ISO INTERNATIONAL STANDARD 7240-3 Secondedition 2020-03 Fire detection and alarm systems Part 3: Audible alarm devices Systemes de détection et d'alarme d'incendie - Partie 3: Dispositifs d'alarme sonores Reference number ISO7240-3:2020(E) ISO @IS02020 IS0 7240-3:2020(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2020 - All rights reserved

ISO 7240-3 2020 Fire detection and alarm systems — Part 3 Audible alarm devices

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本文档由人生无常于 2024-08-02 23:42:40上传分享

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