Compile written process safety information for working with hazardous chemicals, including flammable materials are or may be present, 29 cfr 1910. Identifying ignition sources hot work static electricity hot surfaces pyrophoric iron sulphides. Ignition sources control ignition sources in your plant. It is a dry read and may cause you to doze off, but if you are looking for information on ignition sources this is the book to have. For example, incendiary or suspicious ignition sources comprised nearly 15% of residential upholstered furniture fires in 198387 11. An explosion can occur when flammable gases or vapors in the air come in contact with an ignition source such as a spark.
Danger no open flame, ignition source beyond this point sign s8193 from. Ignition source article about ignition source by the. Primary sources are immediate, firsthand accounts of a topic, from people who had a direct connection with it. Open flames, sparks, static electricity, and hot surfaces are all possible ignition sources. Focusing on the different sources of ignition, in particular the flammable tendency of chemicals and products, this book discusses such topics as flash points. Publication date 19720328 topics ignition, rockets, john, clark, boom, liquid, propellent collection opensource language english. Ignition sources the information on this section of the site looks at the many possible ignition sources found in the upstream oil and gas industry. Such sources include appliance burners, burner ignitions and electrical switching devices. The appendices deal with chemicals, selfheating substances, organic peroxides, substances prone to spontaneous combustions, unstable substances, flammability characteristics of dusts, and a checklist of possible sources of ignition.
Whatever the risk, good machine maintenance and hygiene is central to risk mitigation, because a foreign object lodged in front of the laser can be an ignition source. Flammability characteristics of chemicals and products describes the flammability characteristics of substances and deals with the different sources of ignition. Flammability characteristics of chemicals and products paperback january 2, 2014 by john bond author visit amazons john bond page. Encyclopedia of wildfires and wildlandurban interface wui fires, publisher. A guide to flammable products and ignition sources for. The sources included a cigarette, a small match like flame, an incandescent lamp, a space heater, and a large flame source ctb 3 equivalent gas burner. Speeches, diaries, letters and interviews what the people involved said or. These mixtures are, figuratively and literally, nightmare fuel. Natural heat sources to spark fires, primarily lightning, but also including other natural events, such as volcanoes or meteors, have existed through the history of the planet. What are the four possible ignition sources that may be found.
The best way to prevent fires and flammable vapor explosions, either inside or outside process piping and equipment, is to avoid creating a flammable mixture. Ignition sources people are responsible for most of the fires that occur in northern australia prescribed fires, accidental fires and those started by arson. Glowinghotwire based test methods, hotwire coil ignitability test on materials withdrawn iso standard. Sources of ignition guidelines for engineering for. In many cases, however, because of the heterogeneous nature of dust clouds and the difficulty. The process of determining the ignition source for a fire, by eliminating all ignition sources found, known or believed to have been present in the area of origin, and then claiming such methodology is proof of an ignition source for which there is no evidence of its existence, is referred to by some investigators as negative corpus.
D6194 test method for glowwire ignition of materials. May 01, 20 ignition sources in the explosives industry can be summarized as fish which are friction between surfaces, impact between impacting or colliding surfaces, increase of pressure and temperature, static electrostatic discharge and heat fire, decomposition, adiabatic compression, radiant heat, prolonged friction. Danger no open flame, ignition source beyond this point. At the same time, users need to prevent ignition sources reaching areas of particulate build upthis can be as simple as the use of a spark trap, spark arrestor or inerting powders. And, of course, i have drawn on my own records and.
Guidelines for determining the probability of ignition of. A flame, spark or hot surface capable of igniting flammable vapors or fumes. Ignition sources can be as simple as the hot work itself. Fires have been burning on earth largely since the origin of plants as the existence of fire depends on a combination of fuel, sufficient oxygen levels, and a heat source pausas and keeley 2009. Fires need three things to start a source of ignition heat, a source of fuel something that burns and oxygen. Flammable and combustible materials ian sutton technical books. Ignition sources in the explosives industry can be summarized as fish which are friction between surfaces, impact between impacting or colliding surfaces, increase of pressure and temperature, static electrostatic discharge and heat fire, decomposition, adiabatic compression, radiant heat, prolonged friction. The flaming ignition sources involved in upholstered furniture fires cover a considerable spectrum but their characteristics are not always welldefined. Prevention and control of ignition sources in the explosives. Ignition handbook and database fire science and technology inc. The oxygen provides a firefriendly environment, the fuel will burn, and the ignition source will cause the fuel to ignite.
Irp18 website copy final june 14 sue ignition sources. Lightning source is very competitive in price, and their distribution system is the most efficient available. A flash fire is a sudden, intense fire caused by ignition of a mixture of air and a dispersed flammable substance such as a solid including dust, flammable or combustible liquid such as an aerosol or fine mist, or a flammable gas. This practice describes such ignition sources and provides information on the standard. Ignition sources include hot surfaces, electricity including static electricity, flames, and sparks. Flammable gases, such as well gases, vapors, and hydrogen sulfide, can be released from wells, trucks, production equipment or surface equipment such as tanks and shale shakers. Jan 06, 2011 secondary ignition is heating a flammable object beyond its kindling point, causing it to combust. Ignition sources for dust clouds prevention dust explosion. Many sources of ignition exist, including open flames, hot gases, hot surfaces, mechanical sparks and electrical sparks, among others. Any ignition of natural or human origin direct or indirect that can provoke a wildfire. For inside process equipment, this means controlling the fuel and oxygen sides of the fire triangle. Some are well understood and readily identified, while others deserve further examination. Sources of ignition may include open flames, lightning, smoking, cutting and welding, hot surfaces, frictional heat, sparks static, electrical and mechanical, spontaneous.
