Download or read book Low Flow Fume Hood written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A fume hood is provided having an adequate level of safety while reducing the amount of air exhausted from the hood. A displacement flow fume hood works on the principal of a displacement flow which displaces the volume currently present in the hood using a push-pull system. The displacement flow includes a plurality of air supplies which provide fresh air, preferably having laminar flow, to the fume hood. The displacement flow fume hood also includes an air exhaust which pulls air from the work chamber in a minimally turbulent manner. As the displacement flow produces a substantially consistent and minimally turbulent flow in the hood, inconsistent flow patterns associated with contaminant escape from the hood are minimized. The displacement flow fume hood largely reduces the need to exhaust large amounts of air from the hood. It has been shown that exhaust air flow reductions of up to 70% are possible without a decrease in the hood's containment performance. The fume hood also includes a number of structural adaptations which facilitate consistent and minimally turbulent flow within a fume hood.
Download or read book Energy Efficient Laboratory Fume Hood written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The present invention provides a low energy consumption fume hood that provides an adequate level of safety while reducing the amount of air exhausted from the hood. A low-flow fume hood in accordance with the present invention works on the principal of providing an air supply, preferably with low turbulence intensity, in the face of the hood. The air flow supplied displaces the volume currently present in the hood's face without significant mixing between the two volumes and with minimum injection of air from either side of the flow. This air flow provides a protective layer of clean air between the contaminated low-flow fume hood work chamber and the laboratory room. Because this protective layer of air will be free of contaminants, even temporary mixing between the air in the face of the fume hood and room air, which may result from short term pressure fluctuations or turbulence in the laboratory, will keep contaminants contained within the hood. Protection of the face of the hood by an air flow with low turbulence intensity in accordance with a preferred embodiment of the present invention largely reduces the need to exhaust large amounts of air from the hood. It has been shown that exhaust air flow reductions of up to 75% are possible without a decrease in the hood's containment performance.
Download or read book Laboratory Fume Hoods written by G. Thomas Saunders and published by John Wiley & Sons. This book was released on 1993-05-06 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough reference on adequate fume hood design and use. Dissects this device down to its bare essentials. Examines how and why a fume hood works. The book will help you test, locate, ventilate and maintain hoods which are all on site, field-generated and both old and new.
Download or read book Prudent Practices in the Laboratory written by National Research Council and published by National Academies Press. This book was released on 2011-03-25 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prudent Practices in the Laboratory-the book that has served for decades as the standard for chemical laboratory safety practice-now features updates and new topics. This revised edition has an expanded chapter on chemical management and delves into new areas, such as nanotechnology, laboratory security, and emergency planning. Developed by experts from academia and industry, with specialties in such areas as chemical sciences, pollution prevention, and laboratory safety, Prudent Practices in the Laboratory provides guidance on planning procedures for the handling, storage, and disposal of chemicals. The book offers prudent practices designed to promote safety and includes practical information on assessing hazards, managing chemicals, disposing of wastes, and more. Prudent Practices in the Laboratory will continue to serve as the leading source of chemical safety guidelines for people working with laboratory chemicals: research chemists, technicians, safety officers, educators, and students.
Download or read book Reduced Worker Exposure and Improved Energy Efficiency in Industrial Fume hoods Using an Airvest written by and published by . This book was released on 1992 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reduction in the breathing zone concentration of an experimentally simulated pollutant, by factors ranging from 100 to 800, was observed with the device (called an airvest). With use of the airvest by the worker, the hood face velocity can be reduced, leading to substantial energy savings in conditioning of make up air in the building. The airvest works by elimination or ventilation of the eddy that develops in front of a worker when the worker stands in the open face of a fume hood. Normally this eddy draws some of the pollutant (commonly generated near and in front of the worker) towards the worker's breathing zone. Experiments sing a heated full-size mannequin were conducted with a full scale walk-in fume hood. Sulfur hexafluoride was used to simulate pollutant generation and exposure during a work situation. Flow visualization with smoke was also undertaken to evaluate the airvest qualitatively. 3 refs.
