State system for ensuring the uniformity of measurements. Standard reference data. Toluene, liquid and gaseous. Density, enthalpy, entropy, isochoric and isobaric heat capacities and speed of sound at temperatures from 180 K up to 700 K and pressures up to 100 MPa
State system for ensuring the uniformity of measurements. Medical ultrasonic diagnostic equipment. General requirements to methods of measurement of maximum of penetration and local dynamic range
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