Electromagnetic compatibility (EMC). Part 3-14. Assessment of emission limits of harmonic, interharmonic, voltage fluctuation and unbalance for the connection of disturbing installations to LV power systems
Tantalum and its oxides. Spectral method for determination of aluminum, vanadium, ferrum, calcium, silicon, magnesium, manganese, copper, nickel, niobium, tin, titanium, chromium and zirconium