
Cooper N°2 test tablets for the photometer for measuring copper levels in pool water. First, the free copper content is measured using the Copper N°1 reagent. Then the Copper N°2 reagent is added to the Copper N°1 reagent, and the total copper content is measured.
There are various reasons for measuring copper levels. In the case of drinking water, copper measurements are carried out to determine the quality of the drinking water. There are no official maximum permissible values for copper in drinking water, but recommended values are between 2 - 3 mg/l. Copper is a trace element and is therefore essential for human life. A daily intake of 0.05 – 0.5 mg/kg of body weight is considered acceptable. However, copper is considered harmful to organisms, which is “positively” used in swimming pools to combat algae and bacteria in the form of copper-containing algaecides. However, algaecides containing copper sulfate also have their disadvantages, such as possible discoloration of hair, staining of swimwear, and even corrosiveness and sedimentation of copper acetate. Copper is released into drinking water, for example, from copper pipes. The “Copper/Zinc LR” tablet measures both copper and zinc at the same time, which is how zinc is eliminated from the reaction via the EDTA tablet contained in the kit before both individual values are obtained. The “Dechlor” tablet prevents deviations in measurement when the residual chlorine content is high.