(19)

(11)

EP 1 474 673 A1

(12)

(43) Date of publication: 10.11.2004 Bulletin 2004/46 (21) Application number: 03700833.1 (22) Date of filing: 03.02.2003

(51) International Patent Classification (IPC)7: G01N 1/20 (86) International application number: PCT/FI2003/000083 (87) International publication number: WO 2003/069313 (21.08.2003 Gazette 2003/34)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR Designated Extension States: AL LT LV MK RO (30) Priority: 14.02.2002 FI 20020295 (71) Applicant: OUTOKUMPU, Oyj 02200 Espoo (FI)	(72) Inventor: VON ALFTHAN, Christian FIN-02710 Espoo (FI) (74) Representative: Zipse + Habersack  Wotanstrasse 64 80639 München 80639 München (DE)