IEC 61157 AMD 1-2013 Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment Amendment 1《医疗诊断超声波设备的声学输出报告的标准平均值 修改件1》.pdf
《IEC 61157 AMD 1-2013 Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment Amendment 1《医疗诊断超声波设备的声学输出报告的标准平均值 修改件1》.pdf》由会员分享,可在线阅读,更多相关《IEC 61157 AMD 1-2013 Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment Amendment 1《医疗诊断超声波设备的声学输出报告的标准平均值 修改件1》.pdf(20页珍藏版)》请在麦多课文档分享上搜索。
1、 IEC 61157 Edition 2.0 2013-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment Critres normaliss de dclaration des missions acoustiques des appareils de diagnostic mdical ultrasons IEC61157:2007/A1:2013AME
2、NDMENT 1 AMENDEMENT 1 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm
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16、RNATIONAL STANDARD NORME INTERNATIONALE Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment Critres normaliss de dclaration des missions acoustiques des appareils de diagnostic mdical ultrasons INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTR
17、OTECHNIQUE INTERNATIONALE H ICS 11.040.50, 17.140.50 PRICE CODE CODE PRIX ISBN 978-2-83220-586-0 AMENDMENT 1 AMENDEMENT 1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publ
18、ication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 61157 Amend.1 IEC:2013 FOREWORD This amendment has been prepared by IEC technical committee 87: Ultrasonics. The text of this amendment is based on the following
19、 documents: FDIS Report on voting 87/517/FDIS 87/523/RVD Full information on the voting for the approval of this amendment can be found in the report on voting indicated in the above table. The committee has decided that the contents of this amendment and the base publication will remain unchanged u
20、ntil the stability date indicated on the IEC web site under “http:/webstore.iec.ch” in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. _ 2 Normative references Replace the dated references to IEC 6
21、0050-801:1994, ISO 16269-6:2005 and ISO/IEC Guide 98:1994 by the following undated references: IEC 60050-801, International Electrotechnical Vocabulary Chapter 801: Acoustics and electroacoustics ISO 16269-6, Statistical interpretation of data Part 6: Determination of statistical tolerance intervals
22、 ISO/IEC Guide 98-3, Uncertainty of measurement Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) Replace the existing reference to IEC 62127-1 with the following: IEC 62127-1:2007, Ultrasonics Hydrophones Part 1: Measurement and characterization of medical ultrasonic fields u
23、p to 40 MHz Amendment 1:2013 Add the following new reference: IEC 60050-802, International Electrotechnical Vocabulary Chapter 802: Ultrasonics 61157 Amend.1 IEC:2013 3 3 Terms, definitions and symbols Replace in definitions 3.14, 3.20, 3.31 and 3.32 “expressed in watts per metre squared” by “expres
24、sed in watts per square metre” Replace in definitions 3.6 and 3.18 “expressed in metres squared” by “expressed in square metres” 3.2 acoustic pulse waveform Remove the numbering from Note 1 and replace existing Note 2 by the following: SOURCE: IEC 62127-1:2007, definition 3.1 3.4.1 zero-crossing aco
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