Work on updating IEC 61508 is complete; Edition 2 is now available and may be purchased from BSI
Functional Safety Standards Development
International functional safety standards are under continuous development and maintenance and are revised periodically. The 61508 Association is a member of the BSI subcommittee GEL/65/1 and contributes to the revisions of many of these standards.
BSI Sub-Committee GEL/65/1
Terms of reference:
Under the direction of GEL/65 to:
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Prepare, revise or amend British standards relating to the operation of systems considered as a whole and for the compatibility of main elements of the systems, including interface characteristics, programmable control systems for industrial-processes, evaluation of systems and safe software.
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Prepare, revise or amend British standards establishing terms and definitions related to systems, elements and their functions.
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To participate in any corresponding international work and advise the British Electrotechnical Committee on such work.
GEL/65/1 shadows IEC SC 65A whose scope is:
To prepare standards regarding the generic aspects of systems used in industrial-process measurement and control: operational conditions (including EMC), methodology for the assessment of systems, functional safety, etc.
IEC SC 65A also has a Safety Pilot Function for:
Functional safety of electrical/electronic/programmable electronic systems (which would encompass safety-related software). The Secretariat of IEC SC 65A is currently held by the UK.
The standards coming within the responsibility area of IEC SC/65/A are:
BS EN 61069-4:1998
Industrial-process measurement and control. Evaluation of system properties for the purpose of system assessment. Assessment of system performance
BS EN 61069-5:1995
Industrial-process measurement and control. Evaluation of system properties for the purpose of system assessment. Assessment of system dependability
BS EN 61069-6:1998
Industrial-process measurement and control. Evaluation of system properties for the purpose of system assessment. Assessment of system operability
BS EN 61069-7:1999
Industrial-process measurement and control. Evaluation of system properties for the purpose of system assessment. Assessment of system safety
BS EN 61069-8:1999
Industrial-process measurement and control. Evaluation of system properties for the purpose of system assessment. Assessment of non-task related system properties
BS EN 61326:1998
Electrical equipment for measurement, control and laboratory use. EMC requirements
BS EN 61508-1:2010
Functional safety of electrical/electronic/programmable electronic safety-related systems. General requirements
BS EN 61508-2:2010
Functional safety of electrical/electronic/programmable electronic safety-related systems. Requirements for electrical/electronic/programmable electronic safety-related systems
BS EN 61508-3:2010
Functional safety of electrical/electronic/programmable electronic safety-related systems. Software requirements
BS EN 61508-4:2010
Functional safety of electrical/electronic/programmable electronic safety-related systems. Definitions and abbreviations
BS EN 61508-5:2010
Functional safety of electrical/electronic/programmable electronic safety-related systems. Examples of methods for the determination of safety integrity levels
BS EN 61508-6:2002
Functional safety of electrical/electronic/programmable electronic safety-related systems. Guidelines on the application of IEC 61508-2 and IEC 61508-3
BS EN 61508-7:2010
Functional safety of electrical/electronic/programmable electronic safety-related systems. Overview of techniques and measures
BS EN 61512-1:1999
Batch control. Models and terminology
BS EN 61512-2:2002
Batch control. Data structures and guidelines for languages
BS IEC 61511-1:2003
Functional safety. Safety instrumented systems for the process industry sector. Framework, definitions, system, hardware and software requirements
BS IEC 61511-2:2003
Functional safety. Safety instrumented systems for the process industry sector. Guidelines for the application of BS IEC 61511-1
BS IEC 61511-3:2003
Functional safety. Safety instrumented systems for the process industry sector. Guidance for the determination of the required safety integrity levels
PD IEC/TR 61508-0:2005
Functional safety of electrical/electronic/programmable electronic safety-related systems – Part 0: Functional safety and IEC 61508
PD ROBT-004:2002
EC Directives, functional safety and the role of CENELEC standardization