GOST R 56372-2015 Mixed feed, concentrates and premixes. Determination of mass fraction of iron, manganese, zinc, cobalt, copper, molybdenum and selenium by atomic absorption spectroscopy method
2015GOST R 56372-2015 Mixed feed, concentrates and premixes. Determination of mass fraction of iron, manganese, zinc, cobalt, copper, molybdenum and selenium by atomic absorption spectroscopy method