Chemical Test Kits: HI 3855 Cyanide, 0.00-0.30 mg/L, Checker Disc analytical method

• Color comparison wheel
• High accuracy
• Simple to use

Cyanide is a pollutant that originates mostly from metallurgical, galvanic another industrial processes, such as gold and silver extraction. Because it is poisonous to the human nervous system, it is imperative to monitor and control cyanide levels in potable water. When in contact with acids, cyanide frees poisonous gases. The Environmental Protection Agency (EPA) has established that the maximum level of cyanide in water is not to exceed 0.2 mg/L (ppm).