We report the results by conducting the tests and inspections required by the resistance standards with our expert staff. We provide testing, inspection and certification services to all of the following standards. 

TS EN 61643-311 Complaints about low voltage shock protection devices-Section 312: Selection and usage rules for gas-evacuated tubes 

TS EN 61643-312 Components for low-voltage shock protection devices - Part 311: Specification for gas discharge tubes 

tst EN 61643-311 Components for low-voltage shock protection devices - Part 311: Selection and application rules for gas discharge cylinders 

tst EN 61643-312 Components for low-voltage shock protection devices - Part 312: Specification for gas discharge tubes

TS EN 61643-351 Components for low-voltage shock protection devices - Part 351: Performance requirements and test methods of impact isolating transformers (SITs) for telecommunication and signaling networks