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TQCC NDT Training & Certification

Technology and Quality Control Centre (TQCC) was established in January 1999 in Central Greece (city of Volos) by M.K. Kotouzas, with the support of Lavender International NDT UK.



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Technology and Quality Control Centre (TQCC) was established in January 1999 in Central Greece (city of Volos) by M.K. Kotouzas, with the support of Lavender International NDT UK.

Lavender International NDT UK was founded in 1976 and is one of the official certification agencies of Great Britain, focusing on training and certification of companies and individuals in Non-Destructive Testing methods worldwide, providing Level 3 training and certification for various industrial sectors.

Our main area of business in Non Destructive Testing - Training and Certification to Level I, II and III.

The methods we teach are:

  • Visual Testing (VT)
  • Magnetic Particle Testing (MT)
  • Penetrant Testing (PT)
  • Ultrasonic Testing (UT)
  • Radiography Testing (RT)
  • Eddy Current Testing (ET)
  • Welding Inspector (WI)

The courses are accredited by The British Institute of Non-Destructive Testing (BINDT) and the Hellenic Society for Non-Destructive Testing (HSNT).

The British Institute of NDT (BINDT) was founded in 1954. Several reports indicate that the first time that NDT methods were used was during the First World War, mainly in the military air force. This led to the creation of the pioneering certification center of BINDT in 1954.

The Hellenic Society for Non-Destructive Testing (H.S.N.T.) is a member of E.F.N.D.T. (European Federation of NDT-1998) as well as a member of I.C.N.D.T. (International Committee of NDT-1989). The H.S.N.T. is recognized internationally as the national certification agency for NDT of Greece.

The examination certificates in accordance with ASNT/SNT-TC-1A are issued by Lavender International NDT Ltd.

The certification in accordance with EN473/ISO 9712 is offered by The British Institute of Non-Destructive Testing (BINDT/PCN) or the Hellenic Society for Non-Destructive Testing (HSNT).

Products & Services
Continuing training of industrial personnel

TQCC also provides the following courses:

Quality Management and Assurance

  • Analysis of ISO 9000 series requirements
  • Internal and External Audit of Quality Systems
  • Development of Quality Manual and Procedures
  • Statistical Quality Control, Statistical Process Control

Materials Technology

  • Metallurgy for non-metallurgists
  • Mechanical behavior of metals and alloys
  • Metallography-Crystallography
  • Technology of steels and cast irons
  • Thermal and surface treatments
  • Oxidation, Corrosion and Protection
  • Materials failure
  • Non-ferrous industrial alloys
  • Welding Technology
  • Consumables
  • Mechanical properties of Welds
  • Welding Technology of Steel
  • Welding Technology of non-ferrous metals

TQCC can also supply a variety of courses on various subjects, according to the specific needs of the client.

Consultancy services

Industrial Sectors

  • Power Generation
  • Oil & Gas (Onshore and Offshore)
  • Military Structures
  • Metallic Structures
  • Marine
  • Railway
  • Automotive
  • Aerospace

 Non-Destructive Testing

TQCC’s qualified NDT consultants hold Level 2 and Level 3 qualifications in a variety of NDT methods and techniques according to EN ISO 9712, ASNT, NAS 410, ΕΝ ISO 4179.

Our consultants can support any of the following:

  • Acting as responsible Level 3
  • Development, review and approval of NDT written procedures
  • Authoring of written practices
  • Supervision of NDT tests, including re-tests and verification of NDT findings
  • Auditing and audit preparation
  • Dispute arbitration
  • NDT process integration
  • Internal/external audits of NDT laboratories and departments
  • NDT audit preparation
  • Consultancy on the development of NDT laboratories
  • Verification of NDT equipment 

Advanced Ultrasonic Testing Consultancy Services

TQCC’s consultancy team specializes in ultrasonics, offering the following services specifically for Conventional, Phased Array (PA), and TOFD ultrasonic inspection:

  • Development of specialized techniques and procedures
  • Scan Plan development
  • Analysis and validation of inspection results
  • Technical justification of UT procedures

 Advanced Electromagnetic Consultancy Services

TQCC is one of the few NDT companies that offers consultancy servicesin Electromagnetic NDT techniques such as:

  • Eddy Current Testing (ET or ECT)
  • Magnetic Flux Leakage Testing (MFL)
  • Remote Field Testing (RFT)
  • Near-Field Testing (NFT)
  • Eddy Current Array (ECA)
  • ACFM

 Materials & Welding Technology

Our Welding engineers offer expert consultancy services, in all welding techniques, according to the requirements of a series of standards and codes (ASME, AWS, API, ISO, DNVGL).

The scope of services includes:

  • Supervision and coordination of welding qualification tests
  • On-site welding surveillance and audits
  • Training, qualification, and supervision of welding personnel (welders and welding operators)
  • Welding workshops
  • Establishment and coordination of Quality Assurance System (acc. ISO 3834, EN 1090)
  • Development of welding procedures
  • Design of welding (including selection of suitable consumables & techniques)
  • Quality Plans (Inspection and Test Plans)
  • Preparation of final welding documentation for product acceptance
Training methods

NDT are based on the principles of Physics and examine the surface and the interior of pieces and constructions without harming their serviceability. The equipment and the consumables required can be easily transported and have low to medium cost.

Indications like the accumulation of magnetic particles (MT), the bleed out of penetrant (PT), the returning ultrasound signal (UT) and the disturbance of electric fields, inform us about the nature and the severity of the findings.

Training, experience and knowledge of the part under testing, contribute decisively to the outcome and reliability of the inspection.

Next we shall present the basic Non Destructive Testing methods, with emphasis to the applications, the advantages and the limitations of each method (radiography, penetrant testing, magnetic particle testing, eddy current testing and ultrasonic testing).

  1. Visual Testing (VT)
  2. Magnetic particle Testing (MT)
  3. Penetrant Testing (PT)
  4. Ultrasonic Testing (UT)
  5. Radiography Testing (RT)
  6. Eddy current Testing (ET)
  7. Welding Inspector (WI)
  8. Phased Array (PA)
  9. Macro Etch Inspection (MIE)
  10. Time of Flight Diffraction (TOFD)
  11. Acoustic Emission (AE)
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