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Basic Visual Inspection

10 weeks

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Basic Visual Inspection

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Created By admin@decibel
Last Updated November 4th, 2021

Visual Inspection (VT)

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, boroscope (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.

PCN & SNT-TC-1A minimum work experience and training hour’s requirements for VT examinations

Level 1

16 hours Training (PCN), 8 hours (SNT-TA-1A)
1 month Work Experience (PCN), 70 hours in method & 130 hours in NDT.

Level 2

24 hours Training (PCN), 16 hours Training (SNT-TC-1A) (additional to the hours for Level 1)
3 months Work Experience (PCN), 140 hours in method & 270 hours in NDT (SNT-TC-1A)

(Additional to the 1 month for Level 1) 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 provide Visual Testing training courses and examinations suitable for any of the following certification scheme.
SNT-TC-1A in accordance with your/our company written practice

We can also provide

Preparation training for ASNT Level 3

An example of the syllabus that is used for visual inspection training courses is shown below for Level 1 and 2. Decibel can tailor make the syllabus to satisfy the requirements of an individual’s company specific written practice if requested.

Level 1
General Theory	Specific Theory	Practical Examination
Introduction to Visual Inspection Definitions Fundamentals Equipment Checks and Calibrations Test Procedures	Application of the Method and use of Codes, Specifications and Procedures, applicable to the company, including the relevant control checks.	Follow written instructions and process the inspection test pieces, record and report defects from know datum markers, carry out pre test calibration checks, post test procedures.

About QualificationLevel 1 General Qualification required for separate certification:10th Grade, SSLC, +2, HSC, Diploma – above or equivalent.Level 2 Direct – General Qualification required for separate certification:Level 1 With 6 month’s industrial experience or Science Graduation, Engineering Graduation.Course Duration:Will vary depends on the type of certification chosen

Level 2
General Theory	Specific Theory	Practical Examination
(in addition to the Level 1 Syllabus above) Basics of Vision Lighting Techniques Material Attributes Visual Perception Equipment Employer Applications Accept / Reject Criteria Recording and Reporting	Application of the method to the specific requirements of the company, in particular making reference to those Codes, Specifications and Procedures used by the company, including the relevant control checks. Product technology of the products for the relevant sector, i.e. welds, castings, forgings, this includes, manufacturing processes, defect formation and detection.	Production of written instruction, determine the best inspection techniques for the individual parts, process the inspection test pieces, record and report defects from know Datum markers, carry out pre test calibration checks, post test procedures

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