Ignition sources in hazardous areas the officially recognized ignition sources or fire starters are given in european standard en 11271 2011. A chapter is dedicated to the general topic of selfheating and a chapter is devoted to the characterization of ignition sources. Babrauskas and others published ignition sources find, read and cite all the research you need on researchgate. Contractor and government agency progress sometimes. Chapters 1 through include presentations of the fundamental principles of ignition sources and of the response of ignitable materials to heat or energy in various forms. Seal all relays, switches, motors, and other similar ignition sources to a leak rate of less than or equal to 1. Sources of ignition guidelines for engineering for process. Flammability characteristics of chemicals and products. Electrical ignition sources can often be controlled by one of the following procedures, which are listed in the order of preference. How the mp influences on the determination of ignition probability is discussed in purple book, bevi manual and. An ignition source is a process or event which can cause a fire or explosion. Glazes from natural sources is fully illustrated, with diagrams of techniques demonstrated as well as images of the finished works of potters to show the results of these natural glazes. Heated process vessels such as dryers and furnaces. Fires are lit by a variety of land managers including the bushfires council, conservationists, traditional owners, rural block owners and pastoralists.
A fire requires a combination of three elements to ignite and remain burning. Study on ignition probability of flammable materials after. Introduction fires have been burning on earth largely since the origin of plants as the existence of fire depends on a combination of fuel, sufficient oxygen levels, and a heat source pausas and keeley 2009. Safety and health topics oil and gas extraction safety. A dust explosion will occur only if a dust is dispersed in air or oxygen within the explosive range and if, at the same time, a suitable source of. It is pointed out that energy levels derived for ignition by sparks cannot be used in any simplistic way to evaluate the risk of ignition by rf sources characterized by power, which is only a measure of energy per unit of time. Find all the books, read about the author, and more. These three criteria are often referred to as the fire triangle shown in figure 1.
The ignition handbook database is now also being sold as download excel files and not a physical cdrom. Flames and hot gases including hot particles this is one of. Glazes from natural sources brian sutherland, nigel wood. It can occur through the direct or indirect application of heat.
The first section takes a topical, structured approach to ignition phenomena. In locations where flammable vapors may be present, precautions shall be taken to prevent ignition by eliminating or controlling sources of ignition. Well this seems to catch a water heater, electrical or gas in my reading of the definition. Newspaper reports, by reporters who witnessed an event or who quote people who did. What is the difference between the ignition handbook and the ignition handbook database.
The book is comprised of six chapters and seven appendices. Ignition sources a the scene of a hazardous materials spill include electronic device, static electricity from clothing, flashlights, and anything that produces a spark. This edition includes a new chapter by glaze expert nigel wood. First published in 1987, this book is considered a classic by ceramicists. Oclcs webjunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus. The guide to wildland fire cause and determination provides recommended procedures, practices and techniques methods for use within a problem solving framework to conduct a systematic wildland fire investigation resulting in a determination of the ignition area, cause, and ignition sequence. The tests were performed in a furniture calorimeter where heat release rate and species production rates were obtained. Numerous and frequentlyupdated resource results are available from this search. Hazardous area classification and control of ignition sources. Ignition results when any heat source sufficient to ignite a fuel does so. Preventive measures are aimed at avoiding the presence of either, or preferably both, these factors in the system. Astm e3020 16a standard practice for ignition sources. Astm d3874 20 standard test method for ignition of.
In the united states alone, deaths due to furniture and bed fires still rank as the topmost category of fire losses. The officially recognized ignition sources or fire starters are given in european standard en 11271 2011. Fires require the presence of fuel, air oxygen and a source of ignition. This technical measures document refers to the classification of plant into hazardous areas, and the systematic identification and control of ignition sources. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel. In the process of ignition, once a propagating flame is provided enough energy from an ignition source, it turns into a selfsustaining flame.
Sep 21, 2019 the guide to wildland fire cause and determination provides recommended procedures, practices and techniques methods for use within a problem solving framework to conduct a systematic wildland fire investigation resulting in a determination of the ignition area, cause, and ignition sequence. Flames and hot gases including hot particles this is one of the most effective source of ignition. Workers in the oil and gas industries face the risk of fire and explosion due to ignition of flammable vapors or gases. Factsheet occupational safety and health administration. Lightning source book printing services for publishers.
It is characterized by high temperature, short duration, and a rapidly moving flame front. Ignition source definition and meaning collins english. The matchstick burns because of exposure to the nowburning head primary ignition. The flammability of upholstered furniture is a major concern of engineers and others across a wide swath of organizations. Sources of ignition a dust explosion will occur only if a dust is dispersed in air or oxygen within the explosive range and if, at the same time, a suitable source of ignition is present. The book includes 627 blackandwhite figures, 447 tables, and 140 color plates. An informal history of liquid rocket propellants by john d. Complete a process hazard analysis that addresses the hazards of the process, including control of ignition sources such as internal. Fire behavior of upholstered furniture and mattresses. Smashwords guide to wildland fire origin and cause. The combination of lightning source pod technology and one stop, direct distribution make it possible for us to keep titles in print that we couldnt normally justify warehousing. Section 4 discusses some of the factors governing ignition of fuels by rf sources.
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