IEC_61223-2-7-1999.pdf

INTERNATIONALSTANDARDIEC61223-2-7First edition1999-09Evaluation and routine testing inmedical imaging departments Part 2-7:Constancy tests Equipment for intra-oral dental radiographyexcluding dental panoramic equipmentEssais dvaluation et de routine dansles services dimagerie mdicale Partie 2-7:Essais de constance Appareils de radiographie dentaire intra-orale lexclusiondes appareils dentaires panoramiquesReference numberIEC 61223-2-7:1999(E)Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-NumberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.Consolidated publicationsConsolidated versions of some IEC publications including amendments areavailable.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to thebase publication,the base publication incorporating amendment 1 and the basepublication incorporating amendments 1 and 2.Validity of this publicationThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to the date of the reconfirmation of the publication is availablein the IEC catalogue.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared this publication,as well as the listof publications issued,is to be found at the following IEC sources:IEC web site*Catalogue of IEC publicationsPublished yearly with regular updates(On-line catalogue)*IEC BulletinAvailable both at the IEC web site*and as a printed periodicalTerminology,graphical and letter symbolsFor general terminology,readers are referred to IEC 60050:InternationalElectrotechnical Vocabulary(IEV).For graphical symbols,and letter symbols and signs approved by the IEC forgeneral use,readers are referred to publications IEC 60027:Letter symbols to beused in electrical technology,IEC 60417:Graphical symbols for use on equipment.Index,survey and compilation of the single sheets and IEC 60617:Graphical symbolsfor diagrams.*See web site address on title page.Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-INTERNATIONALSTANDARDIEC61223-2-7First edition1999-09Evaluation and routine testing inmedical imaging departments Part 2-7:Constancy tests Equipment for intra-oral dental radiographyexcluding dental panoramic equipmentEssais dvaluation et de routine dansles services dimagerie mdicale Partie 2-7:Essais de constance Appareils de radiographie dentaire intra-orale lexclusiondes appareils dentaires panoramiquesPRICE CODE IEC 1999 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300e-mail:inmailiec.ch IEC web site http:/www.iec.chLFor price,see current catalogue Commission Electrotechnique Internationale International Electrotechnical CommissionCopyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-2 61223-2-7 IEC:1999(E)CONTENTSPageFOREWORD.3Clause1Scope and object.51.1Scope.51.2Object.52Normative references.63Terminology.73.1Degree of requirements.73.2Use of terms.73.3Definitions.74General aspects of CONSTANCY TESTS.84.1General conditions affecting test procedures.84.2Establishment of BASELINE VALUES.94.3Frequency of CONSTANCY TESTS.94.4Identification of equipment,instrumentation and test conditions.94.5Measured functional parameters.105Performance tests.105.1Test equipment.105.2Test procedures.115.3Data evaluation.115.4Criteria to be applied.125.5Action to be taken.126Statement of compliance.13Annex A(normative)Terminology Index of defined terms.15Annex B(informative)Example of a form for the standardized test report.17Annex C(informative)Guidance on action to be taken.19Annex D(informative)Possible faults and corrective actions.20Figure 1 Measuring arrangement for intra-oral dental RADIOGRAPHY.14Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-61223-2-7 IEC:1999(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_EVALUATION AND ROUTINE TESTING IN MEDICAL IMAGING DEPARTMENTS Part 2-7:Constancy tests Equipment for intra-oral dental radiographyexcluding dental panoramic equipmentFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the IEC is to promotei