Test sticks for the semi-quantitative determination of hydrogen peroxide (H 2 O 2 ) and peroxides in solutions
Gradation of scale: 0-50-150-300-500-800-1000 ppm
These test sticks have an additional warning test field, which changes color, when the concentration exceeds 2000 mg/l, because, in such excessive concentration, a color change can occur, which corresponds to a much lower value on the color chart.
The following ions interfere in higher concentrations:
- 1000 mg/l formaldehyde
- 500 mg/l Ca+2
- 100 mg/l Ascorbate, free chlorine, bound chlorine, Sulfite
- 87.5 degrees e: Total hardness
In the presence of free and bound chlorine, the warning test field forms a blue coloration.