Free Residual Chlorine Solution Tubes
Detection Range 0.1 - 10 mg/l
10 tubes, 10 tests per box
P/N 222

Dissolved substances in a solution can be measured by immersing the Gastec Dissolved Substance/Solution Detector Tube (with both ends broken) into a solution. When the detector tube is immersed vertically, with the arrow pointing upward, the solution will rise up through the tube. An indication is then noted on the tube