NSF ANSI 358-4:2018 pdf download.Polyethylene of Raised Temperature (PE-RT)Tubing 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, polyethylene of raised temperature (PE-RT) tubing 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.
2 Normative references
The following documents contain provisions that, through reference, constitute provisions of this NSF Standard. At the time this Standard was balloted, the editions listed below were valid. All documents are subject to revision, and parties are encouraged to investigate the possibility of applying the recent editions of the documents indicated below. For undated references. the most recent version shall be referenced. These are normative references for Polyethylene of Raised Temperature (PE-RT) tubing and Fittings for Water-Based Ground-Source (Geothermal) Heat Pump Systems.
ASTM D543 Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents
ASTM D2290 Standard Test Method for Apparent Hoop Tensile Strength of Plastic or Reinforced Plastic Pipe
ASTM 02837 Standard Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastics Pipe Products
ASTM F412. Terminology Relating to Plastic Piping Systems
ASTM F1055. Standard Specification for Electro fusion Type Fittings for Outside Diameter Controlled
Polyethylene and Crossllnked Polyethylene (PEX) Pipe and tubing
ASTM Fl 588 Standard Test Method for Constant Tensile Load Joint Test (CTLJT)
ASTM F 1807. Standard Specification for Metal Insert Fittings Utilizing a Copper Crimp Ring for SDR9 Cross-linked Polyethylene (PEX) Tubing and SDR9 Polyethylene of Raised Temperature (PE-RT) Tubing
ASTM F2080. Standard Specification for Cold-Expansion Fittings with Metal Compression Sleeves for Cross-linked Polyethylene (PEX) Pipe and SDR9 Polyethylene of Raised Temperature (PE-RT) Tubing
ASTM F21 59. Standard Specification for Plastic Insert Fittings Utilizing a Copper Crimp Ring for SDR9 Cross-Linked Polyethylene (PEX) Tubing and SDR9 Polyethylene of Raised Temperature (PE-RT) Tubing
ASTM F2434. Standard Specification for Metal Insert Fittings Utilizing a Copper Crimp Ring for SDR
Cross-linked Polyethylene (PEX) Tubing and SDR9 Cross-linked Polyethylene. Aluminum.Cross-linked Polyethylene (PEX-AL-PEX) Tubing
ASTM F2623. Standard Specification for Polyethylene of Raised Temperature (PE-RT) SDR9 Tubing
CAN/CSA Bi 37.18. Polyethylene of Raised Temperature (PE-RT) Tubing Systems for Pressure Applications
PPI TR-3 Policies and Procedures for Developing Hydrostatic Design Basis (HDB). Hydrostatic Design
Stresses (HDS), Pressure Design Basis (PDB). Strength Design Basis (SDB), and Minimum Required
Strength (MRS) Ratings for Thermoplastic Piping Materials or Pipe
PPI TR-4 PPI Listing of Hydrostatic Design Basis (HDB), Hydrostatic Design Stress (HDS), Strength Design
3 Definitions
Terms used in this Standard that have a specific technical meaning are defined here.
3.1 compound: A mixture of polymers with other ingredients such as fillers, stabilizers, catalysts, processing aids. lubricants, modifiers, pigments. or curing agents.
NOTE — Compounds are considered materials; however, not all materials are considered compounds. 3.2 contamination: The presence of a substance not intentiona’ly incorporated in a product.
3.3 critical dimensions: Dimensions of a product (e.g., tubing and fittings) that directly affect the fit and function, or the capacity of making a sound joint, or both.
3.4 fitting: A piping component used to join, terminate, or provide changes of direction in a piping system.
3.5 ground-source heat pump system: A terminology used to describe a variety of mechanical systems that use the ground, groundwater. or surface water as a heat source or heat sink. Systems can be further described as ground-coupled, groundwater and surface water heat pump systems.NSF ANSI 358-4 pdf download.