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Official Journal of the Japan Wood Research Society

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