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BS EN 31010:2010

BS EN 31010:2010

$215.11

Risk management. Risk assessment techniques

Published By Publication Date Number of Pages
BSI 2010 94
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This International Standard is a supporting standard for ISO 31000 and provides guidance on selection and application of systematic techniques for risk assessment.

Risk assessment carried out in accordance with this standard contributes to other risk management activities.

The application of a range of techniques is introduced, with specific references to other international standards where the concept and application of techniques are described in greater detail.

This standard is not intended for certification, regulatory or contractual use.

This standard does not provide specific criteria for identifying the need for risk analysis, nor does it specify the type of risk analysis method that is required for a particular application.

This standard does not refer to all techniques, and omission of a technique from this standard does not mean it is not valid. The fact that a method is applicable to a particular circumstance does not mean that the method should necessarily be applied.

NOTE This standard does not deal specifically with safety. It is a generic risk management standard and any references to safety are purely of an informative nature. Guidance on the introduction of safety aspects into IEC standards is laid down in ISO/IEC Guide 51.

PDF Catalog

PDF Pages PDF Title
6 English
CONTENTS
8 INTRODUCTION
9 1 Scope
2 Normative references
3 Terms and definitions
4 Risk assessment concepts
4.1 Purpose and benefits
10 4.2 Risk assessment and the risk management framework
4.3 Risk assessment and the risk management process
13 5 Risk assessment process
5.1 Overview
Figures
Figure 1 – Contribution of risk assessment to the risk management process
14 5.2 Risk identification
5.3 Risk analysis
17 5.4 Risk evaluation
18 5.5 Documentation
19 5.6 Monitoring and reviewing risk assessment
5.7 Application of risk assessment during life cycle phases
6 Selection of risk assessment techniques
6.1 General
6.2 Selection of techniques
20 6.3 Application of risk assessment during life cycle phases
6.4 Types of risk assessment techniques
23 Annex A (informative) Comparison of risk assessment techniques
24 Tables
Table A.1 – Applicability of tools used for risk assessment
25 Table A.2 – Attributes of a selection of risk assessment tools
29 Annex B (informative) Risk assessment techniques
36 Table B.1 – Example of possible HAZOP guidewords
39 Figure B.1 – Dose-response curve
51 Figure B.2 – Example of an FTA from IEC 60300-3-9
54 Figure B.3 – Example of an event tree
57 Figure B.4 – Example of cause-consequence analysis
59 Figure B.5 – Example of Ishikawa or Fishbone diagram
60 Figure B.6 – Example of tree formulation of cause-and-effect analysis
66 Figure B.7 – Example of human reliability assessment
68 Figure B.8 – Example bow tie diagram for unwanted consequences
72 Figure B.9 – Example of system Markov diagram
Table B.2 – Markov matrix
73 Figure B.10 – Example of state transition diagram
74 Table B.3 – Final Markov matrix
76 Table B.4 – Example of Monte Carlo simulation
79 Figure B.11 – Sample Bayes’ net
Table B.5 – Bayes’ table data
Table B.6 – Prior probabilities for nodes A and B
Table B.7 – Conditional probabilities for node C with node A and node B defined
80 Table B.8 – Conditional probabilities for node D with node A and node C defined
Table B.9 – Posterior probability for nodes A and B with node D and node C defined
Table B.10 – Posterior probability for node A with node D and node C defined
81 Figure B.12 – The ALARP concept
86 Figure B.13 – Part example of a consequence criteria table
Figure B.14 – Part example of a risk ranking matrix
87 Figure B.15 – Part example of a probability criteria matrix
92 Bibliography

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BS EN 31010:2010
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