Download or read book Laboratory Fume Hoods Explained written by Chip Albright and published by . This book was released on 2020-10-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "It doesn't matter if the hoods work, it only matters that we have them and that people assume they work."This callous comment from a laboratory owner who was preparing to build a new laboratory shocked fume hood designer and manufacturer, Chip Albright and convinced him to write this book. Albright's 40 years in the fume hood industry took him into hundreds of laboratories around the world and exposed the fact that the fume hood is the most misunderstood and misused safety device in most laboratories. Until now, understanding the complexity of laboratory ventilation systems was a nearly impossible feat for most. This book takes a step by step approach to explaining the interface between the fume hood, the laboratory ventilation system and the building HVAC. It reveals not only the failings of these systems, but suggests solutions for making them better. Albright's holistic approach to the subject is refreshing and effective. If you own or work in a laboratory, this book is required reading.Finally, a single source that includes:?the history of the fume hood?a detailed explanation of how a fume hood works?why most fume hoods do not perform effectively?why all laboratory users should be concerned?how to ensure that your laboratory fume hood is actually keeping your laboratory safe
Download or read book Exposure Assessment and Safety Considerations for Working with Engineered Nanoparticles written by Michael J. Ellenbecker and published by John Wiley & Sons. This book was released on 2015-06-26 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses health and safety issues associated with workplace Nanoparticle exposures • Describes methods to evaluate and control worker exposures to engineered nanoparticles • Provides guidance for concerned EHS professionals on acceptable levels of exposure to nanoparticles • Includes documentation on best practices to be followed by all researchers when working with engineered nanoparticles • Describes current knowledge on toxicity of nanoparticles • Includes coverage on Routes of Exposure for Engineered Nanoparticles
Download or read book Biological Safety written by Dawn P. Wooley and published by John Wiley & Sons. This book was released on 2020-07-02 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological safety and biosecurity protocols are essential to the reputation and responsibility of every scientific institution, whether research, academic, or production. Every risk—no matter how small—must be considered, assessed, and properly mitigated. If the science isn't safe, it isn't good. Now in its fifth edition, Biological safety: Principles and Practices remains the most comprehensive biosafety reference. Led by editors Karen Byers and Dawn Wooley, a team of expert contributors have outlined the technical nuts and bolts of biosafety and biosecurity within these pages. This book presents the guiding principles of laboratory safety, including: the identification, assessment, and control of the broad variety of risks encountered in the lab; the production facility; and, the classroom. Specifically, Biological Safety covers protection and control elements—from biosafety level cabinets and personal protection systems to strategies and decontamination methods administrative concerns in biorisk management, including regulations, guidelines, and compliance various aspects of risk assessment covering bacterial pathogens, viral agents, mycotic agents, protozoa and helminths, gene transfer vectors, zooonotic agents, allergens, toxins, and molecular agents as well as decontamination, aerobiology, occupational medicine, and training A resource for biosafety professionals, instructors, and those who work with pathogenic agents in any capacity, Biological safety is also a critical reference for laboratory managers, and those responsible for managing biohazards in a range of settings, including basic and agricultural research, clinical laboratories, the vivarium, field study, insectories, and greenhouses.
Download or read book The Ecological Engineer written by David R. Macaulay and published by Ecotone Publishing. This book was released on 2006 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE ECOLOGICAL ENGINEER is a new book series that celebrates the most innovative engineers in North America and the practices and principles that they use to produce functionally outstanding structures, systems and technologies, in a way that embraces the emerging philosophy of sustainable design. Organized into three critical sections--Practice, Principles and Projects, the book provides a valuable resource and touchstone for engineers, architects and other design professionals who hope to embrace an ethic that is responsible to both people and the environment. VOLUME ONE: KEEN ENGINEERING focuses on the innovative work of one of the leading sustainable MEP firms in North America--KEEN Engineering. As mechanical, electrical and plumbing engineers who work on projects all over the continent, they have consistently been inspiring on multiple levels--as a company, as individuals and just by the sheer volume and quantity of their work.--Provided by publisher.
Download or read book The Design of a Dust controlled Vented Hood Utilizing Laminar Air Flow written by W. J. Whitfield and published by . This book was released on 1963 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a laminar air flow vented clean hood and presents performance data for it. This open-front hood provides a clean work area for operations that require removal of particles or noxious gases. This hood provides dust levels of less than 1000 particles per cubic foot 0.32 micron and larger.
