ASME_B89.1.12m-1990.pdf

Copyright ASME International Provided by IHS under license with ASME Licensee=University of Alberta/5966844001,User=trert,rtyrtyrtyNot for Resale,03/07/2015 23:45:28 MSTNo reproduction or networking permitted without license from IHS-,-,-90 0759h70 0083060 AN AMERICAN NATIONAL STANDARD om Methods for Performance Evaluation of Coordinate Measuring Machines ASME B89.1.12M-1990(REVISION OF ANSVASME B89.1.12M-1985)The American Society of Mechanical Engineers 345 East 47th Street,New York,N.Y.10017-Copyright ASME International Provided by IHS under license with ASME Licensee=University of Alberta/5966844001,User=trert,rtyrtyrtyNot for Resale,03/07/2015 23:45:28 MSTNo reproduction or networking permitted without license from IHS-,-,-:ASME 0759670 0083061 Date of Issuance:June 14,1991 This Standard will be revised when the Society approves the issuance of a new edition.There will be no addenda or written interpretations of the re-quirements of this Standard issued to this Edition.ACME 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 National Standards.The Consensus Committee that approved the code or standard was balanced to assure that Individuals from competent and concerned interests have had an opportunity to participate.The proposed code or standard was made available for public review and comment which 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.ACME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document,and does not undertake to insure anyone utilizing a standard again$t liability for infringement of any applicable Letters Patent,nor assume any such liability.Users of a code or standard are expressly advised that determination of the validity of any such patent rights,and the risk of infringement of such rights,is entirely their own responsibility.Participation by federal agency representative($)or person(s)affiliated with industry is not to be interpreted as goverhment or industry endorsement of this code or standard.ACME accepts responsibilify for only those interpretations issued in accordance with governing ACME procedures and policies which preclude the issuance of interpretations by individual vol-unteers.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.Copyright O 1991 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Resewed Printed in U.S.A.Copyright ASME International Provided by IHS under license with ASME Licensee=University of Alberta/5966844001,User=trert,rtyrtyrtyNot for Resale,03/07/2015 23:45:28 MSTNo reproduction or networking permitted without license from IHS-,-,-ABSTRACT The primary purpose of this Standard is to clarify the performance evaluation of co-ordinate measuring machines(CMMs).A secondary purpose is to facilitate performance comparisons between machines.Definitions,environmental requirements,and test meth-ods are specified.This Standard defines the test methods capable of yielding adequate results for the majority of coordinate measuring machines and is not intended to sup-plement more complete tests that may be required for special applications.o iii Copyright ASME International Provided by IHS under license with ASME Licensee=University of Alberta/5966844001,User=trert,rtyrtyrtyNot for Resale,03/07/2015 23:45:28 MSTNo reproduction or networking permitted without license from IHS-,-,-ASME B89.L.12M 90=0759670 0083063 b FOREWORD(This Foreword is not part o f ASME B89.1.12M-1990.)The ambiguity of coordinate measuring machine(CMM)specifications makes com-parative evaluations of performance characteristics very difficult.Because of this and the increasing use of CMMs,the ASME Standards Committee B89 elected to establish a U.S.A.industry standard applicable to this class of measuring equipment in order to simplifj and clarify performance specifications.At the October 1978 Committee meeting,Working Group B89.1.12 was established to develop the Standard,and Richard B.Hook was appointed Chairman.Coincidentally,Dr.P.Guarnero of Digital Electronic Automation,Torino,Italy,rec-ognized the same need on an international level.In September 1978 he formed a world-wide organization,the Coordinate Measuring Machine Manufacturers Association(CMMA),which had as its chief objective the establishment of an international CMM performance standard.This organization was intended to have three sections:Europe,Japan,and the U.S.A.;Richard B.Hook was appointed Chariman of the U.S.A.section.The organizations differed in the interest of their membership,as well as in geograph-ical flavor.The CMMA members were coordinat