Fisherbrand™ Potassium Iodide Starch Test

Test for the presence of free iodine, chlorine and peroxides in solution.

Quickly and easily test for the presence of free iodine, chlorine and peroxides in solution.

• The Potassium Iodide Starch test paper detects available chlorine, iodine and peroxides in the solution
• Chlorine and Peroxides react immediately, while Iodine requires approximately 60 seconds
• Initial reactions show a slight blue color, while higher concentrations turn the strip from dark blue to purple
• The upper limits for chlorine and peroxides are between 400 to 450ppm, and the upper limits for Iodine are at 50 to 100ppm