1、AN AMERICAN NATIONAL STANDARDASME B89.1.7-2009Performance Standard for Steel Measuring TapesIntentionally left blank ASME B89.1.7-2009PerformanceStandard forSteel MeasuringTapesAN AMERICAN NATIONAL STANDARDDate of Issuance: September 18, 2009This Standard will be revised when the Society approves th
2、e issuance of a new edition. There willbe no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Periodically, certain actions of the ASME B89 Committee may be published as Code Cases.Code Cases and interpretations
3、are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org as they are 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 for American NationalStand
4、ards. 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 for public review and comment that provides an opportunity for additi
5、onal 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 in connection with a
6、nyitems mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent
7、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
8、 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 writte
9、n permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2009 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster vCorrespondence With the B89 Committee . vi1 Scope
10、12 Definitions . 13 References . 14 General Requirements . 25 Steel Measuring Tapes 46 Calibration and Maximum Permissible Errors . 4Figure1 Standard Practice for Zero Reference Marking . 3Tables1 Tension Requirements for Steel Measuring Tapes With Flat Rectangular CrossSection 42 MPE for Representa
11、tive Lengths of Curved Cross Section Tapes . 63 MPE for Representative Lengths of Flat Rectangular Cross Section Tapes 6Mandatory AppendixI Reference Standard Traceability . 7Nonmandatory AppendicesA Calibration of a Tape by Comparison to a Master Tape 9B Calibration of a Tape Using a Laser Interfer
12、ometer 12iiiFOREWORDASME Standards Committee B89 on Dimensional Metrology, under procedures approved bythe American National Standards Institute (ANSI), prepares standards that encompass the inspec-tion and the means of measuring characteristics of such various geometric parameters as diameter,lengt
13、h, flatness, parallelism, concentricity, and squareness. Because steel measuring tapes arewidely used for the measurement and comparison of some of these features, the Chair of theB89 Division 1 Length authorized the formation of Project Team B89.1.7 to prepare this Standard.The overall scope of Dim
14、ensional Metrology Measuring Tape Project Team B89.1.7 is to definethe requirements for steel measuring tapes for all units of measures in U.S. Customary units andSI units with respect to graduations, numbering, designations, and accuracy.This Standard provides guidance to users and manufacturers of
15、 steel measuring tapes withrespect to quality standards and preferred measuring units by specifying only the requirementsthat are essential for satisfactory performance. Presently, both SI (metric) and U.S. Customary(inch-based) graduations are in popular use.Nonmandatory Appendices A and B discuss
16、tape calibration uncertainties and provide generalguidance and awareness regarding the determination and application of calibration uncertaintiesrelative to tape calibrations. Nonmandatory Appendix A treats the subject of calibration of atape by comparison to a master tape; Nonmandatory Appendix B d
17、iscusses calibration of a tapeusing a laser interferometer.Drafts of this Standard were proposed and discussed during project team meetings from January1996 through October 2008.This Standard was approved by the American National Standards Institute on June 15, 2009.Suggestions for improvement of th
18、is Standard are welcome. They should be sent to the AmericanSociety of Mechanical Engineers, Secretary, B89 Committee, Three Park Avenue, New York,NY 10016-5990.ivASME B89 COMMITTEEDimensional Metrology(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS
19、COMMITTEE OFFICERSB. Parry, ChairD. Beutel, Vice ChairF. Constantino, SecretarySTANDARDS COMMITTEE PERSONNELD. Beutel, CaterpillarJ. B. Bryan, Bryan and AssociatesT. Carpenter, U.S. Air Force Metrology LabR. L. Thompson, Alternate, U.S. Air Force Metrology LabT. Charlton, Jr., Charlton AssociatesD.
20、J. Christy, Mahr Federal, Inc.F. Constantino, The American Society of Mechanical EngineersG. A. Hetland, International Institute of Geometric Dimensioningand TolerancingSUBCOMMITTEE 1 LENGTHD. Sawyer, Chair, National Institute of Standards and TechnologyD. J. Carlson, The L.S. Starrett Co.D. J. Chri
21、sty, Mahr Federal, Inc.C. J. Fronczek, National Institute of Standards and TechnologyPROJECT TEAM 1.7 MEASURING TAPESC. J. Fronczek, Chair, National Institute of Standards andTechnologyC. Blackburn, National Institute of Standards and TechnologyD. J. Carlson, The L.S. Starrett Co.J. P. DeCarolis, Co
22、nsultantW. T. Estler, National Institute of Standards and TechnologyM. L. Fink, The Boeing Co.C. M. Hayden, The L.S. Starrett Co.vR. J. Hocken, University of North CarolinaR. B. Hook, MetconM. P. Krystek, Physikalisch-Technische BundesanstaltM. Liebers, Professional Instruments Co.E. Morse, Universi
23、ty of North CarolinaB. Parry, The Boeing Co.S. D. Phillips, National Institute of Standards and TechnologyJ. G. Salisbury, Mitutoyo America Corp.D. Sawyer, National Institute of Standards and TechnologyB. R. Taylor, Renishaw PLCM. R. Hamar, Hamar Laser Instruments, Inc.D. T. Harris, Glastonbury Sout
24、her GageK. Kokal, Micro Labratories, Inc.W. A. Watts, Glastonbury Souther GageC. C. Lawhon, ConsultantM. J. Moran, General Services AdministrationR. C. Newton, ConsultantD. Sawyer, National Institute of Standards and TechnologyJ. Schneller, U.S. TapeR. Veale, ConsultantG. L. Wood, Stanley WorksCORRE
25、SPONDENCE WITH THE B89 COMMITTEEGeneral. ASME Standards are developed and maintained with the intent to represent theconsensus of concerned interests. As such, users of this Standard may interact with the Committeeby requesting interpretations, proposing revisions, and attending Committee meetings.
26、Corre-spondence should be addressed to:Secretary, B89 Standards CommitteeThe American Society of Mechanical EngineersThree Park AvenueNew York, NY 10016-5990Proposing Revisions. Revisions are made periodically to the Standard to incorporate changesthat appear necessary or desirable, as demonstrated
27、by the experience gained from the applicationof the Standard. Approved revisions will be published periodically.The Committee welcomes proposals for revisions to this Standard. Such proposals should beas specific as possible, citing the paragraph number(s), the proposed wording, and a detaileddescri
28、ption of the reasons for the proposal, including any pertinent documentation.Proposing a Case. Cases may be issued for the purpose of providing alternative rules whenjustified, to permit early implementation of an approved revision when the need is urgent, or toprovide rules not covered by existing
29、provisions. Cases are effective immediately upon ASMEapproval and shall be posted on the ASME Committee Web page.Requests for Cases shall provide a Statement of Need and Background Information. The requestshould identify the Code, the paragraph, figure or table number(s), and be written as a Questio
30、nand Reply in the same format as existing Cases. Requests for Cases should also indicate theapplicable edition(s) of the Code to which the proposed Case applies.Interpretations. Upon request, the B89 Committee will render an interpretation of any require-ment of the Standard. Interpretations can onl
31、y be rendered in response to a written request sentto the Secretary of the B89 Standards Committee.The request for interpretation should be clear and unambiguous. It is further recommendedthat the inquirer submit his/her request in the following format:Subject: Cite the applicable paragraph number(s
32、) and the topic of the inquiry.Edition: Cite the applicable edition of the Standard for which the interpretation isbeing requested.Question: Phrase the question as a request for an interpretation of a specific requirementsuitable for general understanding and use, not as a request for an approvalof
33、a proprietary design or situation. The inquirer may also include any plansor drawings that are necessary to explain the question; however, they shouldnot contain proprietary names or information.Requests that are not in this format will be rewritten in this format by the Committee priorto being answ
34、ered, which may inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpretation when or if additionalinformation that might affect an interpretation is available. Further, persons aggrieved by aninterpretation may appeal to the cognizant ASME
35、 Committee or Subcommittee. ASME does not“approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.Attending Committee Meetings. The B89 Standards Committee regularly holds meetings, whichare open to the public. Persons wishing to attend any meeting should co
36、ntact the Secretary ofthe B89 Standards Committee.viASME B89.1.7-2009PERFORMANCE STANDARD FOR STEEL MEASURING TAPES1 SCOPEThis Standard specifies the requirements for steel mea-suring tapes, with respect to units (SI and U.S.Customary), graduations, numbering, designations, andaccuracy requirements.
