Pyurax Dilution Concentration Test Paper Test Paper HC 100 sheets HC/B 1 roll (100 sheets)

For checking the effective chlorine concentration of high-concentration sodium hypochlorite dilutions It specifically reacts with free available chlorine, but hardly reacts with combined chlorine such as monochloramine and dichloramine. This is a test paper that checks the free available chlorine concentration at five levels: 50, 100, 200, 400, and 600 mg/L. How to use: ①Immerse the test strip in water for 1 second and immediately remove it. Shake off excess water once. ②Hold the test paper horizontally and after 30 seconds, compare the color of the test paper with the color frame on the color chart.