Область применения

1.1 This specification covers requirements and test methods for material (see Appendix X1 ) dimensions and tolerances, hydrostatic burst strength, chemical resistance, and impact resistance of plastic pipe, tubing, and fittings for use in fuel gas mains and services for direct burial and reliner applications. The annexes provide specific requirements and test methods for each of the materials currently approved. If and when additional materials are available, specific annex requirements will be added. The pipe and fittings covered by this specification are intended for use in the distribution of natural gas. Requirements for the qualifying of polyethylene systems for use with liquefied petroleum gas are covered in Annex A1 .

1.1.1 This specification does not cover threaded pipe. Design considerations are discussed in Appendix X2 . In-plant quality control programs are specified in Annex A3 and Annex A4 .

1.2 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.

1.4 The following is an index of the annexes and appendixes in this specification:

Annex Subject Polyethylene (PE) Pipe and Fittings Poly (Vinyl Chloride) (PVC) Pipe and Fittings for Maintenance or Repair In-Plant Quality Control for all materials up to 12 in. In-Plant Quality Control for PE materials between 14 and 24 in.Polyamide (PA) Pipe and Fittings Magnetic-detectable Polyethylene PipeCrosslinked Polyethylene (PEX) PipePeelable PE PipeAppendixesSubject New MaterialsDesign Consideration Gas Pressure Pipe and Fittings Produced from Polyethylene (PE) materials with Minimum Required Strength (MRS) Designation

1.5 The following precautionary caveat pertains only to the test method portion, Section 6, 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.

^REFERENCE: ^ASTMGRP: ASTM Standards: 2.1.1 Terminology:2.1.2Test Methods for:2.1.3Practices for:^REFDOCID: D1898^REFDOCTITLE: Sampling of Plastics 2.1.4Specification for:^REFDOCID: D2740^REFDOCTITLE: Specification for Polyvinyl Chloride (PVC) Plastic Tubing^REFGRP: ANSI Standards:^REFDOCID: B16.40^REFDOCTITLE: Manually Operated Thermoplastic Gas Shutoffs and Valves in Gas Distribution Systems^REFDOCID: B31.8^REFDOCTITLE: Gas Transmission and Distribution Piping Systems^REFGRP: Federal Specifications:^REFDOCID: Fed. Std. No. 123^REFDOCTITLE: Marking for Shipment (Civil Agencies)^REFDOCID: OPS 49 CFR Part 192^REFDOCTITLE: Title 49, Code of Federal Regulations^REFGRP: Military Standards:^REFDOCID: MIL-STD-129^REFDOCTITLE: Marking for Shipment and Storage^REFDOCID: MIL-STD-1235^REFDOCTITLE: (ORD) Single- and Multi-Level Continuous Sampling Procedures and Tables for Inspection by Attributes^REFGRP: ISO Standards:^REFDOCID: ISO 4437^REFDOCTITLE: Buried polyethylene (PE) pipes for the supply of gaseous fuels-Metric series-Specifications^REFDOCID: ISO 11922-1^REFDOCTITLE: Thermoplastics pipes for the conveyance of fluids-Dimensions and tolerances -Part 1: Metric series^REFDOCID: ISO 17454^REFDOCTITLE: Plastics piping systems - multilayer pipe - test method for the adhesion of the different layers using a pulling rig.^REFDOCID: ISO 9080^REFDOCTITLE: Thermoplastics Pipes for the Transport of Fluids-Methods of Extrapolation of Hydrostatic Stress Rupture Data to Determine Long-Term Hydrostatic Strength of Thermoplastic Pipe Materials^REFDOCID: ISO 12162^REFDOCTITLE: Thermoplastic Materials for Pipes and Fittings for Pressure Applications-Classification and Designation-Overall Service (Design) Coefficient^REFGRP: Plastic Pipe Institute^REFDOCID: PPI TR-33^REFDOCTITLE: Generic Butt Fusion Joining for Polyethylene Gas Pipe^REFDOCID: PPI TR3^REFDOCTITLE: Policies and Procedures for Developing Hydrostatic Design Basis (HDB), Pressure Design Basis (PDB)^REFDOCID: PPI TR4^REFDOCTITLE: Hydrostatic Design Bases and Maximum Recommended Hydrostatic Design Stresses for Thermoplastic Piping Materials^REFDOCID: PPI TR-41,^REFDOCTITLE: Generic Saddle Fusion Joining Procedure for Polyethylene Gas Piping^REFDOCID: PPI TN-30/2006^REFDOCTITLE: Requirements for the Use of Rework Materials in Polyethylene Gas Pipe^REFDOCID: PPI TN-7^REFDOCTITLE: Nature of Hydrostatic Stress Rupture Curves^REFGRP: Other Documents:^REFDOCID: National Fire Protection Association: NFPA 58,^REFDOCTITLE: Storage and Handling Liquefied Petroleum Gases ^KEYWORDS: ^INDEX TERMS: ^STATUS: Dn Cn Sn Nn Mn ^APPROVAL: 20071115 ^PAGES: 27 ^COMMITTEE: F17 ^SUBCOMMITTEE: 6000 ^BOS: 08.04 ^ORGINFO: ANSI DOD ^ACTION: STD_REVISION ^MISCPUB: ^PDESIG: D2513 ^PYEAR: 2007B ^CLASS: Specification