World leader in product testing and certification.
NSF is the world leader in standards development, product testing and certification, education and risk-management services. Our mission is to protect and improve human and planet health. Since 1957, we've certified over 100,000 products in the water distribution and treatment chemicals industries.
Since 1985, we've also been the leader in drinking water treatment unit (filtration) product certification, with over 400 companies and 12,000 products listed.
