7 Determining moisture levels
■
17
En
gl
is
h
Solids:
• Distribute powder samples evenly on the weighing pan.
• Make course samples smaller using a mortar or grinder. Do not expose the sample to any heat while you
are grinding it as this will lead to a loss of moisture.
Liquids:
• You are advised to use a fiber glass filter for liquids, pastes or slurry samples. The fiber glass filter offers
the following advantages:
– even distribution on account of the capillary effect
– no formation of drops
– quick evaporation due to the larger surface
7.2.1 Preventing samples being encrusted
In order to avoid the sample becoming encrusted, solvent can also be added to the sample after the
measurement has started. The solvent added has no bearing on the final result of the measurement.
• Set in the Method\Dryer Control „Refill“ to „On“.
• The moisture analyser hood can be opened during the analysis
• After opening the sample chamber, you can add additional solvent at any time until the hood is closed.
Once the moisture analyser hood is closed, the measurement is continued. .
NOTE
The additional solvent is taken into account in the measurement printout because all the interim values are
calculated on the basis of the current weight value.
However, it has no bearing on the drying result because the solvent has completely dried off.
