Guidelines for Evaluating Process Plant Buildings for External Explosions, Fires, and Toxic Releases (PDF)

1. Introduction 1 1.1 Objective 4 1.2 Building Siting Evaluation Process 5 1.3 Selection of Approach 6 1.4 Background 6 1.5 Phillips, Pasadena, Texas USA: Propylene HDPE Unit VCE ad BLEVEs 10 1.6 Evolution of Design and Siting Practices for Buildings in Process Plants 18 1.7 Organization of the Book 20 2. Management Overview 21 2.1 Process Overview 21 2.2 Management Responsibilities under API RP-752 and API RP-753 27 3. Determining the Scope of the Building Siting Evaluation 31 3.1 Introduction 31 3.2 Buildings Considered 31 3.3 Scenario Selection 36 4. Building Siting Evaluation Criteria 45 4.1 Introduction 45 4.2 Occupant Vulnerability 46 4.3 Criteria for Existing Buildings Exposed to Explosion Hazards 48 4.4 Criteria for Fires 58 4.5 Criteria for Toxic Exposures 62 4.6 Criteria for Building Upgrades and New Buildings 64 4.7 Risk Criteria 65 5. Explosion Hazards 71 5.1 Introduction 71 5.2 Select Explosion Approach 72 5.3 Modeling and Quantifying and Explosion Hazards 74 5.4 Building Response to Explosion Hazards 78 5.5 Occupant VULNERABILITY to Explosion Hazards 90 5.6 Actions Required at the Completion of the Evaluation 90 6. Fire Hazards Assessment 93 6.1 Introduction 93 6.2 Determining if a Fire Hazard Exists 97 6.3 Spacing Table Approach 97 6.4 Performing a Consequence-Based or Risk-Based building siting evaluation for Fire 99 6.5 Occupant Response to Fire Hazards 105 6.6 Defining the Fire Protection Concept 106 7. Toxic Hazards Assessment 109 7.1 Introduction 109 7.2 Determining if a Toxic Hazard Exists 109 7.3 Building siting evaluation for toxics 111 7.4 Defining the Toxic Protection Concept 120 7.5 Evacuation vs. Sheltering-In-Place 120 8. Frequency and Probability Assessment 125 8.1 Introduction 125 8.2 Developing a Scenario List 127 8.3 Calculation of Frequency of Initiating Event or accident 129 8.4 Probability and Frequency of Final Outcomes 144 8.5 Unit-Based Outcome Frequencies 149 9. Risk Assessment 151 9.1 Introduction 151 9.2 Risk Measure Types

Since 1985, the Center for Chemical Process Safety (CCPS) has been the world leader in developing and disseminating information on process safety management and technology. CCPS, an industry technology alliance of the American Institute of Chemical Engineers (AIChE), has published over 80 books in its process safety guidelines and process safety concepts series, and over 100 training modules through its Safety in Chemical Engineering Education (SACHE) series.

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