State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 5. Equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz
Catalogization of products for federal state needs. The registration order for researchers, manufacturers and suppliers of products for federal state needs
State system for ensuring the uniformity of measurements. Standard reference data. Liquid water thermiophysical properties conditioned by the pressure at triple point up to 0,3 MPa over the temperature range from 0 °С to 100 °С