[DOC] [TLE] NFPA report - Spontaneous combustion or chemical reaction [PAR] If the material reaches its ignition temperature, spontaneous ignition or 
combustion occurs. Examples of materials that are prone to spontaneous 
combustion include: oily rags, hay, and other agricultural products. ... Oily rags 
were the item first ignited in 22% of storage property fires, and agricultural crops, 
including fruits and... [DOC] [TLE] Spontaneous combustion - Wikipedia [PAR] Spontaneous combustion or spontaneous ignition is a type of combustion which 
occurs by ... The temperature of the material rises above its ignition point (even 
though ... Linseed oil in a partially confined space (such as a pile of oil-soaked 
rags left out ... Hay is one of the more studied materials in spontaneous 
combustion. [DOC] [TLE] What Causes Spontaneous Combustion - Today I Found Out [PAR] Dec 19, 2013 ... Spontaneous heating of coal occurs when sufficient oxygen is available to ... 
Counter-intuitively, hay will spontaneously combust if it gets too wet. ... called 
exothermic bacteria, start a process of chemical change that rapidly ... to have 
been started when workers left behind rags stained with linseed oil.. [DOC] [TLE] The Phenomenon of Spontaneous Combustion | Firehouse [PAR] Biological processes occur within organic materials such as hay and grass 
clippings. ... Chemical reactions may produce heat; reactions that produce heat 
are ... not spontaneously ignite and cannot start to burn without some other 
ignition source. ... The fire was started by spontaneous combustion in linseed oil-
soaked rags... [DOC] [TLE] Download - Origin and Cause [PAR] its own. What do these scenarios have in common? There is no identifiable ... 
Simply put, it means self-heating, and it happens more often ... materials occurs, it 
creates heatan exothermic reaction.1 ... are also at risk of a self-heating fire 
due to clothes and ... sourceoily rags, containers, towels, grass and hay, to 
name. [DOC] [TLE] Spontaneous Combustion: Fact or Fiction - Constant Contact [PAR] Structures storing hay and grain are at risk for fire, so proper storage of these 
materials is essential. ... A pile of dirty rags spontaneously catches fire in 
someone's garage. Round hay bales ... Due to chemical, biological, or physical 
processes, combustible materials self-heat to a temperature high enough for 
ignition to occur. [DOC] [TLE] Spontaneous Combustion of Drying Oils as a Fire ... - T.C. Forensic [PAR] Spontaneous combustion occurs when the temperature of a material ... process, 
under the right conditions include sawdust, oily materials (including drying oils), 
hay, waste paper, coal and charcoal, pyrophoric metals and incompatible 
chemicals, Due to the nature of ... its behaviour when suppression of the fire is 
attempted. [DOC] [TLE] Investigating Claims Involving Spontaneous Combustion [PAR] May 21, 2013 ... Stain-soaked cotton rags is a common, well known source of spontaneous 
combustion fires. ... grains  moderate; Latex foam rubber  moderate; Hay  
moderate ... work is performed and materials prone to spontaneous combustion 
are ... is still curing and experiencing an exothermic chemical reaction. [DOC] [TLE] Spontaneous Ignition, Part II: Investigation by John D ... - InterFire [PAR] Investigation of fires caused by self-heating, because of the balances of time and 
heat ... In spontaneous ignition the most significant fire damage will most often be 
in the ... Other chemical reactions such as hypergolic mixtures or drying oils (in ... 
an hour is not unheard of for reactive materials like linseed oil on cotton rags,... [DOC] [TLE] CBD-189. Spontaneous Ignition - NRC-IRC - MIT [PAR] Sep 1, 1977 ... It is a complex phenomenon of combustible material ignited by its own heat of ... 
For hay to self- heat to ignition it has been reported that a moisture content ... to 
ignition temperature is due to oxidation, which is chemical in nature. ... self-
heating is not simple because two or more reactions often occur, either... [DOC] [TLE] Fire Investigation  The Forensics Library [PAR] Fire occurs due to the exothermic reaction of combustion (burning), ... a self-
sustaining chemical chain reaction  to produce the fire tetrahedron. ... This will 
often be

Question: Often occurring in oily rags or hay, it's the self-burning of materials due to chemical changes
Answer: spontaneous combustion