In San Antonio, Emerson Exchange 2010 featured a new Meet the Experts concept that provides participants to interact with recognized experts on focused topics. Emerson’s Mike Boudreaux provided a 2 hour session on Safety Lifecycle Management. This was an interactive short seminar that has been designed to help business leaders and managers in the process industries have a general understanding of existing industry standards and best practices for safety instrumented systems. This seminar provides a practical overview of the safety lifecycle, including key considerations for each phase. In addition to the typical design concepts related to safety instrumented functions and safety integrity levels, important concepts such as organizational design, competency management, planning, and continuous verification will be discussed.
Part 4 describes the Analysis Phase and explains the managment considerations for hazard and risk assessment, layers of protection analysis, and safety requirements specification.
Government mandates for tolerable risk levels<br />10-2<br />10-3<br />10-4<br />10-5<br />10-6<br />10-7<br />10-8<br />10-9<br />Australia (NSW) -<br />Hong Kong -<br />Netherlands -<br />United Kingdom -<br />The United States does not set tolerable risk levels, or offer guidelines.<br />
Chemical industry benchmarks for tolerable risk<br />10-2<br />10-3<br />10-4<br />10-5<br />10-6<br />10-7<br />10-8<br />10-9<br />Company I -<br />Company II -<br />Company III -<br />Small companies -<br />Large, multinational chemical companies tend to set levels consistent with international mandates<br />Smaller companies tend to operate in wider ranges and implicitly, at higher levels of risk<br />