NSF/ANSI 358-2-2012

Geothermal technology has been used in North America for decades and is experiencing tremendous interest. In 2009, the NSF Joint Committee on Plastics and RV Plumbing Components proposed to develop this Standard after a need was identified in the industry. Plastic piping system components are used in the construction of earth energy systems yet there is no North American standard addressing all relevant aspects of earth energy systems. It is the intent of this Standard to assist in a more consistent approval and mainstream code adoption of the geothermal piping systems technology.

This standard will be separated into four separate documents based on material types. NSF/ANSI 358-2 addresses products in polypropylene systems.

This Standard was developed by the NSF Joint Committee on Plastics using the consensus process described by the American National Standards Institute.