DIN CEN/TS 15656
DIN CEN/TS 15656 Copper and copper alloys - Determination of phosphorus content - Spectrophotometric method; German version CEN/TS 15656:2009
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2010
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2010