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8. Calculating wood density
Calculating the density of a wood type can be
necessary when the wood type is not in the table in chapter
7 or when it is suspected that the local wood has the density
considerably different from the average for this type.
Follow these steps to calculate the density of the wood
type:
a)
cut a regular cube of the wood and measure it’s size
with the accuracy of 1 mm (e.g. 46 * 64 * 32) mm;
calculate it’s volume (in cm
3
)
V = a * b * h
(e.g. 94.2 cm
3
)
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source of errors and in extreme cases can prevent proper
calibration of the device.
Avoid measurements when the timber or the operator
of the device are loaded with high electrostatic charges.
Such charges (sparks) make measurements difficult and can
damage the instrument.
7. Density of selected wood types
Wood type(brand name)
Density
(g/cm
3
)
Abacji 0,35
Abura 0,53
Afara white
0,52
Afrormosia 0,65
Alder, Blackalder
0,51
Alerce 0,34
Ash common
0,65
Ash japanese
0,61
Ash white
0,64
Aspen, Poplar
0,45
Balsa 0,08
Basswood, Lime
0,49
Beech 0,68
Birch common
0,61
