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ASME_B89-1-13-2001.pdf
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ASME_B89 13 2001
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 ANDARDMICROMETERSASME B89.1.13-2001Copyrighted 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 27,2002This Standard will be revised when the Society approves the issuance of anew edition.There will be no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations oftechnical aspects of this Standard.Interpretations are published on the ASMEWeb site under the Committee Pages at http:/www.asme.org/codes/as theyare issued.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.vii1Scope.12Definitions.13References.14Micrometers,General.25Outside Micrometers.26Inside Micrometers.37Depth Micrometers.38Specialty Micrometers.49Micrometers With Digital Readout.4Figures1Typical Outside Micrometer.22Typical Inside Micrometer.53Typical Depth Micrometer.54Mechanical Digital Micrometer.55Electronic Digital Micrometer.5Tables1Maximum Permissible Errors for Outside Micrometers(Inch System).32Maximum Permissible Errors for Outside Micrometers(Metric System).43Inch-Measure Setting Standards.44Metric-Measure Setting Standards.5Nonmandatory AppendicesAGood Operating Procedure.7BEnvironmental Considerations.9CTest Methods.10DUncertainty for Micrometer 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,has the responsibility of preparing standardsthat encompass the inspection and the means of measuring characteristics of variousgeometrical parameters,such as diameter,length,flatness,parallelism,concentricity,taper,and squareness.Since micrometers are widely used for the measurement and comparisonof some of these features,the B89 Consensus Committee authorized formation of ProjectTeam B89.1.13 to prepare this Standard.As most of the micrometers used in the United States are built to inch-system specifications,the International Organization for Standardization(ISO)standards do not address all theneeds of American industry.The inch-system portion of this Standard is based in part onFederal Specification GGG-C-105C,published by the General Services Administration(GSA),as well as manufacturers current practices and technologies.The metric-system portion ofthis Standard is consistent with ISO efforts in support of internationa

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