State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 1. Reference equivalent threshold sound pressure levels of pure tones for supra-aural earphones
State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring the radiance and radiant intensity of heat sources within temperature range of 220 - 1360 K
Information technology. Radio frequency identification for item management. Part 6. Рarameters for air interface communications at 860 MHz to 960 MHz. General
