1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22888-0 SANS 61094-3:2009Edition 1IEC 61094-3:1995Edition 1SOUTH AFRICAN NATIONAL STANDARD Measurement microphones Part 3: Primary method
4、for free-field calibration of laboratory standard microphones by the reciprocity technique This national standard is the identical implementation of IEC 61094-3:1995 and is adopted with the permission of the International Electrotechnical Commission. Published by SABS Standards Division 1 Dr Lategan
5、 Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 61094-3:2009 Edition 1 IEC 61094-3:1995 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 76, Acou
6、stics, electro-acoustics and vibration, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in November 2009. SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and free
7、mailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s t
8、andard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscr
9、iption and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094
10、-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by
11、approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the S
12、ABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used
13、and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 61094-3:2009This s tandard may only be used and printed by approved subscription and freemailing c
14、lients of the SABS .SABS Standards Division The objective of the SABS Standards Division is to develop, promote and maintain South African National Standards. This objective is incorporated in the Standards Act, 2008 (Act No. 8 of 2008). Amendments and Revisions South African National Standards are
15、updated by amendment or revision. Users of South African National Standards should ensure that they possess the latest amendments or editions. The SABS continuously strives to improve the quality of its products and services and would therefore be grateful if anyone finding an inaccuracy or ambiguit
16、y while using this standard would inform the secretary of the technical committee responsible, the identity of which can be found in the foreword. Tel: +27 (0) 12 428 6666 Fax: +27 (0) 12 428 6928 The SABS offers an individual notification service, which ensures that subscribers automatically receiv
17、e notification regarding amendments and revisions to South African National Standards. Tel: +27 (0) 12 428 6883 Fax: +27 (0) 12 428 6928 E-mail: salessabs.co.za Buying Standards Contact the Sales Office for South African and international standards, which are available in both electronic and hardcop
18、y format. Tel: +27 (0) 12 428 6883 Fax: +27 (0) 12 428 6928 E-mail: salessabs.co.za South African National Standards are also available online from the SABS website http:/www.sabs.co.za Information on Standards The Standards Information Centre provides a wide range of standards-related information o
19、n both national and international standards, and is the official WTO/TBT enquiry point for South Africa. The Centre also offers an individual updating service called INFOPLUS, which ensures that subscribers automatically receive notification regarding amendments to, and revisions of, international s
20、tandards. Tel: +27 (0) 12 428 6666 Fax: +27 (0) 12 428 6928 E-mail: infosabs.co.za Copyright The copyright in a South African National Standard or any other publication published by the SABS Standards Division vests in the SABS. Unless exemption has been granted, no extract may be reproduced, stored
21、 in a retrieval system or transmitted in any form or by any means without prior written permission from the SABS Standards Division. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any purpose other than implementation, prior written permission must be obtained. Details and advice can be obtained from the Senior Manager. Tel: +27 (0) 12 428 6666 Fax: +27 (0) 12 428 6928 E-mail: infosabs.co.za
