Model HS-WR -Hydrogen Sulfide Test Kit, Color Disc

Hydrogen Sulfide: 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. Sulfide reacts with colorimetric reagents to form a blue color, which is measured with a color disc.