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.
To order chemicals, medical devices, or other restricted products please provide ID that includes your business name & shipping address via email [email protected] or fax 484.881.5997 referencing your VWR account number. Acceptable forms of ID are:
- • State issued document with your organization's Federal Tax ID Number
- • State issued document with your organization's Resale Tax ID Number
- • City or County issued Business License
- • State Department of Health Services License
- • Any other ID issued by the State that includes the business name & address
* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. Avantor will not lift restrictions for residential shipping addresses.
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