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Q&A with Hal Thomas on ISA website


  June 19, 2018

Hal Thomas, CFSE, serves as a Senior Safety Engineer at exida, a global leader in automation system safety, alarm management, cybersecurity, and availability.

With more than 36 years of professional experience, Thomas is widely recognized as an expert in functional process safety analysis, including safety instrumented systems and high availability automation systems. He helped pioneer the use of HAZOP, fault tree analysis, consequence analysis, LOPA, and the introduction of the SIS work process while at Air Products and Chemicals.

His principal work responsibilities have included: assisting and mentoring process safety and process control engineers in hazard identification, the use of fault tree analysis, LOPA, SIL assessment, and SIL verification; leading new technology hazard reviews; and writing standards and procedures to promote high quality and consistent results.

Thomas has served on a number of Center for Chemical Process Safety (CCPS) committees that have written guideline books, and is an original member of the CCPS Process Equipment Reliability Database initiative. He is a member of the CFSE Governing Board and is a Senior Member of ISA. He has authored numerous published papers.

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