37、2 DEFINITIONSaccuracy: closeness of agreement between a measuredquantity value and a true quantity value of a measurand.Accuracy is a qualitative concept. (VIM 2.13)graduations: marks or lines perpendicular to the edge ofa measuring tape denoting increments of measure.intermediate graduation: a grad
38、uation mark denoting anincrement of measure that falls between the major andthe minor graduations (e.g., inch or centimeter).major graduation: a graduation mark denoting the largestincrement of measure (e.g., feet or meter).maximum permissible errors (MPE): extreme value of mea-surement error, with
39、respect to a known reference quan-tity value, permitted by specifications or regulations fora given measurement, measuring instrument, or measur-ing system. (VIM 4.26)minor graduation: a graduation mark denoting the small-est increment of measure (e.g., fraction of an inch, deci-mal inch, or millime
40、ter).plumb bob: when used with a measuring tape, a weightwith a tapered or flat tip on the bottom that is suspendedfrom the tape.tension: a force that tends to stretch or elongate some-thing, or a measure of such a force.NOTE: The measure of force in the U.S. Customary system is thepound (lbf); the
41、measure of force in the SI system is the newton(N). Traditionally, the tension (a force) has been referred to in unitsof pounds and kilograms. Pound (or pound-force) is proper. In theSI system of units, the kilogram is the unit of mass and the newtonis the unit of force. In this Standard, the tensio
42、n for tapes graduatedin SI units is specified in kilograms, in order to maintain continuityof reference to master tape calibration data. The correspondingforce in newtons is equal to the applied mass in kilogramsmultiplied by the acceleration due to gravity, g. By convention,g p 9.80665 m/s2exactly.
43、 Thus, the force exerted on a tape by a1 kg load is 9.80665 N. For highest accuracy, the local value of gshould be used.validity conditions: the set of values or range of valuesof the relevant influence quantities, e.g., environmentalconditions, under which the performance specificationsare valid.1z
44、ero reference mark: the location from which all graduationand numbering of the measuring tape is dimensioned.3 REFERENCES3.1 Normative ReferencesIf the American National Standard Institute (ANSI)and ISO standards referred to in this document aresuperseded by a revision, the revision shall apply.IEEE
45、/ASTM SI 10-2002, Standard for Use of theInternational System of Units (SI): The Modern MetricSystemPublisher: Institute of Electrical and ElectronicsEngineers, Inc. (IEEE), 445 Hoes Lane, Piscataway,NJ 08854-4141 (www.ieee.org)ISO 1:2002, Geometrical Product Specifications (GPS) Standard Reference
46、Temperature for GeometricalProduct Specification and VerificationISO/IEC Guide 98-3:2008, Uncertainty ofMeasurement Part 3: Guide to the Expression ofUncertainty in Measurement (GUM:1995)Publisher: International Organization forStandardization (ISO), 1 ch. de la Voie-Creuse, Casepostale 56, CH-1211,
47、 Geneve 20, Switzerland/Suisse(www.iso.org)JCGM 200:2008, International Vocabulary ofMetrology Basic and General Concepts andAssociated Terms (VIM)Publisher: Bureau International des Poids et Mesures(BIPM), Pavillon de Breteuil, 92312 Se vres cedex,France (www.bipm.org)3.2 Additional ReferencesAPI M
48、PMS 3.1A 2005, Manual of PetroleumMeasurement Standards Chapter 3 Tank GaugingSection 1A Standard Practice for the ManualGauging of Petroleum and Petroleum ProductsPublisher: American Petroleum Institute (API),1220 L Street, NW, Washington, DC 20005-4070(www.api.org)ASME B89.6.2, Temperature and Hum
49、idity Environmentfor Dimensional MeasurementASME B89.7.3.1-2001, Guidelines for Decision Rules:Considering Measurement Uncertainty inDetermining Conformance to SpecificationsASME B89.7.5-2006, Metrological Traceability ofDimensional Measurements to the SI Unit of Length,Technical ReportASME B89.1.7-2009Publisher: The American Society of MechanicalEngineers (ASME), Three Park Avenue, New York,NY 10016-5990; Order Department: 22 Law Drive,P.O. Box 2300, Fairfield, NJ 07007-2300(www.asme.org)ISO/IEC 17025:2005, General Requirements for theCompetence of Testing and Calibration
