1、Designation:C122713Standard Specification forPrecast Concrete Septic Tanks1This standard is issued under the fixed designation C1227;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses in
2、dicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers design requirements,manufac-turing practices,and performance requirements for monolithicor sectional precast concrete septic tanks.1.2 Th
3、e values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated wi
4、th its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A82/A82M Specification for Steel Wire,Plain,for ConcreteReinforcemen
5、t(Withdrawn 2013)3A185/A185M SpecificationforSteelWeldedWireReinforcement,Plain,for Concrete(Withdrawn 2013)3A496/A496M Specification for Steel Wire,Deformed,forConcrete Reinforcement(Withdrawn 2013)3A497/A497M SpecificationforSteelWeldedWireReinforcement,Deformed,for Concrete(Withdrawn2013)3A615/A6
6、15M Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementA706/A706M Specification for Low-Alloy Steel Deformedand Plain Bars for Concrete ReinforcementA996/A996M Specification for Rail-Steel and Axle-SteelDeformed Bars for Concrete ReinforcementC33 Specification for Concr
7、ete AggregatesC39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC94/C94M Specification for Ready-Mixed ConcreteC125 Terminology Relating to Concrete and Concrete Ag-gregatesC150 Specification for Portland CementC231 Test Method for Air Content of Freshly Mixed Con-crete
8、 by the Pressure MethodC260 Specification for Air-Entraining Admixtures for Con-creteC330 Specification for Lightweight Aggregates for Struc-tural ConcreteC494/C494M Specification for Chemical Admixtures forConcreteC595 Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash a
9、nd Raw or CalcinedNatural Pozzolan for Use in ConcreteC685/C685M Specification for Concrete Made by Volumet-ric Batching and Continuous MixingC890 Practice for Minimum Structural Design Loading forMonolithic or Sectional Precast Concrete Water andWastewater StructuresC990 Specification for Joints fo
10、r Concrete Pipe,Manholes,and Precast Box Sections Using Preformed Flexible JointSealantsC1116/C1116M Specification for Fiber-Reinforced ConcreteC1644 Specification for Resilient Connectors Between Re-inforced Concrete On-Site Wastewater Tanks and Pipes2.2 ACI Standard:4ACI 318 Building Code Requirem
11、ents for Reinforced Con-crete2.3 NSF/ANSI Standard:5NSF/ANSI 462005 Evaluation of Components and Devicesused in Wastewater Treatment Systems3.Terminology3.1 For definitions of terms relating to concrete,see Termi-nology C125.3.2 Definitions of Terms Specific to This Standard:1This specification is u
12、nder the jurisdiction ofASTM Committee C27 on PrecastConcrete Products and is the direct responsibility of Subcommittee C27.30 on Waterand Wastewater Containers.Current edition approved Dec.15,2013.Published January 2014.Originallyapproved in 1993.Last previous edition approved in 2012 as C1227 12.D
13、OI:10.1520/C1227-13.2For 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
14、standard is referenced onwww.astm.org.4Available from American Concrete Institute(ACI),P.O.Box 9094,FarmingtonHills,MI 48333-9094,http:/www.aci-int.org.5Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM Internationa
15、l,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.1 access opening,nhole in the top slab used to gainaccess to the inside of the tank for the purpose of cleaning andremoving sludge without a person actually having to enter thetank.3.2.2 air scum volume,nnumber of
16、 cubic inches(centi-metres)in the space between the liquid surface and theunderside of the top slab.3.2.3 baffle,ndevice placed in a tank to dissipate energy,direct flow,retain solids,and/or draw liquid off at a specificdepth.3.2.4 baffle,inlet,ntee or wall segment at or near the inletpipe of a tank designed to direct flow below the liquid surface.3.2.5 baffle,outlet,ntee or wall segment at or near theoutlet pipe of a tank designed to collect flow from the liquideffluent layer.3.2.6 cement,npowd
