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3. Study of deviations
3.1 Study flow chart
This phase of the study is the heart of the HAZOP method. Through an iterative mechanism on each of the nodes, the systematic association of parameters/key words should make it possible to exhaustively cover all the potential deviations or problems conceivable in the installation under study. The HAZOP deviation study flow chart is shown in figure 2 .
Note. The deviation analysis can be carried out by applying a keyword to each parameter in reverse.
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Study of deviations
Risk assessment and evaluation
Bibliography
The method was first published in 1974 by LAWLEY*, then successively described in three application guides, the first in 1976 by KNOWLTON* and SHIPLEY of ICI, the second in 1977 by the Chemical Industries Association (CIA)* and the third in 1981, again by KNOWLTON*, but on behalf of Chemetics International Ltd. These guides were followed twenty years later, in 2001, by the international standard IEC 61882 entitled: "Hazard...
Standards and norms
- Étude de danger et d'exploitabilité (études HAZOP) Guide d'application - CEI 61882 – Norme Internationale - 2001
- Safety aspects – Guidelines for inclusion in standards - ISO/CEI 51 - 1999
- Risk management – Vocabulary Guidelines for use in standards - Guide ISO/CEI 73 - 2001
- Sécurité fonctionnelle des systèmes électriques, électroniques programmables relatifs à la sécurité - CEI 61508 - 1re 1998...
Regulations
SEVESO II Directive: 96/82/EC on the control of major-accident hazards involving dangerous substances.
Arrêté du 29 septembre 2005 relatif à l'évaluation et à la prise en compte de la probabilité d'occurrence, de la cinétique, de l'intensité des effets et de la gravité des conséquences des accidents potentiels dans les études de dangers des installations classées soumises à autorisation.
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RELIASS (Reliability Safety Software ). Cams Hall-Cams Hill, FAREHAM, PO 16, 8AB Hampshire – UK http//www.reliability-safety-software.com/ Email : [email protected]
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PDF-X Change Viewer Version 2.0 Tracker Software Products 2008. http://www.docu-track.com/
Software tools
CISIA June 2000 The Bayesian (version for Windows Vista, [Software] CISIA 1, avenue Herbillon, 94160 Saint-Mandé, France.
Websites
AMIRE Gilles Un Nouveau Guide Internet http://www.imaginet.fr/ime/toc.htm (page consulted June 23, 1999).
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Cerium electrolytic oxidation process and electrolysis unit for its implementation CA2582058.
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