Useful for many applications
E.g. In chemical laboratories, organic solvents containing peroxide can be checked as they could explode upon heating
Soak the test pad in the solvent sample then allow to dry
Add a drop of distilled/demineralised water and if the pad remains white then there is no peroxide present.
Testing for residual peroxide where high strength disinfectants are utilised for cleaning such as the dairy industry, drinking water, pools and hot tubs