HAZOP_GUIDE_BRITISH_STANDARD_IEC_61882_2001

Nor is it usual for the study leader to have the

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Unformatted text preview: actions/recommendations are implemented (see 6.1). 6.6.5 Signing off the documentation At the end of the study, the report of the study should be produced and agreed upon by the team. If agreement cannot be reached, reasons should be recorded. 6.7 Follow-up and responsibility HAZOP studies are not aimed at redesigning a system. Nor is it usual for the study leader to have the authority to ensure that the study team's recommendations are acted upon. Before any significant changes resulting from the findings of the HAZOP have been implemented, and once the revised documentation is available, the project manager should consider reconvening the HAZOP team to ensure that no new hazards or operability or maintenance problems have been introduced. In some cases, as indicated in 6.3, the project manager may authorize the HAZOP team to implement the recommendations and carry out design changes. In this case the HAZOP team may be required to do the following additional work: · · v erify the revisions and changes and communicate them to the project management and receive their approval; · 24 42 42 a gree on outstanding problems and revise the design or the operating and maintenance procedures; c onduct further HAZOP studies of revisions, including system interfaces. © BSI 28 1002−80ISB © 1002−80 ISB August 2001 BS IEC 61882:2001 6 1882 Ó I EC:2001 7 – 26 – Audit Licensed Copy: Puan Ms. Norhayati, Petroliam Nasional Berhad 4397000, 01 October 2003, Uncontrolled Copy, (c) BSI The program and results of HAZOP studies may be subjected to internal company or regulatory authority audits. Criteria and issues which may be audited should be defined in the company’s procedures. These may include: personnel, procedures, preparations, documentation and follow-up. A thorough check of technical aspects should also be included. © BSI ISB © 1002−80 August 1002−8028ISB © 2001 25 52 52 BS IEC 61882:2001 6 1882 Ó I EC:2001 – 27 – Annex A (informative) Licensed Copy: Puan Ms. Norhayati, Petroliam Nasional Berhad 4397000, 01 October 2003, Uncontrolled Copy, (c) BSI Methods of reporting A.1 Reporting options Various recording options are available. · M anual recording on prepared forms can be perfectly adequate, particularly for small studies, provided that the basic needs for legibility are met. · M anuscript HAZOP notes may be word-processed after the session, to produce suitable quality of copy for issue. · A p ortable computer, with standard word-processing or spread-sheet software, may be used to produce the worksheets during the session. · S pecific PC software codes, of various degrees of sophistication may assist in the recording of the HAZOP results. Using a package that enables the notes of the examination to be displayed (by overhead projector) as they are recorded can provide further savings. A.2 HAZOP worksheet A worksheet to record the results of examinations and follow-up should be developed or adopted. Regardless of the reporting option adopted, the worksheet should contain the essential features to suit particular requirements, examples of which are given below. The layout of the worksheet will vary depending on whether it is a part of a manual or a computerized reporting program. The manually completed form will normally consist of a header and columns. The header may contain the following information: project, subject of the study, design intent, part of the system being examined, members of the team, drawing or document being examined, date, page number, etc. The headings (titles) of the columns may be as follows: a) for those completed during the examination: 1) reference number; 2) element; 3) guide word; 4) deviation; 5) cause; 6) consequences; 7) action required. Additional information such as safeguards, severity, comments and risk ranking may also be recorded. 26 62 62 © BSI 28 1002−80ISB © 1002−80 ISB August 2001 BS IEC 61882:2001 6 1882 Ó I EC:2001 – 28 – b) for those completed during the follow-up: 1) recommended action; 2) priority/risk ranking; 3) responsibility for action; 4) status; Licensed Copy: Puan Ms. Norhayati, Petroliam Nasional Berhad 4397000, 01 October 2003, Uncontrolled Copy, (c) BSI 5) comments. NOTE The columns mentioned in points 1, 2 and 3 can also be completed at the meetings themselves. Computerized reporting allows greater flexibility in layout, better presentation of information and ease of preparation of required reports such as: · d etailed worksheets; · r eports by causes and/or consequences; · f ollow-up reports with responsibilities and status. Customized reporting forms can be developed easily using available word processing systems. In addition, several software packages are available on the market, which simplify the task of recording data and generating reports. Such packages are valuable in aiding the task of the recorder. However, some packages also try to take over the role of the study leader by applying a checklist of guide word – element/characteristic pairs as an alternativ...
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