-1-3_R2005_E2000.pdf

ASME A112.1.3-2000AIR GAP FITTINGS FOR USE WITH PLUMBING FIXTURES,APPLIANCES,ANDAPPURTENANCESA N A M E R I C A N N A T I O N A LS T A N D A R DASME A112.1.3-2000AIR GAP FITTINGS FOR USE WITH PLUMBING FIXTURES,APPLIANCES,ANDAPPURTENANCESA N A M E R I C A N N A T I O N A LS T A N D A R DCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.REAFFIRMED 2005FOR CURRENT COMMITTEE PERSONNELPLEASE E-MAIL CSasme.orgAN AMERICAN NA TIONALST ANDARDAIR GAP FITTINGS FOR USE WITH PLUMBING FIXTURES,APPLIANCES,ANDAPPURTENANCESASME A112.1.3-2000Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:September 11,2000This Standard will be revised when the Society approves the issuance ofa new edition.There will be no addenda or written interpretations of therequirements of this Standard issued to this edition.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria forAmerican National Standards.The Standards Committee that approved the code or standardwas balanced to assure that individuals from competent and concerned interests have had anopportunity to participate.The proposed code or standard was made available for public reviewand comment that provides an opportunity for additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted inconnection withany itemsmentioned inthis document,and doesnot undertaketo insureanyoneutilizing a standard against liability for infringement of any applicable letters patent,nor assumeany such liability.Users of a code or standard are expressly advised that determination of thevalidity of any such patent rights,and the risk of infringement of such rights,is entirely theirown responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not tobe interpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued inaccordance with the established ASME procedures and policies,which precludes the issuanceof interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2000 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll Rights ReservedPrinted in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORDIndustry has often incorporated air gaps into commercial fittings to provide back siphonageand backflow protection for the water supply systems to which the fittings are connected.Designers of such fittings took guidance from documents such as ASME A112.1.2,butthere was not a national standard specifically directed toward fittings that included air gaps.In response to requests to modify ASME A112.1.2 to specifically cover fittings with airgaps,the ASME A112 Main Committee determined that the better course was to developa separate standard for this purpose.A Project Team was created,and this Standard is theresult of that work.Suggestions for improvement of this Standard are welcomed.They should be sent to TheAmerican Society of Mechanical Engineers;Attn:Secretary,A112 Main Committee;ThreePark Avenue,New York,NY 10016.This Standard was approved as an American National Standard on July 5,2000.iiiCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Page intentionally blankASME STANDARDS COMMITTEE A112Standardization of Plumbing Materials and Equipment(The following is the roster of the Committee at the time of approval of this Standard.)OFFICERSP.J.Higgins,ChairS.A.Remedios,Vice ChairC.J.Gomez,SecretaryCOMMITTEE PERSONNELR.H.Ackroyd,Rand EngineeringJ.A.Ballanco,JB Engineering&Code ConsultingS.L.Cavanaugh,United AssociationA.Cohen,Arthur Cohen and AssociatesP.V.DeMarco,American Standard,Inc.N