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immediate downloadReleased: 2020-02-25
BS EN 61511-3:2017 - TC
Tracked Changes. Functional safety. Safety instrumented systems for the process industry sector Guidance for the determination of the required safety integrity levels
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Standard number: | BS EN 61511-3:2017 - TC |
Released: | 2020-02-25 |
ISBN: | 978 0 539 08312 5 |
Status: | Tracked Changes |
DESCRIPTION
BS EN 61511-3:2017 - TC
This standard BS EN 61511-3:2017 - TC Tracked Changes. Functional safety. Safety instrumented systems for the process industry sector is classified in these ICS categories:
- 25.040.01 Industrial automation systems in general
- 25.040.40 Industrial process measurement and control
- 35.240.50 IT applications in industry
- 13.110 Safety of machinery
- 01.040.35 Information technology (Vocabularies)
IEC 61511-3:2016 applies when functional safety is achieved using one or more SIF for the protection of either personnel, the general public, or the environment; may be applied in non-safety applications such as asset protection; illustrates typical hazard and risk assessment methods that may be carried out to define the safety functional requirements and SIL of each SIF; illustrates techniques/measures available for determining the required SIL; provides a framework for establishing SIL but does not specify the SIL required for specific applications; does not give examples of determining the requirements for other methods of risk reduction. This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: Additional H&RA example(s) and quantitative analysis consideration annexes are provided.