职业安全管理与工程（第5版·影印版） (2009 年度畅销榜NO.29438 )

这是一本职业安全管理与工程方面的经典教材，在相关课程中被广泛采用。自1976年第1版问世以来，根据学科的最新发展进行了多次修订，陆续出版了新的版本，至今为第5版。该书的内容非常全面，包括安全法规、安全管理、危险分析与控制、事故调查、安全分析以及各种类型的职业安全和危险的管理与控制(如加速、跌落、落物、碰撞、机械伤害、肌肉骨骼失调、热与温度、压力、电气、火灾、爆炸、有毒物质、限制空间入口、放射、振动与噪声、计算机使用等)。\r\n\r\n 该书的第5版中反映了本领域的一些最新发展，如软件安全分析、计算机使用中重复动作导致的职业病、限制空间入口的安全问题、基于行为的安全、核废料等。\r\n\r\n 该书可以作为职业安全、安全生产等相关学科的教材和参考书。\r\n
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PREFACE xv \r\n\r\n CHAPTER 1 ACCIDENT LOSSES \r\n\r\n Costs of Well-Being 1 \r\n\r\n The Industrial Revolution and Accidents 2 \r\n\r\n Increasing Hazards 3 \r\n\r\n Physical Effects of Accidents 4 \r\n\r\n Numbers of Accidents vs. Costs 6 \r\n\r\n Lessening Safety Costs 9 \r\n\r\n Accident Losses for Personnel vs. Equipment and Facilities Increasing Magnitude of Accident Losses 11 \r\n\r\n Awards for Injuries 12 \r\n\r\n Bibliography 13 \r\n\r\n Exercises 13 \r\n\r\n \r\n\r\n CHAPTER 2 LIABILITIES AND SAFETY LEGISLATION 15 \r\n\r\n Statute Law 15 \r\n\r\n Common Law 16 \r\n\r\n Misadventure (Accident) 17 \r\n\r\n Strict Liability 17 \r\n\r\n Industrial Revolution 19 \r\n\r\n Negligence 19 \r\n\r\n American Laws 22 \r\n\r\n Steam Engines, Boats, and Locomotives 22 \r\n\r\n The Fourteenth Amendment and Safety 23 \r\n\r\n Liability Laws 23 \r\n\r\n Workers' Compensation Laws 24 \r\n\r\n Later Actions 25 \r\n\r\n Resurgence of Strict Liability 25 \r\n\r\n Limited Liability 27 \r\n\r\n Excused Negligence 27 \r\n\r\n Bibliography 27 \r\n\r\n Exercises 28 \r\n\r\n \r\n\r\n CHAPTER 3 WORKERS' COMPENSATION 29 \r\n\r\n Obligations to Employees 29 \r\n\r\n Workers' Compensation Laws 30 \r\n\r\n Problems of Nonuniformity 32 \r\n\r\n Coverages 34 \r\n\r\n Workers' Compensation Insurance 34 \r\n\r\n Costs of Workers' Compensation Insurance 34 \r\n\r\n Insurance Rating Systems 37 \r\n\r\n Keeping Workers' Compensation Costs Down 37 \r\n\r\n Workers' Compensation Reform 39 \r\n\r\n Requirements for Benefits 40 \r\n\r\n Disagreements 40 \r\n\r\n Injury Resulting from an Accident 41 \r\n\r\n Injury Arising out of Employment 41 \r\n\r\n Types of Disabilities 43 \r\n\r\n Monetary Disability Benefits 44 \r\n\r\n Death Benefits 44 \r\n\r\n Extent of Medical Benefits 44 \r\n\r\n Injury and Claim Notices 45 \r\n\r\n Hearings 45 \r\n\r\n Action against a Third Party 46 \r\n\r\n Inadequacy of Workers' Compensation 49 \r\n\r\n Bibliography 50 \r\n\r\n Exercises 50 \r\n\r\n \r\n\r\n CHAPTER 4 OSHACT AND ITS ADMINISTRATION 52 \r\n\r\n New Concepts of Accident Avoidance 53 \r\n\r\n Enactment of the Occupational Safety and Health Act (OSHAct) 55 \r\n\r\n Other Organizations 55 \r\n\r\n State Industrial Safety Programs 56 \r\n\r\n Responsibilities of Employers and Employees 58 \r\n\r\n Inspections 58 \r\n\r\n Violations and Penalties 59 \r\n\r\n Standards 62 \r\n\r\n Record Keeping 62 \r\n\r\n Impact of OSHA 62 \r\n\r\n OSHA and Hazard Minimization 64 \r\n\r\n Antagonism toward OSHA 64 \r\n\r\n The New Millennium 67 \r\n\r\n The New OSHA 68 \r\n\r\n Exercises 72 \r\n\r\n \r\n\r\n CHAPTER 5 STANDARDS, CODES, AND OTHER SAFETY DOCUMENTS 73 \r\n\r\n Uses for Standards and Codes 74 \r\n\r\n Mandatory vs. Voluntary Standards 76 \r\n\r\n Objections to Consensus Standards 79 \r\n\r\n Test Standards 80 \r\n\r\n Differences in Standards 81 \r\n\r\n Changing Standards 83 \r\n\r\n Inadequacies of Standards 83 \r\n\r\n Standards and Analyses 84 \r\n\r\n Proliferation of Standards 84 \r\n\r\n Status of OSHA Standards 84 \r\n\r\n Bibliography 85 \r\n\r\n Exercises 86 \r\n\r\n \r\n\r\n CHAPTER 6 ENGINEERS AND SAFETY 87 \r\n\r\n Accomplishments of Engineers 87 \r\n\r\n Engineering and Accidents 88 \r\n\r\n Steam Equipment and Accidents 88 \r\n\r\n Technical Societies and Safety 89 \r\n\r\n Inadequacy of Engineering Schools 89 \r\n\r\n Engineers as Causers of Accidents 90 \r\n\r\n Registration of Engineers 91 \r\n\r\n Possible Improvements in Registration 95 \r\n\r\n Bibliography 97 \r\n\r\n Exercises 97 \r\n\r\n \r\n\r\n CHAPTER 7 MANAGEMENT AND ITS RESPONSIBILITIES 98 \r\n\r\n Safety Policies 98 \r\n\r\n OSHAct and Management 100 \r\n\r\n Actions against Managers 100 \r\n\r\n Management Attitudes toward Safety 102 \r\n\r\n Middle Managers 106 \r\n\r\n Foremen/Forewomen and Safety 106 \r\n\r\n Procedural Safeguards 107 \r\n\r\n Management and Supervision 108 \r\n\r\n Safety Efforts of Other Managers 110 \r\n\r\n Hazardous Operations 112 \r\n\r\n Personnel 113 \r\n\r\n Personal Protective Equipment 114 \r\n\r\n Checklist for Managers 115 \r\n\r\n Safety Information System 115 \r\n\r\n Bibliography 118 \r\n\r\n Exercises 119 \r\n\r\n \r\n\r\n CHAPTER 8 THE CHANGING ROLES OF SAFETY PERSONNEL 120 \r\n\r\n Safety Laws and Safety Engineers 121 \r\n\r\n Safety Personnel 122 \r\n\r\n 'Safety Man' 123 \r\n\r\n Safety Engineer 123 \r\n\r\n Production and Processing Losses 125 \r\n\r\n Growing Areas within Safety 125 \r\n\r\n Bibliography 126 \r\n\r\n Exercises 126 \r\n\r\n \r\n\r\n CHAPTER 9 PERSONNEL 127 \r\n\r\n Disabled Personnel in the Workplace 128 \r\n\r\n Older Personnel in the Workforce 130 \r\n\r\n Human Error 130 \r\n\r\n Designing and Planning Errors 131 \r\n\r\n Production Errors 132 \r\n\r\n Operations Errors 135 \r\n\r\n Two-Person Concept 136 \r\n\r\n Human vs. Machine 136 \r\n\r\n The Biochemical Machine 137 \r\n\r\n Motivation 138 \r\n\r\n Violence in the Workplace 139 \r\n\r\n Judgment 141 \r\n\r\n Accident-Prone Persons 142 \r\n\r\n Quantitative Error Prediction 144 \r\n\r\n Human Factors Engineering 145 \r\n\r\n Procedural Means of Accident Prevention 146 \r\n\r\n Critical Operations 146 \r\n\r\n Responsibilities of the Individual Worker 149 \r\n\r\n Procedure Analysis 151 \r\n\r\n Outputs of Procedure Analysis 155 \r\n\r\n Contingency Analysis 155 \r\n\r\n Bibliography 157 \r\n\r\n Exercises 157 \r\n\r\n \r\n\r\n CHAPTER 10 PROMOTING SAFE PRACTICES 159 \r\n\r\n The Behavior-Based Safety Approach 160 \r\n\r\n The Regulatory Approach: Safety Rules 162 \r\n\r\n Employee Participation 162 \r\n\r\n Critical Incident Technique 163 \r\n\r\n Other Methods 164 \r\n\r\n Suggestion Programs 164 \r\n\r\n Union Participation 165 \r\n\r\n Safety Training 165 \r\n\r\n In-depth Training 167 \r\n\r\n Maintaining Awareness 168 \r\n\r\n General Comments on Safety Committees 168 \r\n\r\n Safety Committee Duties 169 \r\n\r\n Bibliography 170 \r\n\r\n Exercises 170 \r\n\r\n \r\n\r\n CHAPTER 11 APPRAISING PLANT SAFETY 171 \r\n\r\n New Plants and Equipment Designs 172 \r\n\r\n Existing Plants and Equipment 172 \r\n\r\n Indicating Plant Hazards 173 \r\n\r\n Safety Inspections 174 \r\n\r\n Checklists 175 \r\n\r\n Quantitative Appraisals 176 \r\n\r\n Problems with Validity of Statistics 176 \r\n\r\n Problems with Quantitative Rates 178 \r\n\r\n Validity of Statistical Comparisons 179 \r\n\r\n Risk Assessments 180 \r\n\r\n Acceptance of Risk 184 \r\n\r\n Risk Communication 186 \r\n\r\n Bibliography 187 \r\n\r\n Exercises 187 \r\n\r\n \r\n\r\n CHAPTER 12 HAZARDS AND THEIR CONTROL 189 \r\n\r\n Determining Existence of Hazards 190 \r\n\r\n Eliminating and Controlling Hazards 192 \r\n\r\n Isolation, Lockouts, Lockins, and Interlocks 194 \r\n\r\n Failure Minimization 200 \r\n\r\n Safety Factors and Margins 200 \r\n\r\n Monitoring 203 \r\n\r\n Warning Means and Devices 206 \r\n\r\n Safe Procedures 207 \r\n\r\n Backout and Recovery 207 \r\n\r\n Damage Minimization and Containment 211 \r\n\r\n Physical Isolation 211 \r\n\r\n Weak Links 212 \r\n\r\n Escape, Survival, and Rescue 213 \r\n\r\n Bibliography 214 \r\n\r\n Exercises 214 \r\n\r\n \r\n\r\n CHAPTER 13 PLANNING FOR EMERGENCIES 215 \r\n\r\n Medical Responses in Emergencies 215 \r\n\r\n