GSI SLV-TR has been established in Ankara as the Turkey office of GSI SLV* company of the German Welding Society (DVS). It is currently continuing its activities in the scope of the authorities and accreditations of the EC(NANDO) and TURKAK on EN 1090-1 field. GSI SLVTR was certified as an “Authorized Training Body (ATB)” in 2012 by the Turkish Authorized Notified Body (TR-ANB) in the field of welding technique.

The GSI SLV-TR is active on the fields of education, consulting, giving expertise, research development, and trial testing. Furthermore, it aims an intensive technology transfer between Germany and Turkey thus assuring a high extent of competence on the field of welding, cutting and testing.

GSI SLV-TR was accredited by the Turkish Accreditation Body (TURKAK) in 2011 regarding Personnel Certification and was certified as an "Authorized Training Body (ATB)" in 2012 by the Turkish Authorized Notified Body (TR-ANB) in the field of welding technique.

* Gesellschaft für Schweißtechnik International mbH


  • Certification of Companies / Quality Systems:

    This is the process where companies performing welded production in different fields are certified according to internationally valid and highly esteemed standards. The certification process also covers the systems where technical capabilities are certified as well as the certification of the quality management systems. Especially the systems where the qualification of the manufacturer is assessed and certified is of great significance for the companies that desire to cooperate with European states.

    GSI SLV-TR provides the certification services summarized below in the framework of ECWRVi, TÜRKAKii and ECiii.

    1. EN 15085: Compliance / qualification certificate for rolling stock (railway vehicle) manufacturing:

      In order to export railway vehicles, components thereof and relevant services to the European states, the companies performing activities in this field need to be certified.

      The certification can only be made by bodies and persons authorized by the relevant official institutions (EBAiv in Germany). The companies certified in this manner are ratified by ECWRV (European Committee for Welding of Railway Vehicles) and listed online. GSI SLV-TR is the only Turkish MCBv in ECWRV system.

    2. EN 1090: Steel and Aluminum Structure Applications:

      This is a series of standards defining the requirements for the production of steel and aluminum structures and their CE marking.

      • EN 1090-1: Requirements for the compliance audit of structural element
      • EN 1090-2: Technical requirements for steel structures
      • EN 1090-3: Technical requirements for aluminum structures

      The certification can only be made by notified bodies and persons authorized by the relevant official institutions.

    3. DIN 18800-7 ve DINv 4113-3: Compliance assessment of the manufacturer for steel and aluminum structures:

      In DIN EN 1090 series of standards, the related certification is only made depending on the request of the client. However, the validity of DIN 18800-7 / DINv4113-3 systems (The phase of co-existence with EN 1090) has been extended to July 2014 in Germany.

      The certification can only be made by bodies and persons authorized by the relevant official institutions (DiBt in Germany).

    4. Ril 804: Production of railway bridges:

      This is the system where the companies wishing to manufacture welded railway bridges are certified. This is a certificate granted to the companies, holding a DIN 18800-7 Class "E" compliance certificate for the production of steel structures, after they also fulfill the requirements of Ril 804 standard. This is a standard that is especially highly-demanding in terms of personnel qualification requirements (production engineering - welding, welding engineering).

    5. ISO 3834: Quality Management System for enterprises performing welded production

      This is a quality management system designed for enterprises performing welded production. This is a system that is also necessitated by applications such as DIN 18800-7, EN 15085, EN 1090, etc. One of the prerequisites to obtain both of the certificates is for the enterprise to possess a quality system compliant to ISO 3834 standard.

      The enterprises that have established and certified their compliance to ISO 9001 system can easily adapt to ISO 3834 system with a few simple activities since both standards contain similar requirements. However, ISO 3834 standard is prepared specially by considering the requirements of enterprises making welded production.

      The certification is conducted internationally through DVS-ZERTvi or SLVvii.

    6. ISO 9001 Quality Management System (DVS-Zert):

      ISO 9001 certification is conducted internationally through DVS-ZERT.

  • Personnel Training:

    The trainings and certification process is conducted in cooperation with GSI SLV. As a result of the audit completed successfully in June 2012, GSI SLV-TR is at the ratification phase of becoming an "authorized training body" under TR-ANB. Following the ratification process, the certifications within the scope of TR-ANB shall be provided directly by TR-ANB.

    1. International Welding Engineer (IWE), International Welding Technologist (IWT) Diploma Trainings:

      GSI SLV-TR is the first to provide International Welding Engineering (IWE) and International Welding Technologist (IWT) trainings in the form of computer-aided blended training. The training was prepared by using all the related infrastructure of GSI SLV which is one of the main elements of the structure of the German Welding Society (DVS) and among the biggest and most esteemed institutions worldwide in the field of training in welding techniques.

