NSF Certification - Drinking Water Treatment

Anything that will not leach harmful substances into the water e.g. PET.

The NSF and ANSI have a comprehensive data base/listing regarding what materials currently comply with NSF/ANSI Standard No. 61. Also, the government agency having jurisdiction and oversight over potable water supply in your state or country will most likely have said data base/listing.

As far as I can remember, the part or equipment in question should be stamped or embossed with "NSF/ANSI 61" on it surface if it complies with the standard. Usually, the part or equipment is shipped from the manufacturer with a Certificate of Compliance if it meets or exceeds the requirements of the standard.

When in question if the material or part is in compliance, contact the manufacturer for written verification or a copy of the Certificate.

Also when in doubt, always try to ascertain if the material a forgery or the Certification of Compliance by the manufacturer is fraudulent. This is happening at an alarming rate lately, especially from unscrupulous manufacturers located in Far East countries, Africa and South America.

If the product has NSF/ANSI 61 approval marked on the label it will be certified but must meet any other criteria such as microbial limitations. Check with NSF.org and they will tell you if it is approved. You can get a complete list from them. You also may want to check out:

http://www.wrcnsf.com/american_materials.htm

When I was in business all our products had to meet NSF criteria for all public water supplies. We sometimes could get special approval for non NSF products but we did a lot of paper work.

GA Kevin!

I'm sure because of you're history in the manufacturing end of things you know more about the certification process then most of us, including me!

Have a great sunny day!

Did you manufacture ro see drinking water treating equipment, like pump, pipeline, valve, that had vitreous enamel coating on the inside face? Thank you!

No. Our dealing with NSF were with chemical addition to water supplies and not the hardware. We developed a peroxide based compound called Wellrific for cleaning wells.

My only dealing with vitreous enamel coatings (glass coatings) were with steel tanks that we purchased from other suppliers. The biggest problem was that if the tank was dropped or damaged by installation (tightening of fittings) the enamel could crack and water could then corrode the steel. "NSF.org" are the people to talk to about your needs and they can get your product approved for a fee or provide you with list of NSF 61 products (usually free for the list).

Thank you!