Bibliography 228 \r\n\r\n Exercises 228 \r\n\r\n \r\n\r\n CHAPTER 14 ACCIDENT INVESTIGATIONS 229 \r\n\r\n Investigating Board Chairman's Responsibilities 232 \r\n\r\n Contributing Personnel 232 \r\n\r\n Conducting the Investigation 234 \r\n\r\n Accident Reports 235 \r\n\r\n Corrective Actions 237 \r\n\r\n Insurance Claims 237 \r\n\r\n Other Aspects of Accident Investigations 239 \r\n\r\n Exercises 239 \r\n\r\n \r\n\r\n CHAPTER 15 SAFETY ANALYSIS 240 \r\n\r\n General 240 \r\n\r\n Preliminary Hazards Analysis 241 \r\n\r\n Failure Modes and Effects Analysis 245 \r\n\r\n Fault-Tree Analysis (FTA) 245 \r\n\r\n Fault Tree Symbols 246 \r\n\r\n Safety Analysis Methods Mandated for Process Safety Management 254 \r\n\r\n Bibliography 257 \r\n\r\n Exercises 258 \r\n\r\n \r\n\r\n CHAPTER 16 ACCELERATION, FALLS, FALLING OBJECTS, AND OTHER IMPACTS 259 \r\n\r\n Falls 259 \r\n\r\n Preventive Measures Against Falls 262 \r\n\r\n Impacting Objects 265 \r\n\r\n Other Acceleration Effects 267 \r\n\r\n Bibliography 270 \r\n\r\n Exercises 270 \r\n\r\n \r\n\r\n CHAPTER 17 MECHANICAL INJURIES 271 \r\n\r\n Cutting and Tearing 271 \r\n\r\n Shearing 272 \r\n\r\n Crushing 272 \r\n\r\n Breaking 273 \r\n\r\n Machine Guards and Safety Devices 273 \r\n\r\n Guards 274 \r\n\r\n Precautionary Measures 276 \r\n\r\n Exercises 277 \r\n\r\n \r\n\r\n CHAPTER 18 WORK-RELATED MUSCULOSKELETAL DISORDERS 279 \r\n\r\n Musculoskeletal Disorders (MSDs): Work Related or Not Work Related? 280 \r\n\r\n The Effects of WMSDs 281 \r\n\r\n Worker-related Factors Associated with MSDs 282 \r\n\r\n Carpal Tunnel Syndrome 283 \r\n\r\n Nonoccupational Factors of CTS 283 \r\n\r\n Low Back Pain 284 \r\n\r\n Back Belts 286 \r\n\r\n Ergonomics: A Program to Control WMSDs 287 \r\n\r\n Bibliography 290 \r\n\r\n Exercises 290 \r\n\r\n \r\n\r\n CHAPTER 19 HEAT AND TEMPERATURE 291 \r\n\r\n Effects on Personnel 291 \r\n\r\n Classification of Burn Severities 296 \r\n\r\n Burns to the Eye 297 \r\n\r\n Other Temperature Effects on Personnel 297 \r\n\r\n High Temperatures 298 \r\n\r\n Additional Effects 305 \r\n\r\n Bibliography 311 \r\n\r\n Exercises 311 \r\n\r\n \r\n\r\n CHAPTER 20 PRESSURE HAZARDS 312 \r\n\r\n Unfired Pressure Vessels 314 \r\n\r\n Discharges from Safety Valves 317 \r\n\r\n Dynamic Pressure Hazards 317 \r\n\r\n Water Hammer 319 \r\n\r\n Negative Pressure (Vacuums) 320 \r\n\r\n Testing of Pressure Systems 320 \r\n\r\n Leaks 321 \r\n\r\n Effects of Leakage 323 \r\n\r\n Leak Detection 324 \r\n\r\n Dysbarism and Decompression Sickness 324 \r\n\r\n Compressed-Gas Cylinders 328 \r\n\r\n Bibliography 336 \r\n\r\n Exercises 340 \r\n\r\n \r\n\r\n CHAPTER 21 ELECTRICAL HAZARDS 341 \r\n\r\n Shock 341 \r\n\r\n Other Factors 342 \r\n\r\n Causes of Shock 344 \r\n\r\n Electrical Insulation Failures 346 \r\n\r\n Equipment Failures 347 \r\n\r\n Other Shock Protection 349 \r\n\r\n Static Electricity 354 \r\n\r\n Lightning 359 \r\n\r\n Ignition of Combustible Materials 361 \r\n\r\n Containment of Discharges 361 \r\n\r\n Inherently Safe Devices 361 \r\n\r\n Heating and Overheating 365 \r\n\r\n Circuit and Equipment Protection 366 \r\n\r\n Unit Protection 367 \r\n\r\n Why an Open Circuit? 368 \r\n\r\n Exercises 374 \r\n\r\n \r\n\r\n CHAPTER 22 FIRES AND FIRE SUPPRESSION 375 \r\n\r\n Fuels 375 \r\n\r\n Oxidizers 378 \r\n\r\n Gases 379 \r\n\r\n Flammable and Combustible Liquids 379 \r\n\r\n Flammable Solids 386 \r\n\r\n Ignition 387 \r\n\r\n Ignition Sources 394 \r\n\r\n Ignition Delay 394 \r\n\r\n Effects of Fire on Personnel 396 \r\n\r\n Fire Detection Systems 399 \r\n\r\n Fire Classifications 400 \r\n\r\n Fire Suppression 401 \r\n\r\n Extinguishing Systems 408 \r\n\r\n Bibliography 419 \r\n\r\n Exercises 419 \r\n\r\n \r\n\r\n CHAPTER 23 EXPLOSIONS AND EXPLOSIVES 425 \r\n\r\n Industrial Usage and Problems 425 \r\n\r\n