Determining Density Using Pycnometer - RADWAG 4Y Serie Manual Del Usuario

5. Press field for entering weight value of aluminium mass standard, enter the value as provided in
its calibration certificate.
6. Press field for entering density value of steel mass standard, enter the value.
7. Press field for entering density value of aluminium mass standard, enter the value.
8. Press START field, air density determination begins.
9. Load the pan with steel mass standard, wait for a stable measurement result and press <
button.
10. Load the pan with aluminium mass standard, wait for a stable measurement result and press <
> button.
11. Density result is displayed.
12. Press < > button to complete the procedure.
The value of determined air density is automatically assigned to <Air density> parameter in
<Settings/ Air buoyancy compensation> menu for weighing working mode.

20.6. Determining Density Using Pycnometer

Prior the procedure start, it is necessary to set process-related parameters:
•
Pycnometer weight (if pycnometer weight is known, the measurement is carried out once
when the pycnometer is filled with substance).
•
Pycnometer volume.
The density of solids is calculated using the following formula:
ρ - density of a sample
A - sample mass measured in the air
B - sample mass measured in liquid
ρ
- liquid density
o
Procedure 1 – when the pycnometer weight has been entered
1. In order to record density value for a particular product in products database, go to <Settings>
menu, set <Assign density to product> parameter and press <Product> quick access button to
make the product active.
2. Press < Pycnometer> button.
3. Respective menu is displayed, using it set the following parameters: pycnometer weight,
pycnometer volume.
4. Press < START> button.
5. Process of density determination begins.
6. Fill in the pycnometer with tested substance, follow the pycnometer guidelines.
A
ρ ρ
=
o
−
A B
- 86 -
>