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Unformatted text preview: Check whether controls are adequate EK – 0 19 – 8 BS IEC 61882:2001 55 55 Licensed Copy: Puan Ms. Norhayati, Petroliam Nasional Berhad 4397000, 01 October 2003, Uncontrolled Copy, (c) BSI Guide word Element Deviation Possible causes Consequences Safeguards Comments Actions required Action by 10 Other than Vaporize Possible explosion in the furnace Ignition of a mixture of natural gas and air Vaporizer destroyed Interlocks, etc. on furnace Safeguards may not be adequate – C onsider installing a fire shut-off valve on oil supply NE – R eview safeguards on furnace preventing explosion Vapour oil flow to other than the process inlet – L eakage – – F ailure of coil C onsider installing a fire shutoff valve on oil supply – P rovide for emergency snuffing steam to the furnace – C onsider installing a high temperature alarm or trip in the stack to shut gas supply valves – E nsure routine inspection of coil 6 8812 E I2:C100 No. BS IEC 61882:2001 56 65 Table B.6 ( continued) 11 Other than Oil flow Major fire fed from oil supply Major fire in furnace fed from oil supply and back flow of oil vapour from process. Emission of fumes and smoke. None Probably damage of the fire box NE – 1 11 – © BSI 28 August 2001 1002−80 ISB © BS IEC 61882:2001 6 1882 Ó I EC:2001 – 59 – Bibliography A Guide to Hazard and Operability Studies. C hemical Industries Association, London, UK, (1977), 1992. (2) Das PAAG-Verfahren. I nternational Social Security Association, (ISSA), c/o B.G. Chemie, Heidelberg, Germany, 2000, ISBN 92-843-7037-X. (3) Licensed Copy: Puan Ms. Norhayati, Petroliam Nasional Berhad 4397000, 01 October 2003, Uncontrolled Copy, (c) BSI (1) Storingsanalyse Waarom? Wanner? Hoe? D utch Labour Inspectorate, 1979. Body of text in Dutch, appendices in English. (4) Kletz, Trevor A. H AZOP and HAZAN – Identifying and Assessing Chemical Industry Hazards , Institution of Chemical Engineers, Rugby, UK, 1999, ISBN 0-85295-421-2. (5) Knowlton, Ellis. A n Introduction to Hazard and Operability Studies, the Guide Word Approach , Chemetics International, Vancouver, Canada, 1992, ISBN 0-9684016-0-0. (Also available in French, Spanish, Finnish, Arabic, Chinese, Hindi and Korean). (6) Knowlton, Ellis. A m anual of Hazard & Operability Studies, The creative identification of deviations and disturbances. C hemetics International, Vancouver, Canada, 1992, ISBN 0-9684016-3-5. (7) Redmill, Felix; Chudleigh, Morris and Catmur, James. S ystem Safety: HAZOP and Software HAZOP . Wiley, 1999, ISBN 0-471-98280-6. (8) Crawley, Frank; Preston, Malcolm and Tyler, Brian, H AZOP: Guide to best practice. Guidelines to best practice for the process and chemical industries . European Process Safety Centre, Chemical Industries Association & Institution of Chemical Engineers. Rugby, England, IChem, 2000, ISBN 0-85295-427-1. (9) Guidelines for Hazard Evaluation Procedures. C enter for Chemical Process Safety of the American Institute of Chemical Engineers, New York, USA, 1999, ISBN 0-81690491-X. (10) Defence Standard 00-58, HAZOP Studies on Systems containing Programmable Electronics, M inistry of Defence, UK, 2000. ___________ © BSI ISB © 1002−80 August 1002−8028ISB © 2001 57 75 75 BS IEC 61882:2001 BSI — British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions Licensed Copy: Puan Ms. Norhayati, Petroliam Nasional Berhad 4397000, 01 October 2003, Uncontrolled Copy, (c) BSI British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: 020 8996 9001. Fax: 020 8996 7001. Standards are also available from the BSI website at http://www.bsi-global.com. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Further information about BSI is available on the BSI website at http://www.bsi-global.com. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI. 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 other purpose than implementation then the prior written permission of BSI must be obtained. BSI 389 Chiswick High Road London W4 4AL If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070....
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