Materials That Will Explode 429 \r\n\r\n Explosive Effects 431 \r\n\r\n Preventing Explosion Damage 434 \r\n\r\n Bibliography 439 \r\n\r\n Exercises 439 \r\n\r\n \r\n\r\n CHAPTER 24 HAZARDS OF TOXIC MATERIALS 440 \r\n\r\n Toxic Materials 440 \r\n\r\n Routes to Injury Sites 441 \r\n\r\n Hypoxia 441 \r\n\r\n Hypoxic Hypoxia 445 \r\n\r\n Mechanisms of Toxic Agents 448 \r\n\r\n Measurement of Toxicity 458 \r\n\r\n Detection of Toxic Agents 461 \r\n\r\n Respiratory Protective Equipment 461 \r\n\r\n Bibliography 475 \r\n\r\n Exercises 476 \r\n\r\n \r\n\r\n CHAPTER 25 ENVIRONMENTS 477 \r\n\r\n OSHA and EPA 477 \r\n\r\n Types of Environments 480 \r\n\r\n Natural and Induced Environments 480 \r\n\r\n Controlled Environments 484 \r\n\r\n Closed or Free Environments 484 \r\n\r\n Hazards of the Environment 486 \r\n\r\n Detecting Adverse Environments 486 \r\n\r\n Protection against the Environment 489 \r\n\r\n Industrial Ecology 492 \r\n\r\n Bibliography 495 \r\n\r\n Exercises 496 \r\n\r\n \r\n\r\n CHAPTER 26 CONFINED-SPACE ENTRY 497 \r\n\r\n What Is a Confined Space? 498 \r\n\r\n Atmospheric Hazards 500 \r\n\r\n Physical Hazards 501 \r\n\r\n Chemical, Biological, Radiation 501 \r\n\r\n Management Responsibilities for Confined Spaces 501 \r\n\r\n Bibliography 504 \r\n\r\n Exercises 505 \r\n\r\n \r\n\r\n CHAPTER 27 RADIATION 506 \r\n\r\n Ionizing Radiation 508 \r\n\r\n Factors Affecting Exposure and Risk 512 \r\n\r\n Sources of Ionizing Radiation 512 \r\n\r\n Beneficial Uses of Ionizing Radiation 515 \r\n\r\n Fears of Nuclear Radiation 515 \r\n\r\n Ionizing/Nonionizing Interface 519 \r\n\r\n Nonionizing Radiations 519 \r\n\r\n Radio Frequency Radiation of Wireless Communication Devices 527 \r\n\r\n Bibliography 531 \r\n\r\n Exercises 531 \r\n\r\n \r\n\r\n CHAPTER 28 VIBRATION AND NOISE 532 \r\n\r\n Effects of Vibration, Sound, and Noise 533 \r\n\r\n Mechanism of Hearing Injuries 541 \r\n\r\n Elements of a Hearing Conservation Program (HCP) 542 \r\n\r\n Annoyance 547 \r\n\r\n Distraction 547 \r\n\r\n Interference and Masking 548 \r\n\r\n Other Vibration Effects 548 \r\n\r\n Bibliography 554 \r\n\r\n Exercises 554 \r\n\r\n \r\n\r\n CHAPTER 29 COMPUTERS AND SAFETY 557 \r\n\r\n Safety Uses of Computers 558 \r\n\r\n Safety Problems to Workers 559 \r\n\r\n Accidents with Computerized Equipment 559 \r\n\r\n Computer Inabilities 559 \r\n\r\n Programming Errors 562 \r\n\r\n Avoiding Human Errors 562 \r\n\r\n Safety Data Processing 562 \r\n\r\n Avoiding Safety Problems 563 \r\n\r\n Computer Controls against Hazards 563 \r\n\r\n Computers and Hazard Analyses 564 \r\n\r\n Simulations 564 \r\n\r\n Software Hazard Categories 565 \r\n\r\n Software Analysis 565 \r\n\r\n Software Hazard Analysis Techniques 567 \r\n\r\n Tailoring Software Analysis 572 \r\n\r\n Robots and Accidents 573 \r\n\r\n For the Future 575 \r\n\r\n Bibliography 575 \r\n\r\n Exercises 575 \r\n\r\n BIBLIOGRAPHY 577 \r\n\r\n INDEX 583 \r\n
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Willie Hammer noted in his Preface to the fourth edition: Occupational safety has changed since the first edition of this book came out in 1976. The United States is still the greatest industrial nation in the world, but many of its industries, its workers, the types of work they do, laws, public attitudes, and numerous other factors have changed. And so have the safety concerns of the workers, and their dependents, other relatives, neighbors, and the public in general.He closed the opening paragraph of that preface saying, "This edition attempts to incorporate some of the most notable safety considerations that have taken place since earlier editions." Now, this edition makes that same attempt. The interim between the last edition and this edition was marked with some of the most dramatic changes in occupational history.

