighting measurements)
4.0 Material attributes (Cleanliness, Color, Condition, Shape, Size, Temperature, Texture, Type)
5.0 Environmental and physiological factors
(Atmosphere, Cleanliness, Comfort, Distance, Elevation, Fatigue, Health, Humidity, Mental attitude, Relative position, Temperature, Perception)
6.0 Principles and theory
7.1 Lighting ( Standard lighting, Special lighting)
(Magnification, Mirrors, Gages, Micrometers, Callipers, Templates, Scales, etc.)
7.3 Indirect ( remote)
8.0 Applications and techniques
9.0 Evaluation and Disposition Criteria
(Environmental, Infrastructure, Power generation, Petrochemical processing, Manufacturing, Aviation, Military)
10.0 Visual Testing and Remote Visual Inspection Requirements
(Codes, Standards, Procedures)
11.0 Recording and Documentation
(Technique reports, Data reports, Image recording methods)
12.0 Terminology and Definitions
Topics may be deleted if the visual testing is only required to perform direct visual inspection.