BC services are focused on providing robust and accurate results to decision-makers and/or Authorities responsible to Manage Process Safety (PS). BC classifies the PS field into four main categories:
(1) System/Process Characterization
(2) PS Analysis
(3) PS Assessment
(4) PS Measures
System/Process Characterization, task which requires the characterization of the system/process, both "inside" and "outside" the process equipment:
(1) "Inside" the process equipment; e.g., thermodynamic behavior of hazardous materials processed, fluid flow dynamics based on process conditions and/or potential process deviations.
(2) "Outside" the process equipment; e.g., characterization of the system/process geometry with the environment and weather conditions with the aim to capture fluid-geometry interaction
PS Analysis, defined as an engineering evaluation and mathematical/computational techniques for combining estimates of incident consequences and/or frequencies.
PS Assessment, phase which requires the following tasks to be completed:
(1) Systematization of knowledge and uncertainties about phenomena, processes, and activities in the process industry.
(2) Description and discussion of the results of the analysis to provide a basis for evaluating what is tolerable and acceptable.
(3) Comparison and optimization of different design options and Layers Of Protection (LOP) - PS Measures.
PS Measures, which refers to a coordinated set of activities and methods intended to identify, evaluate, and prioritize results, followed by coordinated and economical application of resources to minimize, monitor, and control the frequency of occurrence or impacts of undesired events.