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Forensic Fire Investigation
Member rating: No Rating | Words: 1139 | Submitted: Wed Nov 28 2007
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BTEC National Diploma in Forensic Science Year 2 Forensic Fire Investigation Assignment One Laura Oakley Sources of Ignition There are four stages to the start of a fire; Pre-ignition/Pre-heating, Ignition and Combustion and in order for the fire to begin three things are needed; Heat, Oxygen and a Fuel as shown The Fire Triangle. There is a large amount of potential sources of ignition these can vary for the uses of cigarettes or matches to mechanical machinery which could not function correctly or could create sparks. A full list of potential sources of ignition is listed below: * Open Flames- This can be from Welders, Cigarettes, Matches or Cutters. * Hot Surfaces- This can be from Dryers, Heaters etc. * Heat from Machinery * Electrical Discharges- A spark of anything over 1mJ can ignite a dust cloud. * Electrostatic Discharges * Smouldering or Burning Dust In order to lower the risk of a potential fire all potential sources of ignition should...
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