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Sulfide Ion Solution Tubes
Detection Range 0.5 - 20ppm
10 tubes, 10 tests per box
P/N 211LL

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.