Using operating and safety limits to create safety procedures

Abstract

AbstractIn this paper, the criteria for the development, implementation, and control of operating and safety limits of parameters like pressure, temperature, level, composition, etc., are described. Operating and safety limits are required by Elements 2 “process safety information” and 4 “operating procedures” of the information package for OSHA Process Safety Management (PSM). A brief description is also given of how these limits should be established and the information, with respect to consequences, safeguards, and corrective actions, that should be obtained during a detailed analysis of deviation from an operation or process parameter. This paper looks for an easier method of developing operating and safety limits within chemical and petrochemical plants to prevent and control undesirable events (human losses, material losses, economic losses, or environmental pollution) through adequate emergency plans and response programs.