If you manufacture, sell or distribute water treatment chemicals in North America, your products are required to comply with NSF/ANSI Standard 60: Drinking Water Treatment Chemicals – Health Effects by most governmental agencies that regulate drinking water supplies. Developed by a team of scientists, industry experts and key industry stakeholders, NSF/ANSI 60 sets health effects criteria for many water treatment chemicals including: Corrosion and scale inhibitors, Coagulants and flocculants, Disinfection and oxidation chemicals, pH adjustment, softening, precipitation and sequestering chemicals, well drilling aids, and All other specialty chemicals used in drinking water treatment.