Determination of Wood Density, GB/T1933Air dry densitometer,Wood full dry density meter,Wood Basic Density Tester

Measurement of basic density of wood: Definition of basic density: The total dry weight divided by the volume of wood at saturation moisture is the basic density.

Equipment: Wood, Oven, TaiwanMDJ-200SHeating equipment, wet towels, pure water, thermometer

Steps:

1 Place the wood sample in105Dry in a ℃ oven to a constant weight for approximately24After hours, take it out and place it in a dryer for later use

2、

3After calibration, measure the actual water temperature with a thermometer and set the water temperature compensation.、Gently put the anti floating frame onto the chlorophytum comosum and wait until it is stably pressed down

4zeroKey, weight reset to zero.、Quickly remove the dried wood and place it on the weighing platform. Wait for it to stabilize and press downmemoryKey, instrument screen displayR1

5, indicating the weight of the recorded sample in the air

6Wa.、Boil and saturate the dried sample using a heating device until it is in a saturated state. Wipe off excess moisture on its surface with a damp towel.、Place the saturated sample on the weighing platform and wait for it to stabilize before pressingmemory

7Key, screen displayR2, indicating that the instrument has recorded the weight of the sample in the air after waterproof treatmentWsa.、Turn the saturated sample into the anti floating frame of chlorophytum comosum and press

8memory

9Key, screen displayR3The weight value of the saturated sample in water is recorded

Wsw

.、After the instrument completes the calculation, the basic density of the wood is displayed.、pressFThe key can display data such as wet density, apparent density, apparent porosity, water absorption, open pore volume, closed pore volume, and total pore volume of wood.

Appendix:

The calculation formula for the basic density of wood:Wa*ρ water/ （Wsa-Wsw）Note: Sample saturation treatment can also be achieved through vacuum pumping or boiling saturation methods.To learn more information