1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60079-29-4 Explosive Atmospheres Part 29-4: Gas Detectors Performance Requirements of Open Path Detectors for Flammable Gases STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
2、RTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Explosive Atmospheres Part 29-4: Gas Detectors Performance Requirements of Open Path Detectors for Flamma
3、ble Gases, UL 60079-29-4 First Edition, Dated August 24, 2018 Summary of Topics Adoption of IEC 60079-29-4, Explosive Atmospheres Part 29-4: Gas Detectors Performance Requirements of Open Path Detectors for Flammable Gases (rst edition issued by IEC November 2009) as a new IEC-based UL standard, UL
4、60079-29-4 with US Differences. As noted in the Commitment for Amendments statement located on the back side of the title page, UL and FM are committed to updating this harmonized standard jointly. The new requirements are substantially in accordance with Proposal(s) on this subject dated November 1
5、7, 2017 and February 16, 2018. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is witho
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9、urchaser is storing an electronic Standard on the purchasers computer system. AUGUST 24, 2018 UL 60079-29-4 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 24, 2018 UL 60079-29-4 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT
10、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FM Approvals LLC ANSI/FM 60079-29-4-2018 First Edition Underwriters Laboratories Inc. UL 60079-29-4 First Edition Explosive Atmospheres Part 29-4: Gas Detectors Performance Requirements of Open Path Detectors for Flammabl
11、e Gases August 24, 2018 ANSI/UL 60079-29-4-2018UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the FM Approvals LLC and Underwriters Laboratories Incorporated (UL). Comments or pro
12、posals for revisions on any part of the standard may be submitted to FM Approvals or UL at any time. FM and UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue. 978-1-941546-54-3 Copyright 2018 FM Approvals LLC These materials
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14、 to this Standard should be submitted to FM. The most recent designation of ANSI/FM 60079-29-4 as an American National Standard (ANSI) occurred on August 24, 2018. Copyright 2018 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a
15、 Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the First Edition. The most recent designation of ANSI/UL 60079-29-4 as a
16、n American National Standard (ANSI) occurred on August 24, 2018. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. The National Difference Page and IEC Foreword are also excluded from the ANSI approval of IEC-based standards
17、. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. To purchase UL Standards, visit ULs Standards Sales Site at http:/ H
18、owToOrder.aspx or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PREFACE 4 National Differences 6 FOREWORD 7 1 Scope .9 2 Normative references .10 3 Terms and denitions 11 3.1 Equipment 11 3.2 Alarms .
19、11 3.3 Signals and indications .12 3.4 Gaseous atmospheres .12 3.5 Optical equipment .14 3.6 Performance characteristics 15 4 General requirements 15 4.1 Detection equipment .15 4.2 Construction 16 4.3 Software-controlled equipment 18 5 Test requirements 20 5.1 Introduction .20 5.2 General requireme
20、nts for tests 21 5.3 Normal conditions for test 25 5.4 Test methods .28 6 Field verication equipment .41 7 Information for use .41 7.1 Labelling and marking 41 7.2 Instruction manual .42 Annex A (informative) Water vapour test apparatus Bibliography AUGUST 24, 2018 ANSI/FM 60079-29-4-2018 UL 60079-2
21、9-4 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is the harmonized FM and UL standard for Explosive Atmospheres Part 29-4: Gas Detectors Performance Requirements of Open Path Detectors for Flammable Gases. It is the rst edit
22、ion of FM 60079-29-4 and the rst edition of UL 60079-29-4. This harmonized standard is based on IEC Publication 60079-29-4: rst edition, Explosive Atmospheres Part 29-4: Gas Detectors - Performance Requirements of Open Path Detectors for Flammable Gases issued November 2009, as revised by corrigendu
23、m 1 issued August, 2010. IEC publication 60079-29-4 is copyrighted by the IEC. At the time of this publication, IEC 60079-29-4, Edition 1 is available from IEC in English only. This harmonized standard was prepared by FM Approvals LLC (FM) and Underwriters Laboratories Inc. (UL). This standard is co
24、nsidered suitable for use for conformity assessment within the stated scope of the standard. Application of Standard Where reference is made to a specic number of samples to be tested, the specied number is to be considered a minimum quantity. Note: Although the intended primary application of this
25、standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level of Harmonization This standard adopts the IEC text with national differences. This standard is published as an identic
26、al standard for FM and UL. An identical standard is a standard that is exactly the same in technical content except for national differences resulting from conicts in codes and governmental regulations. Presentation is word for word except for editorial changes. All national differences from the IEC
27、 text are included in the FM and UL versions of the standard. While the technical content is the same in each organizations version, the format and presentation may differ. Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based on
28、 the literal text to determine compliance with the standard in accordance with the procedural rules of the standards development organization. If more than one interpretation of the literal text has been identied, a revision is to be proposed as soon as possible to each of the standards development
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30、mission Publication IEC 60079-29-4 Explosive Atmospheres Part 29-4: Gas Detectors Performance Requirements of Open Path Detectors for Flammable Gases, copyright 2009, are used in this standard with the consent of the International Electrotechnical Commission. The IEC Foreword and Introduction are no
31、t a part of the requirements of this standard but are included for information purposes only. For UL, the text, gures and tables of IEC publication 60079-29-4, Explosive Atmospheres Part 29-4: Gas Detectors Performance Requirements of Open Path Detectors for Flammable Gases, copyright 2009 are used
32、in this standard with the consent of the IEC and the American National Standards Institute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. ANSI should be contacted regarding the reproduction of any portion of the IEC material. The IEC Foreword and Introduction are
33、 not a part of the requirements of this standard but are included for information purposes only. Copies of IEC Publication 60079-29-4 may be purchased from ANSI, 25 West 43rd Street, 4th Floor, New York, New York, 10036, (212) 642-4900. These materials are subject to copyright claims of IEC and UL.
34、No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of UL. All requests pertaining to the Explosive Atmospheres Part 29-4: Gas Detectors Performance Requirements of Open Path Detectors for Flammable Gases, UL 60079
35、-29-4 Standard should be submitted to UL. The following people served as members of STP 9200 and participated in the review of this standard: NAME COMPANY *J. Miller, Chair Detector Electronics Corporation S. Baliga General Monitors W. Bennett Mine Safety Appliances Co. G. Black QPS Evaluation Servi
36、ces Inc. J. Chin CSA Group M. Coppler Det Norske Veritas Certication Inc. G. Garcha Gurinder Garcha Consulting R. Goins Lyondell Basell S. Henney FM Approvals LLC T. Larson Rosemount Analytical D. Mills UL LLC B. Saxinger Honeywell Analytics R. Seitz ARTECH Engineering M. Spencer Transcanada / Colum
37、bia Pipeline Group J. Thomason Omni Industrial Systems Inc. A. Vial Shell Exploration any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and nongovernmental organizations liaising with the IEC also participate in this
38、 preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
39、 consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable eff
40、orts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publicat
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42、ependent certication bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certication bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No lia
43、bility shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (inc
44、luding legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application o
45、f this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60079-29-4 has been prepared by IEC technica
46、l committee 31: Equipment for explosive atmospheres. This standard supplements and modies the general requirements of IEC 60079-0. Where a requirement of this standard conicts with a requirement of IEC 60079-0, the requirement of this standard shall take precedence. AUGUST 24, 2018 ANSI/FM 60079-29-4-2018 UL 60079-29-4 7
