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John Reiner

Director of Metrology & Measurement Assurance

John Reiner
Mr. Reiner joined the CEESI staff in 1990 after earning his Bachelor of Science degree in Electronic Engineering. Hired as a Flow Measurement Technician/Instrumentation Specialist, John has operated and supported all of CEESI’s primary and secondary flow test areas. John has managed the Metrology Department since 1995 maintaining the calibration process of primary standards, transfer standard, and instrumentation which assures CEESI’s traceability to the National Institute of Technology (NIST). He develops and maintains Statistical Process Control (SPC) charts on the instrumentation used in the daily flow calibrations. John also manages the Measurement Assurance Department developing and maintaining quality documents and procedures for the Colorado, Berthoud, and Iowa facilities. He has developed CEESI’s Quality Program to meet national and international standards which met the goal of third party accreditation in 2004 by the National Voluntary Laboratory Accreditation Program (NVLAP). John was involved with the development, construction, and operation of the High Pressure Liquid Flow Lab. He designed and wired the safety circuitry and instrument control panels for the CEESI Iowa facility. And most recently, the design and wiring of the instrumentation and data acquisition systems for the Liquid Hydrocarbon Test Facility. With over 25 years of experience with instrumentation, both liquid and gas flow calibrations, he provides technical support to CEESI’s customers and all of CEESI’s test facilities. In 2016, John was promoted from Manager to Director of Metrology and Measurement Assurance. He oversees the calibration and traceability of CEESI’s Standards and the CEESI Quality Program.


Professional Societies


American Society for Quality


Education/Professional Development


B.S. Electronic Engineering, 1990, DeVry Institute of Technology
ISO Auditor Training
Numerous flow meter and instrument specific training courses



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