ASTM F1281-02e2 - 10.4.2002
 
1. Scope

1.1 This specification covers a coextruded crosslinked polyethylene composite pressure pipe with a welded aluminum tube reinforcement between the inner and outer layers. The inner and outer crosslinked polyethylene layers are bonded to the aluminum tube by a melt adhesive. Included is a system of nomenclature for the crosslinked polyethylene-aluminum-crosslinked polyethylene (PEX-AL-PEX) pipes, the requirements and test methods for materials, the dimensions of the component layers and finished pipe, adhesion tests, and the burst and sustained pressure performance. Also given are the requirements and methods of marking.

1.2 This specification covers only composite pipes incorporating a welded aluminum tube. Pipes consisting of metallic layers not welded together are outside the scope of this specification.

1.3 Specifications for connectors for use with pipe meeting the requirements of this specification are given in Annex A1.

1.4 This specification excludes polyethylene-aluminum-polyethylene pipes (see Specification F 1282).

1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.6 The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

Uniform Freight Classification Available from the Uniform Classification Committee, Suite 1106, 222 South Riverside Plaza, Chicago, IL 60606.

F1974-23

Standard Specification for Metal Insert Fittings for Polyethylene/Aluminum/Polyethylene and Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene Composite Pressure Pipe

F1282-23a

Standard Specification for Polyethylene/Aluminum/Polyethylene (PE-AL-PE) Composite Pressure Pipe (Includes all amendments and changes 7/18/2023).

D618-21

Standard Practice for Conditioning Plastics for Testing

D883-24

Standard Terminology Relating to Plastics

F412-23

Standard Terminology Relating to Plastic Piping Systems

D1599-18

Standard Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings

D1600-18

Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)

D1898-68(1989)

Standard Practice for Sampling of Plastics (Withdrawn 1998)

D2122-22

Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings

Fed. Std. No. 123

Marking for Shipments (Civil Agencies) Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, Attn: NPODS.

MIL-STD-129

Marking for Shipment and Storage

D2765-16(2024)

Standard Test Methods for Determination of Gel Content and Swell Ratio of Crosslinked Ethylene Plastics

D3350-21

Standard Specification for Polyethylene Plastics Pipe and Fittings Materials

E8-04

Standard Test Methods for Tension Testing of Metallic Materials

National Motor Freight Classification Available from the National Motor Freight Traffic Association, Inc., National Motor Freight Classification, American Tracking Associations, Inc., Traffic Dept., 1616 P St., NW, Washington, DC 20036.

Standard No. 14

Plastics Piping System Components and Related Materials

D1598-23

Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure