MACHEREY-NAGEL VISOCOLOR ECO Test kit/ free Chlorine 2 VISOCOLOR ECO presents a product group of colorimetric and titrimetric test kits which avoids hazardous substances wherever possible. With VISOCOLOR ECO even water constituents with low limiting values can be determined with sufficient accuracy. All VISOCOLOR ECO test kits are packed in an environment-friendly box and contain easy to understand instructions in 6 languages.
Colorimetric Tests Principle: Colorimetry with color comparison card
- visual and photometric evaluation
- (with PF-12 / photino)
- environment-friendly
- economically priced
- convenient handling
- higher accuracy and sensitivity
- with pictographic instructions
- reagent bottles with clear dosing instructions c
- ompensation of turbidities and colors
- refill packs available
Titration Tests Principle: Titration with drop counting
- visual evaluation
- environment-friendly, without toxic reagents
- economically priced
- convenient handling
- higher accuracy and sensitivity
- sharper color change due to separated
- dropping reagents
- reagent bottles with clear dosing instructions
MACHEREY-NAGEL VISOCOLOR ECO Test kit free Chlorine 2 Colorimetric determination of free chlorine
At a pH value of 5 - 6 free chlorine reacts with N,N-diethyl-1,4-phenylene diamine (DPD) to form a red-violet dye. (Reaction basis according to DIN EN ISO 7393 G4-2)
The addition of chlorine to swimming pools, water reservoirs and water mains is an approved procedure to rid the water of germs. With the correct dose harmful microorganisms are destroyed, many impurities removed and the growth of algae is prevented. However it is imperative that the chlorine content is regularly checked, since excessive chlorine not only impairs the smell and taste of the water but can be hazardous.
One distinguishes between free chlorine and bound chlorine (chloroamines); the sum of both is called total chlorine.
The determination of free chlorine includes the concentrations of bromine, bromoamine, chloroamine, iodine and in part chlorine dioxide. 1,0 mg/L Cl
2 = 2,3 mg/L Br
2 = 3,6 mg/L I
2 Higher-valency manganese compounds simulate free chlorine.
Trade mark rapid tests:
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VISOCOLOR
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Rapid tests:
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chlorine, chloridetest refill
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Shipping weight: |
1,00 Kg |
Product weight: |
0,20 Kg |