Titrimetric rapid tests, hardness, VISOCOLOR®

Supplier: MACHEREY-NAGEL

915202 915203 915205 931014 931029 935016 935042 915002 915003 915005
MANA915202EA 96.3 SGD
MANA915202 MANA915203 MANA915205 MANA931014 MANA931029 MANA935016 MANA935042 MANA915002 MANA915003 MANA915005
Titrimetric rapid tests, hardness, VISOCOLOR®
Environmental Test Kits

The VISOCOLOR® testkits are devided into VISOCOLOR® alpha, ECO and HE. Every product range offering its specific strenght to provide a tailored test for each and every user and application.


  • Portable
  • Environmentally friendly
  • Convenient handling
  • Application-oriented measuring ranges


Total hardness or water hardness is defined as the sum of the concentrations of all alkaline earth ions dissolved in an aqueous sample. However, since, strontium and barium ions are contained only in traces and therefore play only a minor role as hardeners, the definition according to the German norm DIN 38409-H 6 was adopted. According to this standard, the hardness is characterized only by the molar concentrations of calcium and magnesium ions in mmol/l.


The term carbonate hardness describes the amount of magnesium and calcium ions for which equivalent molar amounts of hydrogen carbonate are available in the solution.

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