Metrohm 893 Professional Biodiesel Rancimat - Manual (Page 40)

4.3 Determinations
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893 Professional Biodiesel Rancimat
￭ Clean the measuring vessel covers, the PTFE cannula and the
electrodes with acetone or 2-propanol or in the dishwasher and
thoroughly rinse with distilled water.
Pre-clean with dishwashing detergent in the case of severe con-
tamination.
Remove the protective ring to facilitate cleaning of the electrodes.
2 Cleaning the reaction vessels and accessories
￭ Dispose of used reaction vessels and air tubes and use new
reaction vessels and air tubes for the next measurement.
￭ Clean the reaction vessel covers with acetone or 2-propanol or
in the dishwasher and rinse with distilled water.
Pre-clean with dishwashing detergent in the case of severe con-
tamination.
￭ Then heat the reaction vessel covers in the drying oven for 2
hours at 80 °C.
NOTE
Replace the reaction vessel covers if they no longer sit tightly on
the reaction vessel or the material is brittle.
3 Cleaning the tubing
￭ Clean the Iso-Versinic ® tubing with acetone or 2-propanol or in
the dishwasher and rinse with distilled water.
Pre-clean with dishwashing detergent in the case of severe con-
tamination.
￭ Then heat the Iso-Versinic ® tubing in the drying oven for 2
hours at 80 °C.
4.3.4 Cleaning the oil separator
The oil separator is available as an optional accessory.