Inspecting process equipment based on probability-of-failure rankings
- Hendrix Group, Inc., Houston, TX (United States)
A qualitative, risk-based method for ranking fixed equipment, based on probability of internal failure, is described. The ranking procedure is used to prioritize process equipment inspection programs with limited budgets and personnel resources, and as a tool to meet the mechanical integrity requirements of the OSHA 1910.119 Process Safety Management Standard. The paper describes current industry activities concerning risk-based inspection, and describes a procedure for ranking equipment using process corrosivity, corrosion rate half life, mean time between failure, environmental cracking, and previous inspection results as independent variables in the ranking process. The results can be combined with a hazard analysis to provide an overall qualitative risk-based equipment ranking. The described procedure incorporates existing industry code and standard inspection requirements.
- OSTI ID:
- 489070
- Report Number(s):
- CONF-970146--; ISBN 1-890277-04-5
- Country of Publication:
- United States
- Language:
- English
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