DIN CEN/TS 15621 Animal feeding stuffs - Determination of calcium, sodium, phosphorus, magnesium, potassium, sulphur, iron, zinc, copper, manganese, cobalt and molybdenum after pressure digestion by ICP-AES; German version CEN/TS 15621:2007

standard by Deutsches Institut Fur Normung E.V. (German National Standard), 10/01/2007