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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Table 6 Comparison of the effects of the thermal modification temperature using Duncan’s test on the b* value change process

From: Impact of thermal modification on color and chemical changes of spruce and oak wood

Temperature (°C) (1) 20.53 (2) 27.24 (3) 28.10 (4) 15.63 (5) 20.36 (6) 18.18 (7) 16.21 (8) 5.60
1 Spruce 20   0.000 0.000 0.000 0.000 0.000 0.000 0.429
2 160 0.000   0.000 0.000 0.943 0.014 0.000 0.000
3 180 0.000 0.000   0.002 0.000 0.000 0.000 0.000
4 210 0.000 0.000 0.002   0.000 0.000 0.000 0.000
5 Oak 20 0.000 0.943 0.000 0.000   0.015 0.000 0.000
6 160 0.000 0.014 0.000 0.000 0.015   0.130 0.000
7 180 0.000 0.000 0.000 0.000 0.000 0.130   0.000
8 210 0.429 0.000 0.000 0.000 0.000 0.000 0.000