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Topic: Explosive material


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  Explosive material   (Site not responding. Last check: 2007-10-13)
Explosives are classified by their sensitivity which the amount of energy to initiate the This energy can be anything from a an impact a friction an electrical discharge the detonation of another explosive.
Explosive force is released at 90 degree from the surface of an explosive.
The procedure for calculating oxygen balance in of 100 grams of the explosive material to determine the number of gram atoms oxygen that are excess or deficient for grams of a compound.
www.freeglossary.com /Explosive   (4552 words)

  
 Explosive material
There are many other varieties of more exotic explosive material, and theoretical methods of causing explosions such as nuclear explosives and antimatter, and other methods of producing explosions, such as abrupt heating with a high-intensity laser or electrical arc.
Explosive force is released at 90 degree angles from the surface of an explosive.
The procedure for calculating oxygen balance in terms of 100 grams of the explosive material is to determine the number of gram atoms of oxygen that are excess or deficient for 100 grams of a compound.
www.askfactmaster.com /Explosive   (4961 words)

  
 Protective arrangement against projectiles, particularly hollow explosive charge projectiles - Patent 4368660
The prior art protective arrangement is unsuitable to protect against such hollow explosive charge projectiles because, as is known, at the instant of impact of the projectile and due to the detonation of the hollow explosive charge released thereby, an energy-rich thorn or jet is formed from the lining material of the hollow explosive charge.
Explosive materials which exhibit such characteristics are preferred for the inventive purposes because premature, unintentional and thus undesired explosion of the explosive wall layer is effectively prevented.
The speed of movement of the wall layers 2 and 4 is dependent on the nature and quantity of the explosive material in the explosive wall layer 3 and also on the nature and quantity of the inert material of the wall layers 2 and 4.
www.freepatentsonline.com /4368660.html   (4192 words)

  
 Æ Aeragon - Military Explosives
Explosives are defined as materials (chemical or nuclear) that can be initiated to undergo very rapid, self-propagating decomposition that results in the formation of a more stable material, the liberation of heat, or the development of a sudden pressure effect through the action of heat on produced or adjacent gases.
Generally, chemical explosives are substances where the fuel and oxidizer are combined in the same material thereby causing the reaction to be self-propagating.
Black powder was the first known explosive and it continued to be the main explosive material until the late-1800s.
www.aeragon.com /o/me   (3787 words)

  
 S
A high explosive which is relatively insensitive to heat and shock, usually initiated by a primary explosive or by an exploding bridgewire.
Tracer with an igniter element, placed between the explosive in an antiaircraft projectile and the tracer element, that is designed to detonate the explosive after the projectile has passed the target point but is still high enough to be harmless to ground troops.
Strength of materials, the capacity of materials to withstand stress (the internal force exerted by one part of an elastic body upon an adjoining part) and strain (the deformation or change in dimension occasioned by stress).
www.hydrocut.com /Terms/S.html   (7210 words)

  
 New Page 1
It should be noted that the stimulus to which the explosive is exposed must be included in any reference to the sensitivity, whether shock, low velocity impact, friction, electrostatic discharge, or other source of energy.
Those explosives which are relatively, in comparison to primary explosives, insensitive to shock, friction or heat.
An explosive or firing train is a sequence of events which begin with relatively low levels of energy that causes a chain reaction to initiate the final explosive material or main charge.
www.fireandsafety.eku.edu /VFRE-99/Recognition/General/General.htm   (499 words)

  
 KARACHI: 11 grenades, 500kg explosive material seized -DAWN - Local; 21 January, 2004
He said the explosive experts, after examining the grenades, had reached a conclusion that the grenades were Russian-made, and added that a search operation had been launched in the locality some days back to arrest terrorists, some of whom, fearing arrest, might have thrown the grenades out.
Referring to the recovery of huge cache of explosives from an abandoned Mehmoodabad house, he said criminals had been forced to abandon their weapons and ammunitions to avoid raids and arrests, as they were feeling insecure.
Explosive experts, after examining the chemicals, said that by mixing chemicals with Vaseline, a certain level of heat would convert the substance into explosive, which could be used to make bombs.
www.dawn.com /2004/01/21/local2.htm   (400 words)

  
 Howstuffworks "How C-4 Works"
The explosive material undergoes a rapid chemical reaction, either a combustion or decomposition reaction, when triggered by heat or shock energy from the detonator.
In low explosives, such as the propellant in a bullet cartridge, the reaction occurs relatively slowly and the pressure isn't as damaging.
Explosives experts refer to rapid explosive reactions as detonation and slower explosive reactions as deflagration.
science.howstuffworks.com /c-4.htm/printable   (1369 words)

  
 CMS—Checking Out the Hot Spots   (Site not responding. Last check: 2007-10-13)
High explosives are an essential component of a nuclear weapon because they initiate the nuclear reaction.
Historically, scientists relied on rules of thumb in materials science, laboratory testing of explosives, and accident analysis to determine the dynamics of explosive materials.
In early experiments, scientists crushed a piece of explosive material on a glass plate and identified small spots of light seen from underneath as hot spots.
www-cms.llnl.gov /s-t/hot_spot.html   (1625 words)

  
 Talk:Explosive material - Wikipedia, the free encyclopedia
Rmhermen, I removed your addition of picric acid from the primary explosives section, because I don't believe it is correct.
It is not an explosive, it is an additive that is used to modify the physical properties of actual explosives.--BillFlis 23:49, 7 August 2006 (UTC)
In practice, such explosives are seldom used in a pure state (mainly for safety reasons), but the other chemicals that are introduced (such as binders and plasticizers) generally do not contribute much (if at all) to the chemistry of the explosion.
en.wikipedia.org /wiki/Talk:Explosive_material   (1043 words)

