Functional Safety 61508/61511

Following a number of major incidents in the process industry since the 1970's, operators of process plants that utilise dangerous substances are required to comply with European Directive 96/82/EC (Seveso II). This is implemented in the UK as the COMAH Regulations (1999) and states "Every operator shall take all measures necessary to prevent major accidents and limit their consequences to persons and the environment".

To prevent an incident, the operator must to know the risks associated with their process. Once the risks are known, the operator must then use good engineering judgement to put appropriate risk reduction measures in place

We provide ongoing support to plant and safety managers to ensure that their Instrumented Protective Systems comply with their risk assessments. Instrument Response has supported a number of clients through the process of risk assessment and safety system validation and utilises dedicated tools to aid the process. Our staff is well placed to assist site personnel to keep abreast of new legislation and implement changes necessary for the site to remain compliant.

The Instrument Response Team are qualified and highly experienced across a wide range of technologies and sectors.

• We offer:
• Safety Integrity Level determination
  
  Using the methods detailed in IEC 61508/61511, a pragmatic approach is adopted to quantify the risks identified in the HAZOP / HAZAN. From this the appropriate integrity safety system can be designed.
• Survey and validation of Safety Instrumented Systems (SIS)
  Surveys of existing Safety Instrumented Systems to verify their suitability.
• SIS Test Methods & Routine Test Reporting
  Development of tests and testing systems to ensure SIS's are performing to required standard.
• PFD Failure rate calculation of SIS's
  Quantitative and qualitative methods for determining SIS reliability.
• Gap analysis
  Identifying short falls in equipment that may compromise safety and compliance.
• Instrument Database
  A dedicated database to manage information associated with all parts of the SIS.
• Engineering Design and Project Management
  An engineering design and project management capability with continued experience of working with safety related systems. We can help clients implement improvement and compliance projects.
• Ongoing support, routine evaluation, proven-in-use assessments
  We provide ongoing support, training and communication to stakeholders to ensure that once compliance is achieved, it is maintained.