Tantalum and its oxides. Spectral method for determination of aluminum, vanadium, ferrum, calcium, silicon, magnesium, manganese, copper, nickel, niobium, tin, titanium, chromium and zirconium
State system for ensuring the uniformity of measurements. State special standard and state verification schedule for means of measuring complex permittivity and complex permeability as well as reflection factor modulus at frequencies of 0,2 - 1,0 GHz
