Hydrogen Sulfide Test Kit, Model HS-C1

Resulting from the anaerobic decomposition of organic matter, hydrogen sulfide is present in many water supplies. Sewage and industrial wastes are other sources of sulfide pollution. Highly toxic, this compound has a characteristic rotten egg odor, which can be detected long before harmful concentrations are reached. In the HS-C kit, sulfide discolors a detection paper. Results are obtained by comparison of the color to a printed chart.