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[References: 19 tit.]

The paper describes the practical implementation of theidea of 3S: safety, security and safeguards synergy, whichwas widely discussed at the relevant forums, in particularat the Seoul summit. The idea was aimed at improving theefficiency of the cooperation between these elements,which have relatively large number of common points, butat the same time have their proper features. Careful consideration has showed that the sphere of non-destructivetesting is the most appropriate one to start 3S synergy implementation. Non-destructive testing methods and devices are widely applied in each S-element and could quiteoften be retargeted. The prototype of closure weld seamwas inspected by the means of standard ultrasonic echopulse method. However, the collected data was processedwith developed mathematical algorithm, that allows to usethis information for security and safeguard purposes astagging instrument. The main challenges for industrial application were defined.