BuriedPlasticPipeTechnologySTP1093GeorgeS.BuczalaandMichaelJ.Cassady,editorsRASTM1916RaceStreetPhiladelphia,PA19103LibraryofCongressCataloging-in-PublicationDataBuriedplasticpipetechnoloQy/GeorgeS.Bucza]aandMichaeld.Cassad~,editors.(STP;1093)PapersfromasymposiumheldinDallas,Tex.,Sept,10-13,1990andsponsoredbytheASTMCommitteeF-17onPlasticSystemsandSubcommitteeD20.23onReinforcedPlasticPipingSystemsandChemicalEquipment."ASTMpublicationcodenumber(PCN)04-010930-58.~'Includesbibliographicalreferencesandindex,ISBN0-8031-1395-11.Pipe,Plastic--Underground--Congresses.I.Bucza]a,GeorgeS..1932-II.Cessady,MichaelJ..1942-III.ASTMCommitteeF-17onPlasticPipingSystems.IV.ASTMCommitteeF-17onP]asticPipingSystems,SubcommitteeD20.23onReinforcedPlasticPipingSystemsendChemica~Equipment.V.Series:ASTMspecialtechnicalpublication;1093.TJ930.B8731990668.4'9--dc2090-14395CIPCopyright�91990bytheAmericanSocietyforTestingandMaterials.Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofthepublisher.NOTETheSocietyisnotresponsible,asabody,forthestatementsandopinionsadvancedinthispublication.PeerReviewPolicyEachpaperpublishedinthisvolumewasevaluatedbythreepeerreviewers.Theauthorsaddressedallofthereviewers'commentstothesatisfactionofboththetechnicaleditor(s)andtheASTMCommitteeonPublications.Thequalityofthepapersinthispublicationreflectsnotonlytheobviouseffortsoftheauthorsandthetechnicaleditor(s),butalsotheworkofthesepeerreviewers.TheASTMCommitteeonPublicationsacknowledgeswithappreciationtheirdedicationandcontribu-tionoftimeandeffortonbehalfofASTM.PrintedinBaJtimoreOctober1990ContentsOverviewTESTINGANDSTANDARDSRetentionofPipeStiffnessforPolyvinylChloride(PVC)PipeSamplesExposedtoVariousEnvironmentsandConstantStrain--gONALDR.BISHOPTheDurabilityofPolyethylenePiping--STANLEYA.MRUKFiberglassPipeProductStandards--AnUpdateonPerformance--LEEE.PEARSONATVA1...
