If you manufacture, sell or distribute water treatment or distribution products in North America, your products are required to comply with NSF/ANSI Standard 61: Drinking Water System Components – 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 61 sets health effects criteria for many water system components including: Protective barrier materials (cements, paints, coatings); Joining and sealing materials (gaskets, adhesives, lubricants); Mechanical devices (water meters, valves, filters); Pipes and related products (pipe, hose, fittings); Plumbing devices (faucets, drinking fountains); Process media (filter media, ion exchange resins); Non-metallic potable water materials.