NSF/ANSI 358-3:2021
Current
The latest, up-to-date edition.
Cross-linked polyethylene (PEX) pipe and fittings for water-based ground-source (geothermal) heat pump systems
Hardcopy , PDF
English
27-06-2021
The physical and performance requirements in this standard apply to plastic piping system components as well as nonplastic 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.
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