MACHEREY-NAGEL visocolor ECO Chlorine Dioxide Test Kit User Manual

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

1. 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.

2. Fill the second measuring glass with 2 drops of ClO2-1.

3. Seal the glass and mix.

4. Open the glass after 2 min and add 3 drops of ClO2-2, seal the glass, and mix.

5. Add 3 drops of ClO2-3, seal the glass, and mix.

6. Open the glass once again and place it on position B in the comparator.

7. 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.

8. 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.

References

• MACHEREY-NAGEL Webshop | MACHEREY-NAGEL

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