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Certification plays a valuable role in industrial fire and gas detection. Normative standards establish minimum requirements for the design, fabrication, and performance of these safety devices as necessary to maintain protection of personnel and property. As described earlier in this series, one particular set of standards that has gained wider acceptance among plant safety professionals is ISA 84.01, enacted to drive the classification of Safety Instrumented Systems (SIS) for the process industry within the United States, as well as norms introduced by the International Electrotechnical Commission (IEC), IEC 61508 and IEC 61511. Together, these standards have introduced several specifications that address safety and reliability based on optimizing processes for risk.

General Monitors has now received certification to IEC 61508 Parts 1, 2, and 3 from FM Approvals for its core fire and gas detectors. A new White Paper explains the process. Recognized by a global certification agency, these instruments are suitable for use in applications to safety integrity levels (SIL) ranging from 1 to 3. The company certified these instruments in response to increased demand for IEC 61508-compliant products and to the growing interest for third-party approvals. The result is one of the most extensive product lines of SIL suitable devices offered in the industry.