Customer Service:
Mon - Fri: 8:30 am - 6 pm EST
Back
Standards PDF Cover Page

 Most recent

NSF/ANSI 358-3-2021

Cross-linked Polyethylene (PEX) Pipe and Fittings for Water-Based Ground-Source (Geothermal) Heat Pump Systems

The physical and performance requirements in this standard apply to plastic piping system components as well as non-plastic components of the ground loop heat exchanger including but not limited to cross-linked polyethylene (PEX) pipes and fittings used in water-based ground-source heat pump systems. This standard does not cover refrigerant based ground loop heat exchangers such as direct expansion (DX) systems. This Standard does not cover hydronic heating or cooling systems within buildings.

Available for Subscriptions Available in Packages

Content Provider
NSF International [nsf]

Document History
Revises:
  • NSF/ANSI 358-3-2016
Included in Packages
This standard is also available in these packages:
Amendments & Corrections
We have no amendments or corrections for this standard.
ANSI Logo

As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

Useful Links
CUSTOMER SERVICE
NEW YORK OFFICE
ANSI HEADQUARTERS
2024 © American National Standards Institute (ANSI) All Rights Reserved.