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16.6.1.
Density determining of liquids
The basic component needed for determining density of liquids is a glass sinker with
precisely determined volume, which value is indicated on sinker’s hook.
Before carrying out density determining process enter the sinker’s volume value to
balance’s memory.
The density determining process is based on comparing mass of the sinker, first by
weighing it in the air, and second by immersing it in the tested liquid.
The result of liquid density is automatically calculated by the balance software, and
indicated on its display.
The measurement result can be sent for multiple times to a connected printer or computer
via RS 232 interface and on pressing PRINT key
16.6.2.
Density determining of solids
Density of solids can be determined in one of three types of liquids:
−
WATER (distilled water),
−
ALCOHOL (spirit 100% +/- 0.1% in reference temperature: 20
°
C),
−
OTHER (another liquid with known density)
The density determining process is based on comparing mass of a sample, which is first
weighed it in the air (i.e. placed on the top weighing pan) and mass of the same sample
which is immersed in the liquid (i.e. placed on the bottom weighing pan of the density kit).
Based on obtained measurement results, the software calculates the density of tested
sample and indicates on the balance’s display. The measurement result can be sent for
multiple times to a connected printer or computer via RS 232 interface and on pressing
PRINT key
Detailed description of the density determining process is described in the user
manual attached to the kit for determining density of solids and liquids.
