... beech [ 12] . The colour of wood is an importantfactor for end user to consider and the price of wood is oftendependent on its colour parameter [23 ]. Causes and conse-quences of discolouration are ... (20 03) 22 1 22 6.[16] Bauch J., Discolouration in the wood of living and cut trees, IAWA5 (1984) 92 98.[17] Brändli U.B., Heller-Kellenberger I., Schweizerisches Landesfors-tinventar (20 02) ... DIN 521 86 Testing of wood; bending test, 1978.[8] DIN 521 82 Testing of wood; determination of density, 1976.[9] DIN 521 83 Testing of wood; determination of moisture content,1977.[10] DIN 521 84...