      50% of the training duration, which is 435 hours in total, is made as computer-aided and the remaining 50% is held in classes face-to-face. The face-to-face lessons are distributed over the weekends. In this way, the pressure on the business work hours has been eliminated. The computer-aided training parts shall be conducted using CD-ROMs awarded as the "Best multimedia document" by the International Institute of Welding.

      The attendants passing from the written and verbal exams to be held after the trainings shall be entitled to receive an internationally valid diploma according to the directives (IIW IAB-252-11) of the International Institute of Welding (IIW).

      The trainings are provided according to the training system of GSI SLV by expert instructor staff of GSI SLV-TR and relevant institutions.

    2. Welding Inspection Personnel (Inspectors):

      Another issue that is as important as the good welding being made by trained and certified welders is the fast and effective control of the welded connections. This can only be realized by well-trained and certified personnel.

      With this aim, our company provides "International Welding Inspection Personnel" (IWIP) training programs (according to the DVS-IIW/EWF 1178 (IAB-041) regulation), with rules defined by IIWviii, in the framework of the cooperation with again GSI mbH. The program contains modules suitable for both engineers and intermediate personnel (technologists, technicians).

      The attendants passing from the written and verbal exams to be held after the trainings shall be entitled to receive an internationally valid diploma according to the directives (IIW IAB-252-07) of the International Institute of Welding (IIW).

      The trainings are provided according to the training system of GSI SLV by expert instructor staff of GSI SLV-TR and relevant institutions.

    3. Welders:

      The welders are subjected to a test in the scope of the below-stated standards and the successful welders are certified with an internationally valid certificate with the cooperation of GSI mbH.

      1. EN ISO 9606-1: Steel Welders
      2. EN ISO 9606-2: Aluminum Welders

        Tests and certification is also made in the scope of and required by the following standards as well.

      3. AWS D1.1, D1.2
      4. ASME (various sections)
      5. Military standards (for several applications)

      Applied trainings, backed up with theoretical classes, are being organized for welder candidates that have not yet started their welding career or welders that are not adequately capable in certain welding procedures and applications. These trainings can be organized in the framework of the standard programs of GSI firm, being a worldwide leader in the field of welding, or they can also be planned and applied according to the requirements.

    4. Informative Seminars:

      These are the seminars provided by our experts in the fields requested and required by the companies. New seminars can also be organized depending on emerging needs.

  • Welding Procedure Specification Approvals:

    The procedure specification approvals made to ensure the reliability of the welding applications (WPQR / WPAR) are conducted in the scope of an international accreditation with the cooperation of GSI mbH as per the following standards.

    1. DIN EN ISO 15610 – 15614 series,
    2. AWS D1.1, D1.2
    3. ASME (several sections)
  • Supervision and Welding Engineering:

    The following services can be provided by our experienced experts, according to the requirements of the application standards and/or specification requirements, with the cooperation of GSI mbH and in the scope of an international accreditation.

    1. Supervision/audit of the welds and jointed works during production and assembly (3rd party supervision services),
    2. Welder and welding operator tests, certification and acceptance,
    3. Final acceptance of steel structures,
    4. Supervision / audit of corrosion protection activities
    5. General Welding Engineering
      1. Production order preparation,
      2. Personnel planning according to the project requirements (employing the correct certified personnel at the correct place),
      3. Preparation of the Inspection and Test Plans (ITP),
      4. Control of production documentation,
      5. Fault removal, damage analyses

i European Committee for the Welding of the Railway Vehicles
ii Turkish Accreditation Agency
ii European Commission
iv Federal Railway Authority
v Manufacturer Certification Body
vi German Welding Society Certification Center
vii Welding Technique Training and Research Center
viii International Institute of Welding
Commercial Title: GSI SLV-TR KAYNAK TEKNOLOJİSİ TEST VE MESLEKİ GELİŞİM MERKEZİ LTD. ŞTİ.
Address: ÇİĞDEM MAH. GÖKKUŞAĞI SİT. MAVİ BLOK NO:37-38 06520 BALGAT/ÇANKAYA-ANKARA
Tax Office: BAŞKENT TAX OFFICE
Tax ID Number: 4110352712
Enrolled Trade Registry Office and Number: ANKARA TRADE REG. DIR. – TRADE REG.NO:258913
Enrolled Chamber/Registry No: ANKARA CHAMBER OF COMMERCE- 65/2967
Committed Capital Amount: 180.000,00 TL
Paid-up Capital Amount: 180.000,00 TL
Name and Surname of Company Manager: İSFENDİYAR ÖZGÜR AKÇAM