Designation:C428/C428M−05(Reapproved2011)´1StandardSpecificationforAsbestos-CementNonpressureSewerPipe1ThisstandardisissuedunderthefixeddesignationC428/C428M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—UnitsinformationwaseditoriallycorrectedinJanuary2012.1.Scope1.1Thisspecificationcoversrequirementsrelatingtoasbestos-cementnonpressuresewerpipe,joints,andfittingssuitableforusewithgravityflow,intendedforsewerageanddrainageapplicationsfrompointofusetopointoftreatmentordisposal.Itdefinescertainconditionsofmanufacture,classification,characteristics,andacceptancetestsapplicabletotheseproducts.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.NOTE1—RubberringssuitableforusewiththispipearecoveredinSpecificationD1869.NOTE2—Asgeneralguidancetoachievesafeandcleanconstruction-siteconditionswhenworkingwithasbestos-cementpipeproducts,theprocedurescoveredinAWWANo.M-16shallbefollowed.NOTE3—Thisspecificationisissuedforproductstandardizationandpurchasingpurposesonly,anddoesnotincluderequirementsforinstal-lationortherelationshipsbetweenoperatingconditionsandthestrengthcharacteristicsofthevariousclassificationsofpipe.Thepurchaseriscautionedthathemustcorrelateinstallationandoperatingconditionswiththespecifiedcharacteristicsofthepipe.1.3Warning—Breathingofasbestosdustishazardous.Asbestosandasbestosproductspresentdemonstratedhealthrisksforusersandforthosewithwhomtheycomeintocontact.Inadditiontootherprecautions,whenworkingwithasbestos-cementproductsminimizethedustthatresults.Forinforma-tiononthesafeuseofchrysoltileasbestos,referto“SafeUseofChrysotil...
