Transportable gas cylinders. Compatibility of cylinder and valve materials with gas contents. Part 4. Test methods for selecting steels resistant to hydrogen embrittlement
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
Electromagnetic compatibility of technical equipment. Radio communication equipment. Part 18. Specific requirement for terrestrial trunked radio (TETRA) equipment
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