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Functional Safety Services
SAFETY NONSTOP
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Facts of Life
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Almost every day process incidents continue to occurin organisations that are not implementing adequate safety control measures. The majority of these incidents do not cause harm to the workforce or the environment, however some incidents have been serious enough to draw the attention of the authorities and media.
After the Piper Alpha disaster in the North Sea, the UK Health and Safety Executive (HSE) was commissioned to produce a safety report which was entitled Out of Control. Based on thirty-four workplace incidents involving process control, it was found that the majority of causes for incidents originated in areas outside the scope where safety instrumented systems were involved.
It is clear that safety instrumented systems are not the only area for concern in a safety critical project. People, organisations and the processes they follow are also important areas for safety critical applications.
Following the findings of Out of Control various initiatives have been taken by different authorities to address the implementation of safety standards. As an example, the European Union recently issued the Seveso II Directive that was enacted to prevent and reduce the likelihood of further workplace incidents by introducing the development of new managerial and organisational methods known as Safety Management Plan.
“…One of the main objectives pursued by this obligation is to prevent or reduce accidents caused by management factors which have proven to be a significant causative factor in over 90% of the accidents in the European Union since 1982.”
Chemical Accidents (Seveso II) - Legislation
Distribution of failures
44%SPECIFICATION
20%CHANgES AFTEr COMMISSIONINg
15%OPErATION AND MAINTENANCE
6%INSTALLATION AND COMMISSIONINg
15%DESIgN AND IMPLEMENTATION
2nd edition, Health & Safety Executive HSE - UK
Health and Safety Executive (HSE) carried out an analysis of thirty-four workplace incidents in the United Kingdom. The pie chart shows the root cause of failures in each phase of the safety lifecycle.
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Our goal is to help you do the right thing.
Some organisations believe that if they purchase a system which has a particular Safety Integrity Level (SIL), then their workplace will be completely free from hazards and incidents. Unfortunately this is not the case. SIL is a performance target an organisation aims for when measuring the reliability and effectiveness of their hardware and software systems. It does not safeguard their organisation from all workplace hazards, and it does not protect them from the largest workplace threat, human error.
Internationally recognised safety standards AS(IEC) 61508 and AS(IEC) 61511 address the entire functional safety lifecycle, not just SIL. The functional safety lifecycle provides organisations and personnel with a step-by-step approach based on the best engineering practices that result in optimal safety. Functional safety does not only depend on the performance of safety instrumented systems operating correctly, it also defines the correct processes and procedures to be followed to achieve this.
HIMA’s mission is to understand your needs, facilitate and develop a safety culture in your organisation while simultaneously helping you maximise the performance of your plant without jeopardising safety.
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the safety lifecycle
Helps you identify, manage and reduce risks. This flowchart shows the necessary steps for a hazard free organisation.
AS(IEC) 61511 - Part 1
OPErATION AND MAINTENANCE
DECOMMISSIONINg
MODIFICATION
3
SAFETy rEqUIrEMENTS SPECIFICATION
FOr THE SAFETy INSTrUMENTED
SySTEM
6
8
7
HAzArD AND rISK ASSESSMENT
ALLOCATION OF SAFETy FUNCTIONS TO
PrOTECTION LAyErS
INSTALLATION, COMMISSIONINg AND vALIDATION
5
10
MANAgEMENT OF
FUNCTIONAL SAFETy AND FUNCTIONAL
SAFETy ASSESSMENT AND AUDITINg
4
DESIgN AND ENgINEErINg
OF SAFETy INSTrUMENTED
SySTEM
11
SAFETy LIFECyCLE
STrUCTUrE AND
PLANNINg
9
vErIFICATION
1
2
DESIgN AND DEvELOPMENT
OF OTHEr MEANS OF rISK
rEDUCTION
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HIMA has experienced and trained consultants who understand your needs while providing expert technology independent advice to achieve compliance with safety standards AS(IEC) 61508 and AS(IEC) 61511. Services HIMA provides are:
Let HIMA help you!
COrPOrATE FUNCTIONAL SAFETy gAP ANALySIS
Is your organisation’s actual functional safety management compliant with safety standards AS(IEC) 61508 and AS(IEC) 61511? HIMA can perform a gAP analysis to provide you with an assessment report enabling your organisation to compare your actual performance with your potential performance. The report will contain information required to meet your functional safety performance objectives whilst satisfying safety standards.
PrOCESS HAzArD AND rISK ANALySIS
If an organisation does not identify all of the process hazards within its plant, how is it possible to determine and design the appropriate safety system to prevent these hazards? HIMA can help you facilitate a hazard and risk assessment by utilising techniques such as Hazard and Operability Study (HAzOP), Checklists, What-if analysis, Fault Tree Analysis (FTA) and Event Tree Analysis (ETA) to determine the potential problems and risks your personnel are exposed to.
