Technical Data Sheet
Test kit VISOCOLOR® ECO Carbonate hardness
Goods manufactured in Germany
ADR 9 II
UN-Nr. 3316
€53.30/Pack Qty.
excl. VAT. | 1 unit(s) per Pack Qty.
Art. No. T367.1
Product details
The product line covers colorimetric, as well as titrimetric procedures. ECO test kits are suitable for analysing substances in the water with low limit values, whereby environmentally hazardous and toxic substances are largely eliminated. Very easy to operate using the pictograms.
Test kit VISOCOLOR® ECO Carbonate hardness
Titrimetric procedure.1 drop = 1 °dGH (corresponds to 18 mg/l CaCO3)
| Verification of | Carbonate hardness |
| Gradation | 1 °dH µg/m³ |
| No. measurements | 100 |
- Subtotal: 0.00
| Art. No. | Pack Qty. | Price | Quantity | ||
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| T367.1 | 1 unit(s) |
€53.30 |
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Available from stock Karlsruhe
In procurement
No longer available
Delivery date currently unknown
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- Subtotal: 0.00
Downloads / MSDS
General information
Determination of Water Hardness
Water contains a whole host of salts and other compounds in addition to the gases dissolved in it (oxygen, nitrogen, carbon dioxide). Its most important constituents are magnesium and calcium in the form of their chlorides, sulphates and bicarbonates. These dissolved salts are known as hardeners. The bicarbonates precipitate in the heat (during boiling) as carbonates and are known as carbonate hardness or temporary hardness. The sulphate and chloride compounds are known as permanent hardness or non-carbonate hardness. Total hardness describes the concentration of alkaline earth metal ions in water.
The unit of measurement for water hardness used to be 1 °dH (German degrees of hardness), which corresponds to 10,00 mg CaO or 7,19 mg MgO in one litre of water. Today we use millimoles per litre (mmol/l), whereby 1 °dH corresponds to 0,18 mmol/l of earth metal ions and 1 mmol/l corresponds to 5,6 °dH.