Merck Spectroquant Picco COD/CSB, Manual

Page: 33 / 83

Release 03/2009 33
en
Spectroquant
®
Colorimeter Picco COD / CSB
6 Methods
6.1 Brief instructions
•
Procedure
The procedure is carried out as described in the package insert for the corresponding
test kit.
The measurement can be made only in the cells for the corresponding test kits.
The colorimeter requires a blank sample prior to the actual measurement. For this purpose a
measurement solution must be prepared with distilled water instead of the sample for the
respective test kit.
•
Measuring wavelength
λ
= 430 nm (LED + filter) for 114540
605 nm (LED) for 114541, 114691, 114555
•
Measurement accuracy
+ 3.5 % (from the end value of the measuring range)