State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 3. Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
State system for ensuring the uniformity of measurements. Method of measurements of relative dielectric permittivity and tangent of dielectric dissipation angle of solid dielectrics made of thin leafed materials in the frequency band from 9 to 10 GHz
Radionuclide sources of alpha-, beta- and photon radiation. Technical requirements to standards for the calibration, verification of surface radioactive contamination monitoring devices (monitors)
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