109773
Cell Test
COD (Hg-free)
Chemical Oxygen Demand
Measuring range: 100–1500 mg/l COD or O
2
16-mm cell
Carefully pipette 2.0 ml
of distilled water into a
second reaction cell,
close tightly with the
screw cap, and mix vigor-
ously.
Caution, the cell
becomes very hot!
(Blank cell)
Select method 1 6 7 .
Insert the cell containing
the sample into the cell
compartment. Align the
mark on the cell with
that on the photometer.
Press Test .
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 very hot!
Heat both cells in the
thermoreactor at 148 °C
for 2 hours.
Remove both cells from
the thermoreactor and
place in a test-tube rack
to cool.
Swirl both cells after
10 minutes.
Replace both cells in the
rack for complete cool-
ing to room temperature.
(Very important!)
Insert the blank cell into
the cell compartment.
Align the mark on the
cell with that on the pho-
tometer. Press Zero .
Release 08/2014 - Spectroquant
®
Multy
Quality assurance:
To check the measurement system (test reagents, meas-
urement device, and handling) we recommended to use
the Standard solution for photometric applications, CRM,
Cat.No. 125029, 125030, 125031, and 125032.
