Oven – Metrohm 899 Coulometer User Manual
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10 Appendix
899 Coulometer
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97
10.5
Method examples for working with the Karl Fischer
oven
You will find the recommended parameter settings for working with a Karl
Fischer oven in the following table. The methods can be used either with a
sample changer with oven module (e.g. 885 Compact Oven SC) or with a
Karl Fischer oven (e.g. 860 KF Thermoprep). The table contains only para-
meter settings that differ from the default values.
Parameters
Blank value
determination
(method tem-
plate Blank)
Water content
determination
(method tem-
plate KFC-Blank)
>Conditioning
Start drift
10 µg/min *)
10 µg/min *)
Stabilizing time
30 s
30 s
>Start conditions
Request sample size
off
off
Hold at request
off
off
>Titration parameters
Extraction time
180 s
180 s
Stirring rate
12
12
>Statistics
Statistics
on
–
Number of determina-
tions
3
–
>Reports
Results
on
on
Calculations/Statistics
on
–
*) If you work in an environment with high humidity, then we recommend
that the parameter Start drift be set to 20 µg/min.