1、Designation:F241816aStandard Specification forPolypropylene(PP)Corrugated Wall Stormwater CollectionChambers1This standard is issued under the fixed designation F2418;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last r
2、evision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers requirements,test methods,materials,and marking for polypropylene(PP),open bottom,buried chambers of c
3、orrugated wall construction used forcollection,detention,and retention of stormwater runoff.Ap-plications include commercial,residential,agricultural,andhighway drainage,including installation under parking lots androadways.1.2 Chambers are produced in arch shapes with dimensionsbased on chamber ris
4、e,chamber span,and wall stiffness.Chambers are manufactured with integral feet that provide basesupport.Chambers may include perforations to enhance waterflow.Chambers must meet test requirements for arch stiffness,flattening,and accelerated weathering.1.3 Analysis and experience have shown that the
5、 successfulperformance of this product depends upon the type and depthof bedding and backfill,and care in installation.This specifi-cation includes requirements for the manufacturer to providechamber installation instructions to the purchaser.1.4 The values stated in inch-pound units are to be regar
6、dedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 This standard does not purport to address water qualityissues or hydraulic performance requirements associated withits use.It is the respon
7、sibility of the user to ensure thatappropriate engineering analysis is performed to evaluate thewater quality issues and hydraulic performance requirementsfor each installation.1.6 The following safety hazards caveat pertains only to thetest method portion,Section 6,of this specification:Thisstandar
8、d 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-tions prior to use.2.Referenced Documents2.1 ASTM Stan
9、dards:2D256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Mate
10、ri-alsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2122 Test Method for Determining Dimensions of Ther-moplastic Pipe and FittingsD2412 Test Method for Determination of External LoadingCharacteristics of Plastic Pipe by Parallel-Plate LoadingD2990 Test Methods for Tensile,Compressive
11、,and FlexuralCreep and Creep-Rupture of PlasticsD4101 Specification for Polypropylene Injection and Extru-sion MaterialsD4329 Practice for Fluorescent Ultraviolet(UV)Lamp Ap-paratus Exposure of PlasticsD6992 Test Method for Accelerated Tensile Creep andCreep-Rupture of Geosynthetic Materials Based o
12、n Time-Temperature Superposition Using the Stepped IsothermalMethodF412 Terminology Relating to Plastic Piping SystemsF2787 Practice for Structural Design of Thermoplastic Cor-rugated Wall Stormwater Collection Chambers1This specification is under the jurisdiction of ASTM Committee F17 on PlasticPip
13、ing Systems and is the direct responsibility of Subcommittee F17.65 on LandDrainage.Current edition approved Aug.1,2016.Published August 2016.Originallyapproved in 2004.Last previous edition approved in 2016 as F2418-16.DOI:10.1520/F2418-16A.2For referenced ASTM standards,visit the ASTM website,www.
14、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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C
15、700,West Conshohocken,PA 19428-2959.United States1 3.Terminology3.1 Definitions:3.1.1 Definitions used in this specification are in accordancewith the definitions in Terminology F412,and abbreviationsare in accordance with Terminology D1600,unless otherwiseindicated.3.1.2 chamberan arch-shaped struc
16、ture manufactured ofthermoplastic with an open-bottom that is supported on feetand may be joined into rows that begin with,and are termi-nated by,end caps(see Fig.1).3.1.3 corrugated walla wall profile consisting of a regularpattern of alternating crests and valleys(see Fig.2).3.1.4 crestthe element of a corrugation located at theexterior surface of the chamber wall,spanning between twoweb elements(see Fig.2).3.1.5 crownthe center section of a chamber typicallylocated at the highest point as the
