Hydrion季铵盐试纸
检测范围：0-400ppm 0-100-200-300-400ppm (parts per million)
包装：1卷每盒，每卷约5米
测试：100次以上
Dip the strip into the sanitizing solution for 10 seconds, then instantly compare the resulting color with the enclosed color chart which matches concentrations of 0-100-200-300-400ppm.
Test solution should be between 65 and 75 degrees Fahrenheit.
