Basic norms of interchangeability. Unified system of tolerances and fits. Series of tolerances, basic deviations and tolerance zones for sizes over 3150 mm
State system for ensuring the uniformity of measurements. Measurement microphones. Part 7. Values for difference between free-field and pressure sensitivity levels of laboratory standard microphones
State system for ensuring the uniformity of measurements. State verification schedule for means measuring maximum values of impulse electric and magnetic fields
