IEC IEC61689 Edition4.02022-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Ultrasonics-Physiotherapysystems-Fieldspecificationsand methods ofmeasurementinthefrequencyrange0,5MHzto5MHz Ultrasons-Systemesdephysiotherapie-Specificationsdeschamps etmethodesdemesuredanslaplagedefrequencesde0,5MHza5MHz IEC61689:2022-03(en-f Copyright Inte SHIOP THISPUBLICATIONISCOPYRIGHTPROTECTED Copyright@2022IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no partof thispublicationmaybe reproduced orutilized in anyform orbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfrom eitherIECorIEC'smemberNational Committee inthe countryof therequester.If youhaveanyquestionsabout IEC your local IEC member National Committee for further information. Droits de reproduction reserves.Sauf indication contraire, aucune partie de cette publication ne peut etre reproduite ni utilisee sous quelque forme que ce soit et par aucun procede, electronique ou mecanique,y compris la photocopie et les microfilms,sans I'accord ecrit de IEC ou du Comite national de IIEc du pays du demandeur.Si vous avez des questions sur le copyright de 'iEC ou si vous desirez obtenir des droits supplementaires sur cette publication,utilisez les coordonneesci-apresoucontactezleComitenationalde I'iEC de votrepays de residence. IEC Secretariat Tel.: +4122919 0211 3, rue de Varembe [email protected] CH-1211Geneva 20 www.iec.ch Switzerland AboutthelEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards forall electrical,electronicandrelatedtechnologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latestedition,acorrigendumoranamendmentmighthavebeenpublished. IECpublicationssearch-webstore.iec.ch/advsearchform IEC Products &Services Portal-products.iec.ch The advanced search enables to find IECpublicationsbya Discover our powerful search engine and read freely all the variety of criteria (reference number, text, technical publications previews.Witha subscriptionyouwill always have committee,...).Italsogives infomationonprojects,replaced access touptodatecontenttailored to yourneeds. andwithdrawnpublications. Electropedia-www.electropedia.org IEc Just Published-webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology. Stayupto dateonall newIECpublications.JustPublished containingmore than22300terminological entries in English detailsallnewpublicationsreleased.Availableonline andonce and French,with equivalent terms in 19 additional languages. amonthbyemail. Also known as the Intemational Electrotechnical Vocabulary (IEV) online. IECCustomerServiceCentre-webstore.iec.ch/csc If youwishtogiveus yourfeedback onthis publication orneed further assistance,please contact the Customer Service Centre:[email protected]. Aproposde lIEC La Commission Electrotechnique Internationale(lEC)estla premiereorganisation mondiale qui élaboreetpubliedes AproposdespublicationsIEc Le contenu technique des publications lEC est constamment revu. Veuillez vous assurer que vous possedez I'edition la plus recente, un corrigendum ou amendement peut avoir ete publie. RecherchedepublicationsIE Decouvreznotrepuissantmoteurderechercheetconsultez gratuitement tous les apercus des publications. Avec un webstore.iec.ch/advsearchform Larechercheavanceepermetdetrouverdespublications IEC abonnement,vous aurez toujours acces a un contenua jour en utilisant differents criteres (numero de reference, texte, adapte a vos besoins. comite d'etudes, ... Elle donne aussi des informations sur les Electropedia-www.electropedia.org projets etlespublications remplaceesouretirees. Le premier dictionnaire d'electrotechnologie en ligne au monde, IECJustPublished-webstore.iec.ch/justpublished avec plus de 22 300 articles terminologiques en anglais et en Restez informe sur les nouvelles publ