ASME_B40-200-2008.pdf

Thermometers,Direct Reading and Remote ReadingAN AMERICAN NATIO NAL STANDARDASME B40.200-2008(Revision of ASME B40.200-2001)Copyright ASME International Provided by IHS under license with ASME Licensee=FMC Technologies/5914950002 Not for Resale,05/13/2009 01:10:36 MDTNo reproduction or networking permitted without license from IHS-,-,-ASME B40.200-2008(Revision of ASME B40.200-2001)Thermometers,DirectReading and RemoteReadingAN AMERICAN NATIONAL STANDARDCopyright ASME International Provided by IHS under license with ASME Licensee=FMC Technologies/5914950002 Not for Resale,05/13/2009 01:10:36 MDTNo reproduction or networking permitted without license from IHS-,-,-Date of Issuance:August 4,2008This Standard will be revised when the Society approves the issuance of a new edition.There willbe no addenda or written interpretations of the requirements 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 for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput 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 in connection with anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assume any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights,and the risk of infringement of such rights,isentirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of 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 2008 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by IHS under license with ASME Licensee=FMC Technologies/5914950002 Not for Resale,05/13/2009 01:10:36 MDTNo reproduction or networking permitted without license from IHS-,-,-CONTENTSForeword.ivCorrespondence With the B40 Committee.vCommittee Roster.viASME B40.3Bimetallic Actuated Thermometers.1ASME B40.4Filled System Thermometers.22ASME B40.8Liquid-in-Glass Thermometers.49ASME B40.9Thermowells for Thermometers and Electrical Temperature Sensors.69iiiCopyright ASME International Provided by IHS under license with ASME Licensee=FMC Technologies/5914950002 Not for Resale,05/13/2009 01:10:36 MDTNo reproduction or networking permitted without license from IHS-,-,-FOREWORDASME B40 Standard Committee is composed of a balanced cross section of manufacturers ofpressure and temperature instruments,users,and interested individuals representing governmentagencies,testing laboratories,and other standards-producing bodies.This Standard has been prepared not only to provide performance,configuration,and inter-changeability guidelines but also to inform and update the specifier and user regarding producttypes,application,and use.This Standard is a vehicle by which the Committee can transmit tousers the benefits of their combined knowledge and experience regarding the proper and safeuse of temperature instruments and accessories.Useofthisadvisorystandardisavoluntarymatterandshallinnowayprecludethemanufactureoruseofproductsthatdonotconform.NeitherASMEnortheB40Committeeassumesresponsibil-ity for the effect of observance or nonobservance of recommendations made herein.This Standard is a consolidation and revision of the following standards:(a)B40.3,Bimetallic Actuated Thermometers(b)B40.4,Filled System Thermometers(c)B40.8,Liquid-in-Glass Thermometers(d)B40.9,Thermowells for Thermometers and Elastic Temperature SensorsThisStandardprovidesterminologyanddefinitions,dimensions,safety,constructionandinstal-lation issues,test procedures,and general recommendations.This Standard supersedes SAMA Standard RC-6-10-1963,RC-4-1-1962,and is intended tosupersede Military Specifications MIL-I-17244,MIL-T-19646,and MIL-T-24272.Suggestions for the improvement of this Standard are