(19)
(11) EP 0 723 656 A1

(12)

(43) Date of publication:
31.07.1996 Bulletin 1996/31

(21) Application number: 95920348.0

(22) Date of filing: 17.05.1995
(51) International Patent Classification (IPC): 
G01N 21/ 35( . )
G01N 33/ 34( . )
(86) International application number:
PCT/SE1995/000560
(87) International publication number:
WO 1995/031710 (23.11.1995 Gazette 1995/50)
(84) Designated Contracting States:
DE FR GB SE

(30) Priority: 18.05.1994 SE 19940001707

(71) Applicants:
  • Sjöberg, Kjell
    S-182 34 Danderyd (SE)
  • Björklund, Christer
    S-181 83 Lidingö (SE)
  • Karlsson, Mikael
    S-113 50 Stockholm (SE)
  • Olsson, Ralf
    S-112 42 Stockholm (SE)

(72) Inventors:
  • Sjöberg, Kjell
    S-182 34 Danderyd (SE)
  • Björklund, Christer
    S-181 83 Lidingö (SE)
  • Karlsson, Mikael
    S-113 50 Stockholm (SE)
  • Olsson, Ralf
    S-112 42 Stockholm (SE)

(74) Representative: Henningsson, Gunnar 
AWAPATENT AB, Box 45086
S-104 30 Stockholm
S-104 30 Stockholm (SE)

   


(54) SPECTROPHOTOMETRIC METHOD TO MEASURE QUALITY AND STRENGTH PARAMETERS IN TREES, LUMBER, TIMBER, CHIPS, SAW DUST, PULP AND PAPER