Unwin Company personnel are active contributors to the literature of state-of-the-art technical and management techniques in process safety management and risk/reliability analysis. Here is a sample of our contributions: Available online   Guidelines for Asset Integrity Management, AIChE Center for Chemical Process Safety, New York, 2017. Lead contract author: Robert W. Johnson.    book  ebook Guidelines for Enabling Conditions and Conditional Modifiers in Layer of Protection Analysis, AIChE Center for Chemical Process Safety, New York, 2013. Lead contract author: Robert W. Johnson.    book  ebook Interfacing HAZOP Studies with SIL Determinations using Exponential Frequency and Severity Categories, ISA Safety Symposium April 24, 2008, Calgary, Alberta. Author: Robert W. Johnson, Unwin Company.   paper (102 kb) Guidelines for Hazard Evaluation Procedures, 3rd Edition, AIChE Center for Chemical Process Safety, New York, 2008. Lead contract authors: Robert W. Johnson and John F. Murphy, with Steven W. Rudy, Bryan T. Haywood, and John E. Corn.    book  ebook Essential Practices for Managing Chemical Reactivity Hazards, AIChE Center for Chemical Process Safety (New York), 2003. Authors: R. W. Johnson, S. W. Rudy and S. D. Unwin.    book  book Selective Catalytic Reduction (SCR) System Design and Operations: Quantitative Risk Analysis of Options. Paper at the Center for Chemical Process Safety 17th Annual International Conference: Risk, Reliability & Security, 2002. Authors: S. D. Unwin, R. W. Johnson, S. W. Rudy, J. E. Delargey and W. Rogers.   paper (128 kb) Guidelines for Safe Storage and Handling of Reactive Materials, Center for Chemical Process Safety, 1995. Lead contract authors: R. W. Johnson, S. W. Rudy.    book  book Guidelines for Vapor Release Mitigation, New York: American Institute of Chemical Engineers-Center for Chemical Process Safety, 1988. Authors: R. W. Prugh and R. W. Johnson.    book  book Other publications   Combustion Safeguards Test Intervals - Risk Study and Industry Survey. Presentation at the 2001 AIChE Loss Prevention Symposium. Authors: J. Kauffman, T. L. Oakey, K. Price and R. W. Johnson.   Risk Management by Risk Magnitudes, Chemical Health & Safety, Vol. 5, No. 5, September/October 1998. Author: R. W. Johnson.   Inherent Safety: How to Measure It and Why We Need It, Proced. Intl. Conf. and Workshop on Process Safety Management and Inherently Safer Processes, Orlando Florida, October 1996. Authors: R. W. Johnson, S. D. Unwin, and T. I. McSweeney.     Trade-Offs in Safety, Environmental, and Business Risks in Decision-Making, AIChE Center for Chemical Process Safety International Conference and Workshop on Process Safety Management and Inherently Safer Processes, October 1996. Authors: S. D. Unwin, S. W. Rudy and W. W. Simmons.     Ranking Industrial Risks: Decision Support Tools for Risk Management in The Risk Management of Chemicals, ed. by M. L. Richardson, The Royal Society of Chemistry, Cambridge, UK, 1992. Presented at the International Conference on Risk Management of Chemicals, University of Surrey, Guildford, UK, July 1992. Author: R. W. Johnson.     Optimizing Business Risk Decisions by Order-of-Magnitude Economic Risk Analysis, 9th Intl. Symp., Loss Prev. and Safety Promotion in the Proc. Industries, Barcelona, Spain, May 1998. Author: R. W. Johnson.     Resource Optimization by Risk Mapping, Proced. Intl. Conf. and Workshop on Risk Analysis in Process Safety, New York: American Institute of Chemical Engineers-Center for Chemical Process Safety, 1997. Authors: R. W. Johnson, T. I. McSweeney, and J. S. Yokum.     Analyze Hazards, Not Just Risks, Chemical Engineering Progress, July 2000. Author: R. W. Johnson.     Fault Tree Faults, International Conference on Hazard Identification and Risk Analysis, Human Factors and Human Reliability in Process Safety, New York: American Institute of Chemical Engineers-Center for Chemical Process Safety, 1992. Authors: R. W. Johnson and L. A. Minton.     Integrated Safety Analysis Project, Proced. Intl. Conf. and Workshop on Risk Analysis in Process Safety, New York: American Institute of Chemical Engineers-Center for Chemical Process Safety, 1997. Authors: R. W. Johnson and M. Elliott.     Guidelines for Vapor Release Mitigation, 6th International Symposium on Loss Prevention and Safety Promotion in the Process Industries, Oslo, Norway, June 1989. Authors: R. W. Johnson, R. W. Prugh, S. J. Schechter, G. A. Viera, and E. J. Bassler.     Assessing Frequency, Size, and Duration of Toxic Vapor Releases, Toxic Release and Control Seminar, Chemical Manufacturers Association, November 1986; Air Pollution Control Association, New York, June 1987. Author: R. W. Johnson.     Toxic Release Scenarios for Emergency Response Plans, Air Pollution Control Association, Minneapolis, Minnesota, June 1986. Author: R. W. Johnson.     Quantitative Risk Analysis of Proposed Design Changes for a Marathon Gas Plant, 28th Loss Prevention Symposium, American Institute of Chemical Engineers, April 1994. Authors: B. Tylock, R. W. Johnson, T. Breninger, and S. W. Rudy.

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