Nissan Chemical Industries Residual Chlorine Test Aqua Check 100 Sheets Papers, 3,

---------------------------------------------------------------------- 100 sheets/1 roll Model number: Aqua Check 3 Measurement items: Low concentration free residual chlorine, pH, M alkalinity Coloring agent: Syringaldazine Measurement range: 0, 0.2, 0.4, 0.7, 1.0, 2.0, 3.0, 5.0, 10.0 mg/L, 5.8, 6.5, 7.0, 7.5, 8.0, 8.6 mg/L, 0, 20, 40, 80, 120, 180 mg/L No pretreatment is required, and measurement results can be obtained in a short time (10 to 60 seconds). Both the container and contents can be incinerated and are made of environmentally friendly materials.