A newly revised technical report has been completed by the ISA84 standards committee, Instrumented Systems to Achieve Functional Safety in the Process Industries. ISA-TR84.00.07, Guidance on the Evaluation of Fire, Combustible Gas, and Toxic Gas System Effectiveness, is intended to help address detection and mitigation of fire, combustible gas, and toxic gas hazards in process areas. Fire detection and mitigation within nonprocess areas are outside the scope of the document.
Fire and gas systems per this technical report are a subset of industrial automation and control systems that are used in the process industries to detect loss of containment of hazardous materials from a process and initiate a response to mitigate the release impact. Loss of containment can be a small leak or a catastrophic release. It can be detected by measuring the presence of the released materials or inferred from the effects of the release.
For information about on viewing or obtaining this or any of the ISA84 standards and technical reports, visit www.isa.org/findstandards.
We want to hear from you! Please send us your comments and questions about this topic to InTechmagazine@isa.org.