ASTM F876-17 Standard Specification for Crosslinked Polyethylene (PEX) Tubing.pdf
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1、Designation: F876 17 An American National StandardStandard Specification forCrosslinked Polyethylene (PEX) Tubing1This standard is issued under the fixed designation F876; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of
2、 last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers crosslinked polyethylene(PEX) tubing that incorporates an optional polymeric inner,middle
3、or outer layer and that is outside diameter controlled,made in nominal SDR9 tubing dimension ratios except wherenoted, and pressure rated for water at three temperatures (seeAppendix X1). Included are requirements and test methods formaterial, workmanship, dimensions, burst pressure, hydrostaticsust
4、ained pressure, excessive temperature and pressure, envi-ronmental stress cracking, stabilizer functionality, bent-tubehydrostatic pressure, oxidative stability in potable chlorinatedwater, and degree of crosslinking. Requirements for tubingmarkings are also given. The components covered by thisspec
5、ification are intended for use in, but not limited to,residential and commercial, hot- and cold-potable water distri-bution systems, reclaimed water, fire protection, municipalwater service lines, radiant heating and cooling systems,hydronic distribution systems, snow and ice melting systems,geother
6、mal ground loops, district heating, turf conditioning,compressed air distribution and building services pipe, pro-vided that the PEX tubing covered herein complies withapplicable code requirements.1.2 The text of this specification references notes, footnotes,and appendixes which provide explanatory
7、 material. Thesenotes and footnotes (excluding those in tables and figures) shallnot be considered as requirements of the specification.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided f
8、or information onlyand are not considered standard.1.4 The following safety hazards caveat pertains only to thetest methods portion, Section 7, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the
9、userof this standard to establish appropriate safety, health, andenvironmental practices and determine the applicability ofregulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in th
10、e Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD792 Test Methods for De
11、nsity and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD1505 Test Method for Density of Plastics by the Density-Gradient TechniqueD1598 Test Method for Time-to-Failure of Plastic PipeUnder Constant Internal PressureD1599 Test Method for Resistance to Short-Time HydraulicPressure o
12、f Plastic Pipe, Tubing, and FittingsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD1898 Practice for Sampling of Plastics (Withdrawn 1998)3D2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2765 Test Methods for Determination of Gel Content andSwell Ratio
13、of Crosslinked Ethylene PlasticsD2837 Test Method for Obtaining Hydrostatic Design Basisfor Thermoplastic Pipe Materials or Pressure Design Basisfor Thermoplastic Pipe ProductsD3895 Test Method for Oxidative-Induction Time of Poly-olefins by Differential Scanning CalorimetryF412 Terminology Relating
14、 to Plastic Piping SystemsF1281 Specification for Crosslinked Polyethylene/Aluminum/Crosslinked Polyethylene (PEX-AL-PEX)Pressure PipeF2023 Test Method for Evaluating the Oxidative Resistanceof Crosslinked Polyethylene (PEX) Pipe, Tubing andSystems to Hot Chlorinated Water1This specification is unde
15、r the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsibility of Subcommittee F17.26 on OlefinBased Pipe.Current edition approved Aug. 1, 2017. Published September 2017. Originallyapproved in 1984. Last previous edition approved 2015 as F876 15a. DOI:10.1520/F087
16、6-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard i
17、s referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized princi
18、ples on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.105 F2657 Test Method for Outdoor Weathering Exposure ofCrosslinked Polyethyl
19、ene (PEX) Tubing2.2 ANSI Standard:B36.10 Standards Dimensions of Steel Pipe (IPS)42.3 Federal Standard:FED-STD-123 Marking for Shipment (Civil Agencies)52.4 Military Standard:MIL-STD-129 Marking for Shipment and Storage52.5 NSF Standard:NSF/ANSI 14 for Plastic Piping Components and RelatedMaterials6
20、2.6 ISO Standards:4ISO 1167 Thermoplastics pipes, fittings and assemblies forthe conveyance of fluids - Determination of the resistanceto internal pressure - Part 1: General methodISO 13760 Plastics pipes for the conveyance of fluids underpressure - Miners rule - Calculation method for cumu-lative d
21、amageISO R 161-1690 Pipes of Plastic Materials for the Transportof Fluids (Outside Diameters and Nominal Pressures) Part1, Metric Series2.7 PPI Standard:7PPI TR-3 Policies and Procedures for Developing Hydro-static Design Basis (HDB), Hydrostatic Design Stresses(HDS), Pressure Design Basis (PDB), St
22、rength DesignBasis (SDB), Minimum Required Strength (MRS)Ratings, and Categorized Required Strength (CRS) forThermoplastic Piping Materials or PipePPI TR-4 PPI Listing of Hydrostatic Design Basis (HDB),Strength Design Basis (SDB), Pressure Design Basis(PDB) and Minimum Required Strength (MRS) Rating
23、sfor Thermoplastic Piping Materials or Pipe3. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology F412, and abbreviations are in accordance with Termi-nology D1600, unless otherwise specified. The abbreviation forcrosslinked polyethylene is PEX. Plastic tubing denotes aparticul
24、ar diameter schedule of plastic pipe in which outsidediameter of the tubing is equal to the nominal size plus18 in.Plastic pipe outside diameter schedule conforms to ANSIB36.10.3.2 Definitions of Terms Specific to This Standard:3.2.1 crosslinked polyethylenea polyethylene material thathas undergone
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