State system for ensuring the uniformity of measurements. Means of measuring spectral density of radiance, spectral density of radiant intensity and spectral density of irradiance in the wavelength range of 0,2-25,0 mkm. Verification procedure
Connecting devices for low voltage circuits for household and similar purposes. Part 2-5. Particular requirements for connecting boxes ( junction and/or tapping of copper conductors) for terminals of connecting devices
