This performs semi-quantitative measurement of chlorine (Cl2), hypochlorous acid (HClO), and hypochlorite ion (ClO-) in a sample solution.
The cellulose discoloration is attached to the tip of a polypropylene strip. The test paper is 5mm wide x 95mm long and contains 100 sheets (in an aluminum case). Measurement scale (mg/L=ppm): 0-0.5-1-3-5
Change process: White → Purple
Measurable pH value: pH0 to 14
Quantity: 100 pieces (in aluminum case)
