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Official Journal of the Japan Wood Research Society

Table 1 Measurement results for the density, effective refractive index and loss of birefringence of thermally modified Scots pine

From: Detection of the effective refractive index of thermally modified Scots pine by immersion liquid method

 

Untreated

180°C

200°C

230°C

Density (kg/m3)

562

392

528

487

Effective refractive index

1.553

1.578

1.587

1.596

Change of effective refractive index

 

0.025

0.034

0.043

Relative change of effective refractive index (%)

 

1.61

2.19

2.77