Species

Wood density (kg/m³)

Gross calorific value (MJ/kg)

Volatile matter

(%)

Ash content

(%)

Organic carbon (%)

N (%)

H (%)

S (%)

C. pentandra

409.22

20.33

82.43

4.7248

55.26

0.4817

5.30

0.0458

T. scleroxylon

450.62

21.60

80.97

2.0119

56.83

0.5600

4.08

0.0919

A. robusta

572.64

20.89

75.23

5.0407

55.08

0.4813

3.83

0.2142

T. superba

570.08

22.22

79.64

2.9574

56.29

0.6213

3.88

0.0561

P. africana

744.89

22.17

80.60

0.6075

57.65

0.7133

4.20

0.0475

C. mildbreadii

764.11

20.16

83.70

3.7077

55.85

0.6917

4.21

0.0572

Austria ÖNORM M7135

≥18.0

≤6.0

-

≤0.6

≤0.08

Germany DIN 51731/DINplus

17.5 - 19.5

<1.5%

-

<0.3

<0.08