How to assess IACS cyber vulnerability using a Security CHAZOP

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The recently updated process sector safety instrumented system (SIS) standard IEC 61511 now requires that a “security risk assessment is carried out to identify security vulnerabilities of the SIS” [1]. But how should such an assessment be approached, and what can you do to prepare for it?There have been well publicized examples of cyber-security breaches […]

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Killer tools for improving safety and reducing project cost

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Read on to see the software buyer’s guide table…a comparison of 4 cloud-based software solutions. This blog will will look at the main reasons why using such software is better than many traditional approaches, which companies are working in the domain and the questions you should ask before you choose a solution.The safety life-cycle was […]

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Key safety instrumented system operations advice

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Operation and maintenance procedures for Safety Instrumented Systems (SIS) will vary from company to company. However, there are some specific requirements that need to be covered for safe continued operation. The first blog on this topic discussed general operation and maintenance (O&M) requirements for sustaining the integrity of a SIS. This second article discusses the requirements […]

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10 things to know about SIS operations

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How do you ensure a Safety Instrumented System in operation will maintain its original design integrity for a lifetime of 15+ years? The IEC 61511 (2016) safety life-cycle provides some brief guidance for operation and maintenance of a safety instrumented system (SIS) in clause 16. The stated objectives are to ensure that the validated system’s safety […]

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Process SIS standards are changing – learn more

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The process sector standard IEC 61511 is aimed at applications where instrumented systems are used for risk reduction in the process industry sector – including applications in chemicals, oil and gas, pulp and paper, pharmaceutical manufacturing, food and beverage, and non-nuclear power generation. Reduction of risk can be applied in the context of people, the […]

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5 reasons you should assess functional safety during operation

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Hazardous process industry sites must carry out periodic functional safety assessment (FSA) of safety instrumented systems. But why? Many hazardous process industry sites have viewed Functional Safety Assessment (FSA) as a project activity to be completed when a new safety instrumented system (SIS) gets installed, and of course, that is absolutely correct. Some have also registered […]

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