Visual

Training Visual

General Information:


Visual testing (VT) is an NDO method in which the operator performs a test, with or without the use of tools/borescope, by looking at the part. Visual testing can be used to find visible abnormalities, such as surface defects, sizing abnormalities, internal abnormalities (borescope) and/or corrosion.

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General

Before starting the test, the surface must be cleaned: grease, dirt and welding spatter should be removed.

Visual testing can be done at various distances relative to the object. If we look at the object from a greater distance, we speak of a general impression (review) and this gives a different result from a detailed study at a distance of less than 60 cm. In addition, there is the possibility to perform internal testing with a borescope.

For the visual assessment of constructions, components, parts and welding connections, various tools can be used, such as measuring tools, magnifiers, weld gauge and/or additional lighting.

If the operator has detailed knowledge of the object, knows the manufacturing process and/or is familiar with the conditions of use, this will have a positive effect on the visual test.

Scope/Products/Sectors

Surface testing of objects made of all possible materials.

When visually testing objects, we mainly search for the following deviations:

  • General corrosion and well corrosion (pitting)
  • Welding defects and/or weld geometry
  • Geometry and/or dimensions of object

Testing has a large application area, but is often applied to the following products:

  • Semi-finished products, such as staff and plate material, profiles and tubes;
  • Casting or forgings, such as pump housings, gears and bolts;
  • Lifting equipment;
  • Piping, fittings and/or welding in the petrochemical and/or food industry;
  • Welding in construction and shipbuilding;
  • Highly strained aircraft components, such as turbine blades, by means of borescope research;

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The training:


The training courses are provided at different levels. The content of these courses will therefore vary. To gain more insight into the training and the associated costs, you can choose the desired level below.

Level 1 only on request

Level 1 only on request


Level 2

Training Information Level 2


For whom

The training is set up and intended for (oncoming) NDT inspectors/operators for whom a qualification and/or certification is required. In addition, the training gives a detailed insight into the research, this is supporting information for each work planner, QC/QA & quality manager.

The following components are recommended for course participants:

  • A VMBO/MBO-3 prior education or similar.
  • Interested in engineering.
  • Technical English, to be able to read standards, specifications & procedures.

Structure

The training includes both a theoretical and a practical part. The training time will be divided 50/50 between the theoretical and practical part. During the training, under the supervision of experienced NDT specialists, the student will lay a foundation for future work.

The objectives

  • Familiarity with the basic principles and technical background of visual testing.
  • Be able to do visual testing using simple tools (direct/DVI) and more advanced tools such as the borescope (Indirect/RVI).
  • In addition, the interpretation and reporting of test results will be central.
  • Be able to draft a thorough work instruction in order to direct a level 1 operator.
  • Reading and interpreting procedures and/or specifications (mainly in English).
  • Assess whether the identified indications meet the acceptance criteria.
  • Drafting of test reports.

Content of the training

Basic knowledge of the NDO methods | Material defects (Defectology) and associated manufacturing techniques | The certification process/system | Physical principle of light | Functioning of the human eye | Perception and interpretation | Factors affecting visual testing | Equipment and Tools | Interpretation of obtained test results | Process and quality controls | Safety, environment and health

Practical information

Training duration ISO 9712:
Full Training (VT2): 7 days including exam, certification process via Hobéon SKNDO.
Visual examination of welding (VT2-W): 7 days including exam, certification process via Hobéon SKNDO.

Training duration SNT-TC-1A or EN 4179:
7 days including exam, exam report only. Final certification will have to be done by the company through its own Written Practice.

Exams:
The training meets and can be completed with an exam(-s) in accordance with the requirements of ISO 9712 or according to the requirements of the Written Practice of the own company (SNT-TC-1A and/or EN4179). The exam consists of a theoretical (general and specific) part and a practical part. Both the training and the exam(-s) are tailored to the relevant industrial sectors (e.g.: Testing before and during use (including manufacturing), aviation or railway maintenance.)

Costs (Excluding VAT):

The training and exam costs are shown below:

Training costs (VT2):
• Training Costs (VT2-W):
• Re-examination costs theory:
• Re-exam cost practice:
• Re-certification costs:

€ 2.671,- including examination**
€ 2.671,- including examination*
Price on request
Price on request
€ 1.660,- 2 day course including examination*

Notes:
* Prices include examination, certification examination according to Hobéon SKNDO, and the course days are fully catered.
**If a training is completed in accordance with several certification schemes (for example: ISO 9712 and SNT-TC-1A), no additional fees will be charged, provided this concerns a standard exam. If customer-specific questions (for SNT-TC-1A or EN 4179) need to be prepared, € 170.00 extra per exam will be charged for this exam(-s).

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Level 3

Training Information Level 3


For whom

The course is set up and intended for (the oncoming) NDT specialist for whom a qualification and/or certification is required. The course also provides an insight into the working methods of the testing.

The following components are recommended for course participants:

  • An MBO-4/HBO prior education or similar.
  • Knowledge of mathematics and physics.
  • Interested in engineering.
  • Technical English, to be able to interpret standards.
  • Preferably already having completed the BASIC module with a positive result or be in possession of a level 3 certificate in another method.

Structure

The training includes both a theoretical and a practical part (writing a technical procedure). The training time will be divided 80/20 between the theoretical and practical part. During the training, under the supervision of experienced NDT specialists, the student will lay a foundation for future work.

The objectives

  • Familiarize the student with in-depth knowledge of light, optics and technical background of visual testing.
  • Distinction and possibilities of the various test techniques, from observing an installation (direct/DVI) to more advanced research with borescopes (Indirect/RVI).
  • Special/new applications within visual testing.
  • Reading and interpreting certification related standards and/or procedures (mainly in English).
  • Be able to draft a thorough procedure in order to direct a level 2 operator.

Content of the training

Physical Principle of light | Functioning of the human eye | Perception and interpretation | Factors affecting visual testing | Optical components (mirrors, lenses, prisms, etc.) | Equipment and tools | Application possibilities & Latest techniques | Interpretation of codes, standards and/or specifications | Process and quality controls | Safety, environment and health

Practical information

Training duration ISO 9712:
6 days including exam, certification process via Hobéon SKNDO.

Exams:
The training meets, and can be completed with an exam(-s) compliant with the requirements of ISO 9712. The theoretical exam consists of 3 parts:

  • Part D: Principles, general knowledge level 3 of the method
  • Part E: Techniques & Specifications
  • Part F: Procedure Writing

Both the training and the exam(-s) are tailored to the relevant industrial sectors (e.g.: Testing before and during use (including manufacturing), aviation or railway maintenance.)

Costs (Excluding VAT):

The training and exam costs are shown below:

Training Costs:
• Re-examination costs theory:
• Re-exam costs writing procedure:
• Re-certification costs:

€ 2.794,- including examination*
Price on request
Price on request
Price on request

Notes:
* Prices include examination, certification examination according to Hobéon SKNDO, and the course days are fully catered.

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