Risk-Based Hazardous Release Protection and Prevention by Inspection and Maintenance

[+] Author and Article Information
Samuel J. Brown

Quest Engineering Development Corporation, Intertech Services, Inc., 7500 Old North Belt Drive, Humble, TX 77396

Iain Le May

Metallurgical Consulting Services, Ltd., Intertech Services, Inc., Saskatoon, Saskatchewan, Canada S7K 5Y2

J. Pressure Vessel Technol 122(3), 362-367 (Apr 13, 2000) (6 pages) doi:10.1115/1.556193 History: Received March 01, 2000; Revised April 13, 2000
Copyright © 2000 by ASME
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Brown, S., ed., 1995, Forensic Engineering—Part I: The Investigation, Analysis, Reconstruction, Causality, Prevention, Risk, and Consequence of the Failure of Engineered Products, ISI Publications, Inc., Humble, TX.
Brown, S. J., 1976, “Pressure Vessel Failure,” Pressure Vessels and Piping: Design and Analysis, Quality Assurance, Applications, Components, ASME PVP-Vol. 4, Ch. 5.
Brown, S. J., co-ed., 1977, Failure Data and Failure Analysis, ASME Symposium Pub. Book No. PVP-PB-023.
Brown,  S. J. and Brown,  T. J., 1995, “Hazardous Release Protection: Code and Standard Considerations for Pressure Systems,” Proc. Safety Prog., 14, No. 4.
Brown, S. J., 1994, “An Overview of the Proposed ASME Code BPTC/HPSC SC6000 Hazardous Release Protection,” South Texas Section AIChE, Process Safety Symposium, Vol. 1, Feb.–Mar., presented at OSHA National Training Center, 1993.
Brown, S. J., Sundararajan, C., and Short, W. E., 1994, “Pipe Risk Analysis—A Case Study,” American Society of Mechanical Engineers Pressure Vessel and Piping Division Conference, ASME PVP-Vol. 285, Minneapolis, MN.
Brown, S. J., Brown, T. J., Sundararajan, C., and Photo, H., 1996, “Breach-Lock Closure Failure: Case History of Design and Hazards Consideration,” Chapter on Hazardous Release Protection, ASME PVP-Vol. 333, Integrity of Structure and Fluid Systems, H. H. Chung, ed.
American Society of Mechanical Engineers Code Committee SC6000, 2000, Hazardous Release Protection, ASME, New York, NY; tentative original draft 1981.
Sundararajan, C., 1977, “Risk Based Inspection of Pressure Components in Power and Process Plants,” ASME J. Pressure Vessel Technol., 119 , May.
Brown, S. J., 1992, “Brittle Fracture of a Cast Iron Valve in Oleum and Sulfuric Acid Service,” ASM Metals Handbook of Case Histories in Failure Analysis.
Furtado, H. C., Collins, J. C., and Le May, I., 1997, “Extending the Reliable Operation of Aging Power Stations Through Analysis of Failed Components,” Aging of Materials and Methods for the Assessment of Lifetimes in Engineering Plant—CAPE 97, ed. R. K. Penny, Balkema, Rotterdam, pp. 147–155.
Furtado, H. C., and Le May, I., 1996, “Damage Evaluation and Life Assessment in High Temperature Plant: Some Case Studies,” IMechE Conf. Trans., Sixth International Conference on Creep and Fatigue, pp. 491–499.


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Flow chart of SC6000 use for pressure systems risk analysis
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(a) Relative risk of pressure systems components if death is a consequence of component failure; (b) ranking for risk-based inspection and maintenance of different equipment
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Flow chart for implementing a facility risk-based inspection program
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Brittle fracture of cast-iron pipe fitting in Oleum (SO3 and H2SO4) service that led to spill and vapor cloud release
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(a) Opened bifurcated crack at the fracture surface shown in Fig. 4; (b) SEM of specimen from fitting in Fig. 4 showing corrosion along the graphite flake and iron matrix leading to through-wall crack propagation
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Finite element method computer simulation of von Mises stress at the flange-to-body juncture of the failed cast-iron fitting



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