Our process safety consultancy helps organisations identify hazards, assess risk and deliver compliant safety studies aligned with international standards and industry best practice.
If you have any questions about our Process Safety Consultancy services please call us on 01462 713313 or contact us online.
HazOp is a systematic technique for reviewing a process design to understand the hazards present and identify appropriate control measures.
Layer of Protection Analysis (LOPA) is a semi-quantitative method of risk assessment. It is used to analyse “high severity” scenarios identified during HazOp in more detail. (These are usually the events that could potentially cause a fatality or another incident of equivalent severity.)
LOPA is often used for “SIL Determination”, where a SIS Safety Instrumented System is required. In other words, LOPA is used to decide the reliability (SIL Safety Intergrity Level ) required from the SIF Safety Instrumented Function . Read more about LOPA.
Because Hazard & Risk Assessment is one of the lifecycle phases of the functional safety standard IEC 61511, the H&RA must be “verified” as part of compliance with the standard. The purpose of verification is to check that the work has been done correctly.
All work done to deliver the lifecycle phases should be “assessed”. The purpose of Functional Safety Assessment is to check that suitably competent people were selected to carry out the work, and that it has been done in accordance with the relevant procedures and plans.
Read more about Functional Safety Assessments at Method Functional Safety
Find out how we we can help you with your Process Safety challenges by contacting our team on support@methodprosafe.com or +44 (0)1462 713313
FSA 4 of Nitrogen blanket SIS
Project to carry out a Stage 2 Functional Safety Assessment (FSA 2). The assessment assessed the compliance of the duty holder and project vendors’ functional safety management systems in relation to the delivery of a major new installation.
Review of LOPA for toxic hazards associated with unburnt blast furnace gas.
FSA 1 of Sulphur project hazard studies and SRS
E: support@methodprosafe.com. T: 44 (0)1462 713313. W: www.methodprosafe.com