Non-destructive testing laboratory

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

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

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

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.

NDT Service Agreement

NDT Service Agreement for inspection of equipment, buildings and constructions 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 control

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 types of monitoring:

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

Confirmation of accreditation is found here.