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
State system for ensuring the uniformity of measurements. Norms of measurement accuracy and acceptance of the values in the field of atomic energy use. Establishment and application
State system for ensuring the uniformity of measurements. Testing equipment for determination respiratory protective devices total inward leakage with using test aerosol. Verification method
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