Download or read book The Foundations of Laboratory Safety written by Stephen R. Rayburn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Safety is a word that has many connotations, of risk ofa possible accident that is acceptable conjuring up different meanings to different to one person· may not be acceptable to an people. What is safety? A scientist views safety other. This may be one reason why skydiving as a consideration in the design of an exper and mountain climbing are sports that are not iment. A manufacturing plant engineer looks as popular as are, say, boating or skiing. on safety as one of the necessary factors in But even activities that have high levels of developing a manufacturing process. A legis potential risk can be engaged in safely. How lator is likely to see safety as an important part can we minimize risks so that they decrease of an environmental law. A governmental ad to acceptable levels? We can do this by iden ministrator may consider various safety issues tifying sources of hazards and by assessing the when reviewing the environmental conse risks of accidents inherent to these hazards. quences of a proposed project. An attorney Most hazards that are faced in the laboratory may base a negligence suit on safety defects.
Download or read book The Potential for Air Flow Reduction in Fume Hoods at Hanford written by and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fume Hood Performance Measurements written by Cecilia Rhoneʹe Rodgers and published by . This book was released on 2006 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory fume hoods at the University of Kentucky were quantitatively and qualitatively evaluated for fume and hood performance. Testing included face velocity measurements and flow visualization. the ANSI/ASHRAE 110 method utilizing a tracer gas, an infrared spectrometer, and a mannequin was also performed. Concentrations in the mannequin's breathing zone were recorded to determine a level of contaminant leakage. The fume hoods were then tested using a new procedure, the smoke particle challenge method. The experimental method is one that builds on the ANSI/ASHRAE standard by using a TSI P-trak to qualitatively measure if there is any escape of any contaminants from the hood. The results from each test were reviewed individually, and then compared to each other in order to establish a comprehensive evaluation for the separated procedures.
Download or read book Prudent Practices in the Laboratory written by National Research Council and published by National Academies Press. This book was released on 1995-09-16 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume updates and combines two National Academy Press bestsellers--Prudent Practices for Handling Hazardous Chemicals in Laboratories and Prudent Practices for Disposal of Chemicals from Laboratories--which have served for more than a decade as leading sources of chemical safety guidelines for the laboratory. Developed by experts from academia and industry, with specialties in such areas as chemical sciences, pollution prevention, and laboratory safety, Prudent Practices for Safety in Laboratories provides step-by-step planning procedures for handling, storage, and disposal of chemicals. The volume explores the current culture of laboratory safety and provides an updated guide to federal regulations. Organized around a recommended workflow protocol for experiments, the book offers prudent practices designed to promote safety and it includes practical information on assessing hazards, managing chemicals, disposing of wastes, and more. Prudent Practices for Safety in Laboratories is essential reading for people working with laboratory chemicals: research chemists, technicians, safety officers, chemistry educators, and students.
Download or read book DOE this Month written by and published by . This book was released on 2000 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASHRAE Laboratory Design Guide written by and published by Ashrae. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Reference manual for planning, design, and operation of laboratory HVAC systems to reduce the laboratory's energy footprint while ensuring safety, providing good comfort and indoor air quality, and protecting the integrity of experiments; includes online access to electronic design tools that illustrate features of laboratories and provide practical design aids"--
Download or read book Building Type Basics for Research Laboratories written by Daniel Watch and published by John Wiley & Sons. This book was released on 2008-09-22 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wiley Building Type Basics series provides architects and other professionals with the essential information they need to jumpstart the design of a variety of facilities. This volume covers the design of research laboratories, with the practical information necessary to meet the construction and renovation needs of this increasingly complex industry. Featuring more than 200 illustrations, the Second Edition now addresses laboratory construction in Asia, the Middle East, and Europe, and updates its information for post-9/11 research needs and trends, including the current International Building Codes. New and updated projects from a variety of designers including Duke University's Medical Science Research Building, GlaxoWellcoms laboratories in the UK, and the US government's Argon laboratory.
