State system for ensuring the uniformity of measurements. National standard. Standard reference data. Pyezokeramik on the LiaKbNacNbdTamSbnO3+z[Bi2O3–Fe2O3]. Dielectric and piezoelectric properties at a temperature of 25 °C
Safety requirements for electrical equipment for measurement, control and laboratory use. Part 031. Safety requirements for hand-held probe assemblies for electrical measurement and test