State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring temperature coefficient of linear expansion in the range 4,2-90 K
State system for ensuring the uniformity of measurements. Standard reference data. n-Undecane. Thermophysical properties (density, heat capacity, enthalpy, entropy, sound velocity, thermal conductivity and viscosity coefficients) for the temperature range from the triple point to 700К at pressures up to 100 MPa
