1、Designation:F298712Standard Specification forCorrugated Polyethylene Pipe and Fittings for Mine HeapLeach Aeration Applications1This standard is issued under the fixed designation F2987;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision
2、,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers requirements and test methodsfor materials,workmanship,dimensions,perforations,pipes
3、tiffness,elongation,joint separation resistance,quality ofextruded polyethylene,brittleness,testing,and marking ofcorrugated polyethylene(PE)pipe and fittings for mine heapleach pile aeration.It covers with nominal sizes 100 mm(4inch),150 mm(6 inch),200 mm(8 inch),250 mm(10 inch)300 mm(12 inch),375
4、mm(15 inch),and 450 mm(18 inch)diameter.1.2 This specification covers double wall,annular extrudedcorrugated polyethylene pipe as depicted in Fig.1.1.3 The values given in parentheses are provided for infor-mation purposes only.1.4 The following precautionary caveat pertains only to thetest method p
5、ortion,Section 9,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 userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tion
6、s prior to use.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2412 Test Method for Determination of External LoadingCharacteristics of Plastic Pipe by Parallel-Plate LoadingD2444 Test Method fo
7、r Determination of the Impact Resis-tance of Thermoplastic Pipe and Fittings by Means of aTup(Falling Weight)D3350 Specification for Polyethylene Plastics Pipe and Fit-tings MaterialsD3895 Test Method for Oxidative-Induction Time of Poly-olefins by Differential Scanning CalorimetryF412 Terminology R
8、elating to Plastic Piping SystemsF2136 Test Method for Notched,Constant Ligament-Stress(NCLS)Test to Determine Slow-Crack-Growth Resis-tance of HDPE Resins or HDPE Corrugated Pipe2.2 Federal Standards:3Fed.Std.No.123 Marking for Shipment(Civil Agencies)Federal Emergency ManagementAgency(FEMA)Technic
9、alManual:Plastic Pipe Used in Embankment Dams:BestPractices for Design,Construction,Problem Identificationand Evaluation,Inspection,Maintenance,Renovation,andRepair2.3 Military Standard:3MIL-STD-129 Marking for Shipment and Storage3.Terminology3.1 DefinitionsDefinitions used in this specification ar
10、e inaccordance with Terminology F412 and abbreviations are inaccordance with Terminology D1600,unless otherwise speci-fied.The abbreviation for polyethylene is PE.3.2 Definitions of Terms Specific to This Standard:3.2.1 splitany break or crack that extends through thewall.3.2.2 creasea deformation t
11、hat cannot be removed like adent:generally associated with wall buckling.3.2.3 leachingminerals are removed(leached)from oresthat have been mined,crushed,and placed on impervious padsfor removal(by chemical leaching)by percolation of thesolution through the ore,and collection of that solution at the
12、bottom of the heap leach pile.4.Ordering Information4.1 Orders for product made to this specification shallinclude the following information to adequately describe thedesired product:1This test method is under the jurisdiction of ASTM Committee F17 on PlasticPiping Systems and is the direct responsi
13、bility of Subcommittee F17.26 on OlefinBased Pipe.Current edition approved Nov.1,2012.Published February 2013.DOI:10.1520/F2987-12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information
14、,refer to the standards Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4
15、.1.1 This ASTM designation and year of issue,4.1.2 Perforations:4.1.2.1 With perforations,4.1.2.2 Without perforations,4.1.3 Diameters,4.1.4 Total meters of each pipe diameter involved,4.1.5 Pipe laying length,4.1.6 Fitting type(s):4.1.6.1 Size and type of fittings,including mainline andbranch diame
16、ters,and4.1.6.2 Number of fittings per diameter.5.Significance and Use5.1 Corrugated PE pipe and fittings in this standard areintended for deep underground applications under harsh chemi-cal exposure from a corrosive effluent where they serve as heapleach pile aeration pipe under a mine heap or dump leachingprocess.Their major use is to aerate the pile to improve thechemical extraction of the desired metal by the leachate.Heapleaching is used to extract copper,gold,lead,nickel,silver,uranium,or
