DIN CEN/TS 15297
DIN CEN/TS 15297 Solid biofuels - Determination of minor elements; German version CEN/TS 15297:2006
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2006
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2006