It is my privilege to make the additions and deletions that reflect some of the changes in occupational safety engineering and management since the last edition of this text about twelve years ago. One of the most dramatic changes to occupational safety comes from the proliferation of technology and the information revolution of this past decade. Software safety is now recognized as a part of occupational safety engineering and management. Software controls the energy of industry's machinery and products. This fifth edition reflects this industrial revolution by presenting the elements of a software hazard analysis program and software hazard analysis techniques. Severity-of-consequences hazard ratings, program size, and complexity are criteriaused to determine the extent of software analysis to be employed for safety. The tech-nical tools for software analysis, such as Code Walk-Throughs, Event Tree, Soft Tree, and Sneak Circuit Analysis, are applied to safety. Software safety analysis is an essential tool for the new millennium safety engineer.

The past decade has magnified the prevalence of computers in the workplace and the electronic office. Along with this has come the ubiquity of work-related musculoskeletal disorders. The repetitive motion injuries that sometimes result in these disorders involve various worker tasks, but cumulative trauma disorders to keyboard operators have drawn attention to this problem. A new chapter, Chapter 18, Work-Related Musculoskeletal Disorders, addresses this phenomenon. Evidence of the work-relatedness of musculoskeletal disorders, factors associated with them, the back belt controversy, and the steps to establish an ergonomics program to control these injuries are discussed.

