Extech Instruments MO220 User Manual page 13

Wood Type
Terminalia
Thuja
Tujopsis
Tieghamella
Tilia
Tilia
Triploehiton
Tsuga
Ulmus
Ulmus
Ulmus
Xylia
Zelkova
NOTES:
The calibration data in this table are based on standard tests by oven-drying of
commercial samples of the various wood species, between 7% and fibre saturation.
Above the fibre saturation point (25%-30%) readings are approximate and generally
apply to wood that has been dried and re-wetted.
The instrument is calibrated for wood at 68°F (20°C). If the temperature of wood
varies by more than 5°C, the meter reading can be corrected approximately by
adding 1/2% for every 9F (5°C) below 68°F (20°C) or subtracting 1/2% for every 9F
(5°C) above 68°F (20°C).
Readings higher by 1%-2% may be obtained where wood has been impregnated
with a water-borne preservative.
High readings obtained with some ply-woods of peculiar composition must be
treated with caution.
superba
plicata
dolabrat
heckelii
anericana
vulgaris
scleroxylon
heterophylia
amercana
procea
thomasii
dolabriformis
serrata
13
Grp
A
C
J
B
G
E
G
C
E
E
E
E
B
MO220 V1..2 4/10