ASHRAE Guideline 29 2019

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ASHRAE Guideline 29-2019 — Guideline for the Risk Management of Public Health and Safety in Buildings

Published By	Publication Date	Number of Pages
ASHRAE	2019	40

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Category: ASHRAE

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Description

The purpose of this guideline is to provide guidance for the practical evaluation, design, and implementation of measures to reduce multiple risks in new and existing buildings. This guideline contains qualitative and quantitative methods for management of the risk of extraordinary incidents in buildings. Specific subject areas of concern include air, food, and water. The extraordinary events addressed in this guideline include fire, seismic events, chemical and biological releases, blast, and other extraordinary hazards. The guideline will address extraordinary incidents from a multi hazard perspective and will cover both intentional and accidental occurrences. The guideline addresses aspects of building performance that affect occupant health and safety, including egress; chemical, biological, and radiological (CBR) protection; fire protection; smoke removal or purging; filtration; air quality; entrance paths for contaminants; and building envelopes.

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PDF Pages	PDF Title
1	ASHRAE Guideline 29-2019
3	CONTENTS
4	FOREWORD 1. PURPOSE 2. SCOPE 3. DEFINITIONS 4. RISK MANAGEMENT APPROACH 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…
5	Figure 1 Risk management framework 4. 4.2 Risk Assessment. Risk assessment is a multitask process:
6	Table 1 Examples of Threats
7	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 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
8	5.3 Utility Systems
9	5.4 Building Planning and Design
11	Table 2 Glazing Protection Levels Based on Fragment Impact Locations
15	Table 3 Comparison of MERV Data, Filter Type, and Prior Designations
16	Table 4 Comparison of Types of Carbon Filters
21	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…
22	6. OPERATION AND MAINTENANCE OF BUILDINGS 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
23	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 …
24	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… 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 …
25	Table 5 General Filter Selection Considerations
26	Table 6 Protective Action Guides for Radiological Dispersion Device Incidents 33 7. REFERENCES
28	INFORMATIVE APPENDIX A: RISK MANAGEMENT EXAMPLE A1. INTRODUCTION A2. ASSESSING THE RISK 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…
29	Figure A-1 The exposure level matrix. Figure A-2 Sample exposure level matrix.
30	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… Figure A-3 Sample exposure level matrix for small office building.
31	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 Table A-1 Sample Probability of Successful Occurrence Source: Willhite and Norton (2002b)
32	A7. IDENTIFYING THE BUILDING’S VULNERABILITIES A8. DETERMINING THE LIFE-CYCLE COST ANALYSIS Table A-2 Risk Categories Source: Willhite and Norton (2002b)
33	Table A-3 Sample Risk Rating Chart: A Comparison of Probability and Impact Table A-4 Sample Risk Mitigation Plan
34	INFORMATIVE APPENDIX B: BIBLIOGRAPHY
37	INFORMATIVE APPENDIX C: REFERENCE INFORMATION C1. DEVELOP AND EVALUATE INTERVENTION C2. PROGRESSIVE COLLAPSE C3. FIRE ALARM AND DETECTION SYSTEMS C4. BUILDING OCCUPANCY TYPES—OFFICES C5. REFERENCES

Additional information

Standard Title	ASHRAE Guideline 29-2019 — Guideline for the Risk Management of Public Health and Safety in Buildings
Published Code	ASHRAE
Publication Date	2019
Pages Count	40

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