SAFETy INTEgrITy LEvEL (SIL) ASSESSMENT
After determining the different process hazards at a workplace or on a project, it is important to identify the risks and risk prevention methods required to protect personnel, the environment and capital assets. Once identified, an organisation must ask itself whether the risk is within its tolerable level of acceptance. If the risk is outside the tolerable level, the organisation must then determine what SIL (reliability) for safety instrumented systems is required for the risk to be below the acceptable level.
HIMA can facilitate a SIL assessment workshop utilising different techniques such as Layer of Protection Analysis (LOPA), risk graphs, FTA and ETA for your organisations needs.
SAFETy rEqUIrEMENTS SPECIFICATION (SrS)
Safety requirements Specification (SrS) is a document that assists system designers in making key decisions for designing safety instrumented systems. According to the Out of Control report, forty-four percent of all system failures relate back to specification errors, therefore it is vital that all documentation is accurate.
As it is an integral part of the safety lifecycle model, HIMA can provide expert consultancy to collate all the information gathered during the process hazard and risk analysis and SIL assessment workshop to assist you in the development and/or facilitation of an SrS.
INDEPENDENT SySTEM DESIgN
In order to meet the safety requirements defined in the SrS document and in the risk and analysis phase of the safety lifecycle, HIMA can assist you in the independent design, development and documentation of a cost effective safety design for safety instrumented systems in your organisation.
SAFETy INTEgrITy LEvEL (SIL) vErIFICATION
Safety systems are designed to reduce the risk of process incidents from occurring and can be defined at different levels depending on what an organisation considers to be acceptably safe. In order to verify whether the safety system design meets the safety requirements, a SIL verification is required.
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HIMA can provide a detailed SIL verification report, taking into account Probability of Failure on Demand (PFD), failures, repair and periodic proof testing procedure concepts.
rEvIEW OF OPErATION, MAINTENANCE AND rEPAIr PrOCEDUrES
Safety Standards AS(IEC) 61508 and AS(IEC) 61511 provide guidelines on how safety systems need to be operated, maintained, repaired and modified. HIMA can conduct reviews to make these procedures simple, effective and adequate, whilst always ensuring its alignment with your organisations safety culture.
FUNCTIONAL SAFETy MANAgEMENT DEvELOPMENT
The purpose of developing a Functional Safety Management (FSM) plan is to ensure responsibilities are properly delegated and the correct tasks are implemented to maintain a safety culture within an organisation.
HIMA can perform a site survey to identify your organisations needs and help facilitate and support the development of your FSM plan to align with your organisations existing safety policy.
rEgULATOry COMPLIANCE
Some regulatory bodies have incorporated AS(IEC) 61508 and AS(IEC) 61511 standards as references of best engineering practices and are requesting other organisations to adhere to these standards to ensure safety practices are being complied with.
HIMA can provide a wide range of studies and workshops to assist you in the development and preparation of your safety reports/safety cases before submitting them to the regulators.
TrAININg
Having a safety system that complies with all safety requirements is not the only factor that guarantees an organisation to be safe from process incidents. If personnel are not competent and properly trained it is impossible to achieve and maintain functional safety.
HIMA conducts regular functional safety training and workshops for professionals of all levels who work with functional safety as part of their job. These workshops are:
- AS 61511 Analysis and Design of SIS
- AS 61511 Operation and Maintenance of SIS
- TÜv Functional Safety Program
For more information on the above HIMA courses, please see the attached training flyers or visit our website www.hima.com.au
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For further information, contact HIMA:
head officePerthUnit 2, 21 Frederick Street, Belmont, WA 6104 AustraliaTel: +61 (0) 8 9323 2100 Fax: +61 (0) 8 9323 2192Email: [email protected]
MelbourneUnit 13, 21 Sabre Drive, Port Melbourne, vIC 3207 AustraliaTel: +61 (0) 3 8645 3600 Fax: +61 (0) 3 9645 3295Email: [email protected]
brisbaneUnit 21, 8 riverland Drive, Loganholme, qLD 4129 AustraliaTel: +61 (0) 7 3412 3000 Fax: +61 (0) 7 3412 3049Email: [email protected]
For a full list of our services and training courses, visit:
www.hima.com.au
SAFETY NONSTOP
HIMA AUSTrALIA PTy LTD (PErTH) IS CErTIFIED By BUrEAU vErITAS IN ACCOrDANCE WITH
AS/NzS ISO 9001:2008 AND THE FUNCTIONAL SAFETy MANAgEMENT PrINCIPLES OF AS IEC 61511.1:2004