NSF 358-2:2017
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
POLYPROPYLENE PIPE AND FITTINGS FOR WATER-BASED GROUND-SOURCE 'GEOTHERMAL' HEAT PUMP SYSTEMS
Hardcopy , PDF
12-21-2022
English
12-18-2017
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 pipes and fittings used in water-based ground-source heat pump systems This Standard is intended for ground loop heat exchangers with a maximum temperature and pressure of 140 °F (60°C) at 100 psi.
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