Fiber-reinforced thermosetting plastics pipes and parts of pipelines. Determination of resistance to short-time hydraulic pressure of plastic pipes and fittings
State system for ensuring the uniformity of measurements. State verification schedule for means measuring spectral density of radiance, spectral density of radiant intensity and spectral density of irradiance in the wavelength range of 0,25 - 25,00 mu; radiant intensity and irradiance in the wavelength range of 0,2 - 25,0 mu
