109773
Cell Test
COD (Hg-free)
Chemical Oxygen Demand
Place the cell into the
cell compartment. Align
the mark on the cell with
that on the photometer.
Carefully pipette 2.0 ml
of the sample into a
reaction cell, close tight-
ly with the screw cap,
and mix vigorously.
Caution, the cell
becomes hot!
Heat the reaction cell in
the thermoreactor at
148 °C for 2 hours.
Remove the cell from
the thermoreactor and
place in a test-tube rack
to cool.
Swirl the cell after
10 minutes.
Replace the cell in the
rack for complete cooling
to room temperature.
Very important!
Measuring 100 –1500 mg/l COD or O
2
range: Expression of results also possible in mmol/l.
Release 06/2014 - Spectroquant
®
UV/VIS Spectrophotometer Pharo 300
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) w
e recommended to use
the Standard solution for photometric applications, CRM,
Cat.No. 125029, 125030, 125031, and 125032.
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