Using Hydrogen Peroxide Test Strips To Test Concentration.
Our test strips only test from 0 to 400 ppm hydrogen peroxide concentration.
A 400 ppm concentration level of hydrogen peroxide is very dilute. You must dilute the 35% Hydrogen Peroxide to a level below 400 ppm for the test strips to indicate. Higher levels will turn the test strips black.
The video below will demonstrate this. 35% is a 350,000 ppm and 400 ppm is a point .0400%. Big difference.
Please note you measure precisely. Results may vary slightly due to the size of the drops added to your water. A drop is a scientific measurement, however I have made large drops and smaller drops.
This method is the best economical way.