MACHEREY-NAGEL visocolor ECO Chlorine Dioxide Test Kit User Manual
- June 3, 2024
- MACHEREY-NAGEL
Table of Contents
MACHEREY-NAGEL visocolor ECO Chlorine Dioxide Test Kit
Test kit for performing colorimetric tests on chlorine dioxide in drinking water, water reservoirs and disinfectant solutions.
Method
At a pH value of 5 to 6, chlorine dioxide reacts with N, N-diethyl-1,4-phenylenediamine (DPD) and forms a red-violet dye.
Measurement range
0.2–3.8 mg/L ClO2
Contents of test kit (refill pack)
sufficient for 150 tests
- 16 mL ClO2-1*
- 18 mL ClO2-2*
- 25 mL ClO2-3*
- 2 screw-plug measuring glasses
- 1 slide comparator
- 1 color chart
- 1 plastic syringe 5 mL
- 1 instruction for use
Hazard warning:
Information regarding safety can be found on the box label and in the safety
data sheet. You can download the SDS from www.mn-net.com/SDS.
Instructions for use
Also, refer to the pictogram on the back of the color chart
-
Pour a 5 mL water sample into both of the measuring glasses using the plastic syringe. Place one of them in position A in the comparator.
Only add the reagent to measuring glass B. -
Fill the second measuring glass with 2 drops of ClO2-1.
-
Seal the glass and mix.
-
Open the glass after 2 min and add 3 drops of ClO2-2, seal the glass, and mix.
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Add 3 drops of ClO2-3, seal the glass, and mix.
-
Open the glass once again and place it on position B in the comparator.
-
Slide the comparator until the colors match in the inspection hole on top. Immediately check the measurement reading in the recess on the comparator reed. Mid-values can be estimated.
-
After use, rinse out both measuring glasses thoroughly and seal them.
The reagents can also be used for the photometric evaluation with photometers
PF-12, PF-12Plus, and PF-3.
The method cannot be applied to the analysis of sea water.
Disposing of the samples:
Information regarding disposal can be found in the safety data sheet. You can
download the SDS from www.mn-net.com/SDS.
Interferences:
Free chlorine up to 5 mg/L is not determined with this procedure and thus,
does not interfere.
Storage:
Store the test kit in a cool (< 25 °C) and dry place.
MACHEREY-NAGEL GmbH & Co. KG
Neumann-Neander-Str. 6–8 · 52355 Düren · Germany Tel.: +49 24 21 969-0 · Fax:
+49 24 21 969-199 · info@mn-net.com · www.mn-
net.com.