Hal Thomas

Background

About Hal Thomas

Over 40 years of professional experience. Widely recognized as an expert in process safety analysis, including safety instrumented systems and high availability automation systems as well as cybersecurity. He helped pioneer the use of HAZOP, fault tree analysis, consequence analysis, LOPA, and SIS safety lifecycle. Formerly an Engineering Associate – Process Safety and Technology Manager for Safety Instrumented Systems at Air Products and Chemicals, Inc. Principle work responsibilities included assisting and mentoring process safety and process control engineers in hazard identification, the use of fault tree analysis, LOPA, SIL assessment, SIL verification, leading new technology hazard reviews, as well as to write standards and procedures to promote high quality and consistent results. Helped institute a managed system of standardized consequence analysis procedures and managed the development of a number of in house tools and models to support both likelihood and consequence analysis. In addition, was responsible for developing the overall process safety curricula, developing a number of training modules and courses, and providing instruction for courses such as SIL Assessment, SIL Verification, and Fault Tree Analysis. Has served on a number of CCPS committees that have written guideline books, and is an original member of the CCPS Process Equipment Reliability Database initiative, currently serving as their technical consultant. Continues ot be a member of the CFSE Governing Board and is a senior member of ISA. Currently a member of the S84 committee and chairs TR84.09.00 regarding cyber security for the SIS. Has authored numerous published papers. Specialties: HAZOP Layer of Protection Analysis Fault Tree Analysis Consequence Analysis Cyber Security Risk Assessment Safety Instrumented System Design Safety Instrumented Design Standards Mechanical Integrity of Safety Instrumented Systems Process Safety and SIS Engineering Training