1. NSF International Drinking Water Product Standards

2. NSF Drinking Water Product Standards
On-site Treatment Products
Point-of-Use Treatment Units
Point-of-Entry Treatment Units
Public Water Supply Treatment
Treatment Chemicals
Treatment Equipment
Water Distribution Equipment
Pipes and Fittings
Valves and Meters
Faucets

3. On-site Drinking Water Treatment Unit Standards
NSF/ANSI Standard 42: Aesthetic Claims.
NSF/ANSI Standard 53: Health Claims.
NSF/ANSI Standard 58: Reverse Osmosis Systems.
NSF/ANSI Standard 44: Residential Ion Exchange Water Softeners.
NSF/ANSI Standard 62: Distillation Systems.
NSF/ANSI Standard 55: Ultraviolet Disinfection Systems.
NSF/ANSI Standard 177: Shower Filters.

4. Technologies NSF Certifies
Carbon
Sediment
Resins
Reverse Osmosis
Ultraviolet
Distillation
All other treatment medias

5. System Types NSF Certifies
Point-of-Use and Point-of-Entry.
Counter-Top Manual Fill.
Counter-Top Connected to Sink Faucet.
Faucet Mount.
Personal Water Bottle.
Plumbed-In Under Counter.
Plumbed-In Under Counter to Separate Tap.
Pour Through Pitcher.

6. Content of NSF Drinking Water Treatment Unit Standards
Mandatory requirements for:
Material safety; no contaminants produced by the product.
Structural integrity; water tightness.
Product literature; accurate consumer information.
Options, as selected by the Manufacturer:
Demonstration of performance for individual contaminant reduction claims.

7. Material Evaluation
In depth review of all materials in contact with drinking water by expert toxicologists.
Intent: No contaminants being added to the water by the treatment device.
Two-part Evaluation:
Formulation review to ensure material ingredients are safe (NSF has 45,000 material formulations already on file) .
Extraction testing.
Aggressive test water with long exposure for optimum consumer protection.

8. Structural Testing
Intent: product will not structurally fail when subjected to use conditions.
Testing represents conservative, adverse conditions (high pressure) and life of use (repeat cycling) for optimum consumer protection.
Determined based upon product type.
Three general tests.
Burst pressure test (very high pressure, very short period of time).
Hydrostatic pressure test (high pressure, longer period of time).
Cyclic test (repeat cycling at pressures much higher than most homes).

9. Product Literature and Labeling
Installation, operation and maintenance instructions for consumers.
Prepared in easy to understand terms.
Data plate on the product to show key information.
Performance data sheet so consumer is fully informed on the products performance.

10. Testing for Contaminant Reduction Claims
Manufacturer selects from many options (chemical, microbiological, particulate).
Tested with actual contaminated water.
Pattern of water flow similar
to home use.
Two systems tested (duplicate)
and both must pass.

11. Testing for Contaminant Reduction Claims
Conservative Test for optimum consumer protection:
Tested at accelerated flows.
Tested at higher pressure.
Tested with water characteristics that are representative of extreme performance conditions.
Tested beyond capacity claims (minimum 120%, up to 200%).
Tested at very high contaminant challenge levels.
Manufacturer can claim only one capacity, whichever contaminant performs the worst.

12. Public Water Supply Treatment Standards
Water Treatment Chemicals
NSF/ANSI Standard 60 –
Drinking Water Treatment Chemicals
Water Treatment Equipment
NSF/ANSI Standard 61 –
Drinking Water System Components

13. NSF/ANSI Standard 60
Drinking Water Treatment Chemicals Health Effects.
Developed to ensure treatment chemicals do not add unsafe levels of chemicals or contaminants to drinking water.
Sets criteria to evaluate:
Chemical is safe at its maximum use level.
Contaminants associated with the chemical are below levels that might cause adverse human health effects.

14. NSF/ANSI Standard 60 Certification Requirements:
Full formulation disclosure
Toxicology Review
Dosing 10 x maximum use level in water
Analyze for residual ingredients and contaminants
Evaluate against allowable concentrations
Inspect manufacturing facilities annually
Verify formulations
Collect samples for testing

15. NSF/ANSI 61 Drinking Water System Components – Health Effects
Covers health effects of materials in treatment and distribution equipment.
Covers all products with drinking water contact from source water extraction and treatment to plumbing fittings.
Does not evaluate product performance.
Evaluates the amount of any contaminant added from a product to drinking water against health based criteria.

16. NSF/ANSI 61 Drinking Water System Components – Health Effects
Certification Requirements:
Full formulation disclosure
Toxicology Review
Expose products to various formulated waters
Analyze exposure water for contaminants
Evaluate against allowable concentrations
Inspect manufacturing facilities annually
Verify formulations
Collect samples for testing

17. Water Distribution Products
Plumbing and Water Distribution
NSF/ANSI Standard 14 –
Plastics Piping System Components
NSF/ANSI Standard 61 –
Drinking Water System Components

18. NSF/ANSI Standard 14
Establishes minimum physical, performance and health effects requirements for plastic piping system components and related materials.
Piping and Tubing
Fittings and Valves
Appurtenances
Thermoset Materials
Thermoplastic Materials
Joining Materials
Plastics Ingredients

19. Listings of NSF Certified Products
Listings of NSF Certified Products are at:
Standards Number of Certified Products
Drinking Water Treatment Units
Drinking Water Treatment Chemicals 35700
Drinking Water System Components 24400
Plastic Piping System Components 35200

20. For More Information USA Dave Purkiss Phone: +1-734-827-6855
INDIA
Vaneet Gupta
Phone: