GOST 28024-89

Hard coals and brown coals. Method of sampling by boring holes

Aircraft. Hydraulic tubing joints and fittings. Rotary flexure test

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

System of the standards for safety of work

Instruments for process monitoring and control. General specifications

State system for ensuring the uniformity of measurements. State verification schedule for means measuring the spectral radiance and relative spectral distribution of radiating power in the wavelength range from 0,3 to 25,0 µm