Density Determination Kit - AND EJ-120 Instruction Manual

9-6. EJ-13 Density determination kit
Using this option and calculation program, the balance can determine the density
(specific gravity) of a sample.
EJ-13 is for use with the EJ-120 / EJ-200 / EJ-300 / EJ-410 / EJ-610.
EJ-13 Installation
Remove the weighing pan and the
fixing frame.
Install the beaker stand on the balance
and attach the pan stand to the pan
support of the balance.
Sample weighing pan
Beaker stand
Place a beaker filled with water on the beaker stand and place the sample weighing
pan on top of the pan stand.
Density (specific gravity) measurement
The density for a liquid can be set two ways. One is to set the water temperature
and the other is to set the density value directly.
The factory setting for density of a liquid is 25 °C as water temperature (the density
value, ρ = 0.99704 (g/cm
The density (specific gravity) is calculated by the following formula.
S =
The result is shown with two decimal places.
Upper pan to weigh in air
Pan stand
Lower pan to weigh in water
3
), is used for calculation).
A
X ρ S: Density (specific gravity) of a sample
A-B
A: Weight in air
B: Weight in liquid
ρ: Density of liquid (water)
Fixing frame
Pan support
27
Weighing pan