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Non-destructive and destructive testing laboratory

Products’ technical safety and quality assessment issues are extremely important especially nowadays. To solve these challenges non-destructive testing is used.

In case more extended examination of welded joints is required by corresponding standards of client's technical requirements the laboratory can also conduct destructive tests.

With the necessity of improving product quality, reliability and safe operation of complex and potentially dangerous objects we use following non-destructive:

  • UT - Ultrasonic testing (Acoustic method of control)
  • RT - X-ray Inspection (radiographic testing method),
  • PT - liquid penetrant test the capillary testing method,
  • VT - visual inspection control (VIC)
  • MT - magnetic particle inspection (magnetic powder control).

and destructive testing methods:

  • Fracture test (FT)
  • Bend test (BT)

Methods of non-destructive testing have been proven useful in various sectors, for early identification of non-conforming products, as well as during their operation.

Experts of TIS International OÜ have extensive experience in this area, necessary skills and equipment to conduct testing.

Service Agreement

Service Agreement for inspection of equipment, buildings and constructions using non-destructive and destructive testing methods has to be signed off.

Filled in and signed off agreement to be forwarded to the following e-mail:

In case of open questions regarding agreement, terms and conditions please turn via e-mail to


To perform non-destructive testing of welded joints, please fill out an application. After filling out the application, also add the required types of control in the tab entitled "Forms of control”. When adding a form of control you can also specify the place of control.

Application for NDT

Application for DT

If you have questions on how to fill out the application form, please contact our staff.


In 2010, the company prepared all necessary documents and equipment for going through an audit and receiving accreditation according to EN 17025 by the following types of NDT:

  • radiographic testing
  • ultrasonic testing
  • magnetic particle testing
  • capillary testing
  • visual inspection

and DT:

  • Fracture test (FT)
  • Bend test (BT)

Confirmation of accreditation is found here.

Claim process

In case of any claims to TIS you can make a complaint.

The complaint should be clear and substantial. The complaint has to be submitted in a free form and shall contain at least the following information:

1. Name of the complaining company
2. Date
3. Contact person
4. Certification reference
5. Claim description
6. Contact person’s signature

TIS guarantees a prompt reaction for the complaint. You will receive a confirmation about receiving a complaint in 2 business days. The result will be promptly available.

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