ISA84, Instrumented Systems to Achieve Functional Safety in the Process Industries, has approved the newest edition of IEC 61511 as ISA and American National Standards. The new standards will be designated as ANSI/ISA-61511, Functional Safety – Safety Instrumented Systems for the Process Industry Sector, Parts 1-3. The standards set forth requirements for the specification, design, installation, operation and maintenance of a safety instrumented system (SIS) so that it can be entrusted to achieve or maintain a safe state of a process.
ISA84 developed the original ISA-84.01 standard on which the first edition of IEC 61511 was based. This new edition of IEC 61511, developed under IEC SC65A / MT 61511 with input from ISA84, was approved by ISA84 without modification. For future editions of IEC 61511, ISA84 and IEC have announced they will seek closer, more direct collaboration through formation of an official liaison.
The next meeting of ISA84 will be held 5-7 November 2018 at Wood in Houston, Texas. This will follow ISA's PCS 2018-Process Industry Event (formerly known as the Process Control and Safety Symposium and Exhibition), also in Houston, 30 October - 1 November. Experts from any country are welcome to join the ISA84 committee by contacting firstname.lastname@example.org.
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