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This precise total hardness water test is highly suitable for the use in aquaristics and stands out especially by its long useful life and the great number of tests that are possible.
Complexometric titration(basis for the reaction in analogy to DIN 38406-3 E3) Copper(II) ions can delay the indicator colour change and, if the concentration is higher, even block it totally. If you use tap water from copper pipes, please drain a sufficient amount of water before testing.
Total hardness of the water is based on its content of alkaline earth ions (calcium and magnesium ions). This content depends on the geological conditions in the source area of the water and the area it passes through afterwards, and it differs from region to region. Knowing the total hardness is important when water is used for industrial and municipal purposes, e.g. in the household for washing or for feeding boilers in industry. Residual hardness plays a role when boiler feed water in steam boiler systems, drinking water and rainwater need to be tested.
- Measuring range: 1 drop = 1 °dH
- Sufficient for 110 tests at an average hardness of 10 °dH
- Suitable for seawater: yes, after dilution (1+29)
- Not suitable for PF-12
Safety information in accordance with GHS
Signal word: Warning
- H226 Flammable liquid and vapour.
- H315 Causes skin irritation.
- H319 Causes serious eye irritation.
The Germany company Macherey-Nagel GmbH & Co. KG has a long tradition, as it was founded in 1911. This company is an important manufacturer of chemical analytic products for professional use. Due to its specialisation in water tests, Macherey-Nagel is able to offer a vast product range particularly suitable for aquascapes and planted tanks. In the aquascaping and planted tank hobby, the colorimetric line of water tests Visocolor has gained a very good reputation, as these tests are very exact and have a long useful life.
Compared with many water test manufacturers that produce purely for aquaristic purposes, the knowledgeable customer service offered by Macherey-Nagel is on another level. This company helps their customers very well should they happen to run into a problem. For those interested in precise water tests the products by Macherey-Nagel are recommended as they will definitely meet their expectations.