State system for ensuring the unification of measurements. State special standard and state verification schedule for means measuring radiation field parameters of antenna systems with aperture dimensions from 5 to 100 m and of the airborne antennas within the frequency range from 0,3 to 3,0 GHz
Fiberglass reinforced thermosetting plastic pipes and part of pipelines. Methods for determination of the resistance to chemical attack for the inside of a section in a deflected condition
