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ASHRAE Guideline 29-2019 -- Guideline for the Risk Management of Public Health and Safety in Buildings, 2019
- ASHRAE Guideline 29-2019 [Go to Page]
- CONTENTS
- FOREWORD
- 1. PURPOSE
- 2. SCOPE
- 3. DEFINITIONS
- 4. RISK MANAGEMENT APPROACH [Go to Page]
- Figure 1 Risk management framework 4.
- 4.1 General Approach. Risk management is a systematic approach to the discovery and management of risks facing an organization or facility. It includes the identification of sources of threat and the characterization of the likelihood of the occurren...
- 4.2 Risk Assessment. Risk assessment is a multitask process:
- Table 1 Examples of Threats
- 4.3 Risk Management Plan Implementation. The information from the risk assessment (Section 4.2) can be used to develop an implementation plan. The selected set of interventions should then be installed and commissioned.
- 4.4 Re-Evaluating the Plan after Implementation. The plan should be reviewed periodically to ensure its effectiveness. If a plan is not meeting its objectives, either the plan or the objectives should be modified. One sign of a successful plan is its...
- 5. DESIGN FOR NEW AND EXISTING FACILITIES [Go to Page]
- 5.1 General Concepts. The concepts in this section should be considered for protection of the occupants of the facilities and site from extraordinary incidents in addition to requirements in local codes, industry standards, and ordinances, and good p...
- 5.2 Site Planning and Design
- 5.3 Utility Systems
- 5.4 Building Planning and Design
- Table 2 Glazing Protection Levels Based on Fragment Impact Locations
- Table 3 Comparison of MERV Data, Filter Type, and Prior Designations
- Table 4 Comparison of Types of Carbon Filters
- 5.5 Building Occupancy Types. This guideline addresses only some of the more common types of occupancy found in buildings. Specialized safety and security needs for other occupancies or building types are beyond the scope of this document and are oft...
- 6. OPERATION AND MAINTENANCE OF BUILDINGS [Go to Page]
- 6.1 Commissioning. Commissioning and recommissioning, as described in ASHRAE Guideline 1.1, HVAC&R Technical Requirements for the Commissioning Process 28 and in ASHRAE Guideline 0, The Commissioning Process 29, should be an integral part of the risk...
- 6.2 Documentation. Complete documentation of the building systems, their design, their operations and maintenance (O&M) procedures, and commissioning documentation should be available and accessible on site. ASHARE Standard 62.1 2 contains requiremen...
- 6.3 Public Address System. A public address or similar mass notification system should be installed and kept in operating condition in accordance with NFPA 72, National Fire Alarm Code®31.
- 6.4 Site and Building Security
- 6.5 Plan for Normal Operations. An operations plan should be developed in simple and readily understandable format and distributed to responsible personnel. This plan should detail the operation of the facility, including the intended performance of ...
- 6.6 Plans for Emergency Operations. An emergency plan detailing the coordinated actions of building and maintenance personnel should be developed. This plan shall describe the respective actions to be taken by each person during an emergency. The pla...
- Table 5 General Filter Selection Considerations
- 6.7 Personnel Protection. Some facilities need personnel protection masks and/or clothing. For serious risk and higher, additional sets of these items should be stored in areas of refuge, etc., as described in Section 5.4.4.12. These items should be ...
- Table 6 Protective Action Guides for Radiological Dispersion Device Incidents 33
- 7. REFERENCES
- INFORMATIVE APPENDIX A: RISK MANAGEMENT EXAMPLE [Go to Page]
- A1. INTRODUCTION
- A2. ASSESSING THE RISK [Go to Page]
- A2.1 Identify the Decision Maker. The decision maker is responsible for the risk exposure of the facility, employees, software, and equipment. This requires setting the limits of possible harm, determining the parameters for how risk is measured, and...
- A2.2 Conduct a Threat Assessment. Review the site and list the possible threats to which the site may be exposed. Possible threats may include, but are not limited to the following:
- A2.3 Conduct a Vulnerability Assessment. Identify the building’s vulnerability to the threats. For example, the threat could be “chemical attack.” Vulnerabilities are specific to the facility: method of mail delivery, broken window, piping syst...
- A2.4 Assign a Risk Category. The risk categories, levels, and weighing factors are determined in consultation with building owners, occupants, operators, and risk consultants. Each owner, occupant, and operator has unique criteria for evaluating risk...
- A2.5 Establish Criteria. Criteria must be established to measure the success or failure of an intervention scheme. The decision maker decides those criteria that are applicable to the facility. If, for example, the decision maker determines that the ...
- A2.6 Calculate the Load Imposed by the Threat. For the threat being considered here, the design professional determines the load using standard load classification procedures. From this load, the designer determines the size and the capacity needed t...
- A2.7 Develop and Evaluate Intervention Schemes. The designer develops and evaluates alternative intervention schemes that can meet the criteria. Using the example from Section A2.6, the designer considers using an ice or water thermal storage system ...
- A2.8 Determine if the Criteria Are Met. The designer verifies that each of the systems meets the criteria. If an intervention scheme does not meet the criteria, it is dropped from consideration.
- A2.9 Select an Intervention Scheme to Use. The decision maker reviews the various intervention schemes and selects those that provide an optimum solution to the facility with consideration to the following:
- A2.10 Run the Assessment Using Multiple Threats. The final task is to assess how the facility performs during multiple threats. This task is informal and used to gain an idea how the system is stressed when multiple threats are considered. To make th...
- A3. IDENTIFYING THE RISK
- A4. ESTIMATING THE PROBABILITY OF RISK OCCURRENCE
- A5. ASSESSING THE VALUE OF LOSS FOR RISK ASSESSMENT
- A6. RANKING THE RISKS
- A7. IDENTIFYING THE BUILDING’S VULNERABILITIES
- A8. DETERMINING THE LIFE-CYCLE COST ANALYSIS
- Figure A-1 The exposure level matrix.
- Figure A-2 Sample exposure level matrix.
- Figure A-3 Sample exposure level matrix for small office building.
- Table A-1 Sample Probability of Successful Occurrence Source: Willhite and Norton (2002b)
- Table A-2 Risk Categories Source: Willhite and Norton (2002b)
- Table A-3 Sample Risk Rating Chart: A Comparison of Probability and Impact
- Table A-4 Sample Risk Mitigation Plan
- INFORMATIVE APPENDIX B: BIBLIOGRAPHY
- INFORMATIVE APPENDIX C: REFERENCE INFORMATION [Go to Page]
- C1. DEVELOP AND EVALUATE INTERVENTION
- C2. PROGRESSIVE COLLAPSE
- C3. FIRE ALARM AND DETECTION SYSTEMS
- C4. BUILDING OCCUPANCY TYPES—OFFICES
- C5. REFERENCES [Go to Page]
