ASME_B89-1-10M-2001.pdf

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.AN AMERICAN NA TIONALST ANDARDDIAL INDICATORS(FOR LINEARMEASUREMENTS)ASME B89.1.10M-2001Revision of ASME/ANSI B89.1.10M-1987(R1995)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.Date of Issuance:July 1,2002This Standard will be revised when the Society approves the issuance of anew edition.There will be no addenda issued to this edition.ASME will issue written replies to inquiries concerning interpretation oftechnical aspects of this Standard.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 2002 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.CONTENTSForeword.ivCommittee Roster.vCorrespondence With the B89 Committee.vi1Scope.12References.13Glossary.14Classification by Type.15Classification by Group.16Dial Graduation Values.17Nomenclature.18General Requirements.2Figures1Type A-AD Dial Indicator.22Type B-AD Dial Indicator.33Type C-AD Dial Indicators.44Balanced Dial Showing Specimen Numbering.45Continuous Dial Showing Specimen Numbering.56Dial Showing Specimen Dial Marking and Revolution Counter.57Calibration of a 0.0001-in.Graduation Indicator.6Tables1Nominal Design Dimensions for Type A Indicators.52Determination of Maximum Permissible Error(MPE).6Nonmandatory AppendicesATesting,Operating,and Environmental Considerations.7BElectronic Indicators.9CUncertainty for Indicator Calibrations.12iiiCopyrighted 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.FOREWORDASME Standards Committee B89 on Dimensional Metrology,under procedures approvedby the American National Standards Institute(ANSI),prepares standards that encompassthe inspection and the means of measuring characteristics of such various geometric parametersas diameter,length,flatness,parallelism,concentricity,and squareness.Because dial indicatorsare widely used for the measurement and comparison of some of these features,the chairof the B89.1 Main Committee on Length authorized formation of Working Group B89.1.10to prepare this Standard.Most dial indicators used in the U.S.are built to inch measure specifications,butInternational Organization for Standardization(ISO)standards do not address all the needsof U.S.industry.The inch measure portion of this Standard is strongly influenced byCommercial Standard CS(E)119-45,effective January 1,1945,which was prepared by theAmerican Gage Design Committee(from which the term AGD Standard is derived),anddistributed by the Department of Commerce.It is also based in part on Commercial ItemDescription A-A-2348B,dated July 30,1991,developed by the General Servic