The updated 2009 Edition of the NSF / ANSI 50
The NSF/ANSI 50 2009 Equipment for Swimming Pools, Spas, Hot Tubs and Other Recreational Water Facilities is newly updated to follow all standards set forth by the ANSI. This is special due to the manner in which it was created as well as its continued evolution. Like all in NSF developed standards the in NSF 50 is representational of a consensus of voting members with the balance between users, manufacturers and regulatory authorities. This is used to ensure that the products evaluated and certified by the NSF to NSF/ANSI Standard 50 have the greatest except its rating this document is the reason that product manufacturers and specifiers as well as public health officials look for the NSF mark.