Through a comprehensive consensus process, NSF has helped develop key standards for various areas in the water industry. NSF's Microbiology Laboratory helps ensure product safety and validates any associated antimicrobial claims.
Bottled Water / Packaged Ice
- Testing for aerobic plate count bacteria, total coliforms, and generic E. coli
- Testing for Legionella, Pseuodomonas, yeast/mold, enteric viruses, and protozoa (i.e. Giardia and Cryptosporidium)
- Testing of product and source water
- Sterility testing for caps and bottles
Drinking Water Treatment Units
- Claim validation for products against NSF/ANSI Standards
- Standard 53 (mechanical filtration)
- Standard 55 (ultraviolet disinfection)
- Standard 42 (bacteriostatic claims)
- International Standards
- EPA Drinking Water Purifier Guide Standard Testing
Biohazard Cabinetry
- Test cabinets against NSF Standard 49
- Test for personnel, product, and cross contamination
Pool and Spa Testing
- Standard 50 - bacterial and protozoal efficacy claims
- Biofilms - evaluate effect of antimicrobial treatments on their formation and viability
Australian and British Standard for Products for Use in Contact With Drinking Water
Engineering and Research Services (ERS), Protocol Development, and Certification
- Residential appliances
- P154 - residential clothes dryers - sanitizing cycle efficacy
- P172 - residential clothes washers - sanitizing cycle efficacy
- P351 - residential clothes washer - allergen removal claims
- Glove bioburden
- Rainwater catchment
- Water suitability