During the past ten to fifteen years, another hazard has received special attention from researchers and regulators. It is the topic of a second new chapter, Chapter 26,Confined Space Entry. New confined space entry regulations now affect hundreds of thousands of work facilities and millions of workers. The hazards of confined space sare described in Chapter 26, and guidelines for elements of a confined-spaces entry program are given briefly.

In addition to two new chapters, this edition reflects some significant changes in safety engineering and management since the last edition. Existing chapters have been revised to include these current topics, some arising out of new research, standards, and regulations. Discussions of workers with disabilities (Americans with Disabilities Act),workplace violence, older workers safety, and blood borne pathogens (Blood borne Pathogen Standard) are added to the chapter on Personnel, Chapter 9. In the past decade, behavior-based safety (BBS) programs have become a strong part of the safety movement. Chapter 10, Promoting Safe Practices, now includes a discussion of BBS.Chapter 15, Safety Analysis, includes the elements of a Process Safety Management Program and a discussion of What-if, Checklist, Hazard and Operability Study(HAZOP) and other analytic techniques now mentioned in the 29 Code of Federal Regulations. Nuclear waste, and various legal issues are new additions to other chapters. The book's contents have been revised to update topics, such as workers' compensation and workers' compensation fraud, fault tree analysis, hearing protection, environmental protection, fire protection, OSHA violation policy, the Emergency Planning and Community Right-to-Know Act, and system safety analysis. In many places, recent statistics now replace older data. Fifty-four references have been added.

The order of the chapters is changed. The first five chapters are on general introductory and administrative topics. Chapters six through fifteen are on subjects of concern to safety management and planning. The remaining chapters address safety engineering and program management of specific hazards.

These are some of the changes since the last edition: In the new millennium, workers participate more in their own protection than in the past. Managers are held more accountable for worker safety and health than before. Courts and lawyers have more influence in occupational safety than in the past. Communities are more involved in industrial safety than before. Safety engineering and management is more complicated.

My goal has been to maintain the basic no-nonsense, approach to safety that has characterized past editions. More information for managers of safety programs is given than in the past. Although much has changed, much has remained the same. The basic hazards (and preventative measures) from falls, mechanical injuries, heat and temperature, pressure, electricity, fires, explosions, toxic materials, radiation, and vibration and noise remain about the same. This revised edition retains and updates these topics and includes more details on some.

This edition is a small token of respect for Willie Hammer, whose dedication to the noble profession of safety engineering and management resulted in the first four editions of this text.

Dennis Price

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