  
 55 killed 145 wounded in explosive material blast in Diamir
The explosives stores in a house of the village used for road building ignited in a home in a village in Diamir district of Gilgit, a town some 240 km north of Islamabad.
The explosives were stored in the residence of a local contractor, Waris Khan, who died in the blast in the village of Ghair early Sunday, local police official said.
The home storing the explosives was made of wood, and it was believed that an electrical short circuit caused a fire in the storage area, igniting the explosives, said an Interior Ministry official, who spoke on condition of anonymity.
www.jammu-kashmir.com /archives/archives2003/kashmir20030803a.html   (638 words)

  
 ATF - List of Explosive Materials
This chapter covers not only explosives, but also blasting agents and detonators, all of which are defined as explosive materials in section 841(c) of title 18, U.S.C. Accordingly, the following is the 2002 List of Explosive Materials subject to regulation under 18 U.S.C. chapter 40.
Materials constituting blasting agents are marked by an asterisk.
We have added these explosive materials to the List because their primary or common purpose is to function by explosion.
www.space-rockets.com /listofexp.html   (468 words)

  
 Explosive Material Shipment Fact Sheet   (Site not responding. Last check: 2007-10-13)
Class 1 materials are further divided into hazard class divisions (1.1, 1.2, etc.) based upon the primary hazard inherent to each type of explosive.
Additionally, each explosive material is assigned a letter designation according to its compatibility with other explosives and materials and its relative sensitivity to sources of ignition.
Division 1.5 denotes materials that possess a mass explosion hazard, but are so insensitive that there is little probability of initiating an explosion during normal conditions of transport.
www.uscg.mil /d14/units/msohono/factbook/explosive.htm   (883 words)

  
 Stuffo "How C-4 Works"   (Site not responding. Last check: 2007-10-13)
C-4, or composition 4, is one variety of plastic explosive.
The basic idea of plastic explosives, also called plastic bonded explosives (PBX), is to combine explosive chemicals with a plastic binder material.
It coats the explosive material, so it's less sensitive to shock and heat.
www.stuffo.com /c-42.htm   (816 words)

  
 CNN.com - Campaigns battle over missing explosives - Oct 26, 2004
The missing material, all listed as "highly explosive material," includes 194.7 metric tons of HMX, or "high melting point explosive;" 141.2 metric tons of RDX, or "rapid detonation explosive" among other designations; and 5.8 metric tons of PETN, or pentaerythritol tetranitrate.
"Some explosive material at the time was discovered, although none of it carried IAEA seals, and this discovery was reported to coalition forces for removal of the material," Ereli said.
The news of the missing explosives came on the heels of another IAEA report this month in which the agency said machinery from Iraq's nuclear facilities was missing.
www.cnn.com /2004/WORLD/meast/10/26/iraq.explosives.intl/index.html   (1351 words)

  
 Health & Safety @ The University of Mississippi
Explosives are a class of materials, either solids or liquids, that can undergo a rapid chemical decomposition when subject to an external force (shock, friction, sparks, etc.).
The rate of decomposition across the explosive material travels faster than the speed of sound, and produces large amount of heat and gas.
Factors that can transform common reagents into explosives may be as simple as extended storage time, increased storage temperatures, or allowing a material to dry out.
www.olemiss.edu /depts/environmental_safety/ex.html   (434 words)

  
 The Command Post - Global Recon - Explosive Material Found in UK Anti-Terror Raids
An anti-terror source said the fertilizer was similar to explosive materials used in the 2002 Bali bombings, although there was no evidence that a bombing was planned or any possible target.
However the source said there was enough material to launch an attack on the same scale as the huge 1996 bombing near Canary Wharf in London's financial district.
Hanwell, where they found the ton of explosive is a 15 minute walk from my house...The brits are used to being threatened by cowards who target civilians, we don't let it stop us going about our daily lives and neither should you.
www.command-post.org /nk/2_archives/011225.html   (719 words)

  
 : Technical Dialogue   (Site not responding. Last check: 2007-10-13)
Explosive materials are rated in terms of equivalent TNT or the mass equivalent TNT.  For example, a TNT equivalent of 1.2 would mean that 1 pound of the material would be equivalent to 1.2 pounds of TNT.
As mentioned earlier, there are different methods used to test or measure the explosive power of different explosive materials.  Some of these measure all the energy produced, both the initial shock wave or pressure pulse plus the later arriving energy.
The bottom line is that a TNT Equivalent value is useful but the user should understand the implications of using such a value and develop a solid technical understanding through study, training and experience.
www.imakenews.com /aristatek/e_article000073726.cfm   (263 words)

  
 NESTT Non-Explosives
Non-Hazardous Explosives for Security Training and Testing (NESTT) is a concept developed at the Lawrence Livermore National Laboratory (LLNL) in Livermore, California under the direction of nationally renowned explosives expert John Kury.
NESTT is a safe alternative to using actual explosives for assisting in training bomb sniffing dogs and personnel.
NESTT materials are also available for use with quadrapole resonance and trace explosive detection instruments.
www.xm-materials.com   (233 words)

  
 SAN FRANCISCO / Starbucks 'bomb' found to be harmless / Preliminary tests apparently find no explosive material   (Site not responding. Last check: 2007-10-13)
San Francisco authorities are no longer sure a device found in a Starbucks bathroom -- which they characterized for two days as a potentially lethal bomb -- had any explosive material in it after all, and they say the man who left it may never be charged.
On Wednesday, agents of the federal Bureau of Alcohol, Tobacco, Firearms and Explosives analyzed residue left behind after police blasted the device with a water cannon to render it safe.
Some authorities suggested Wednesday that a small blast heard when police turned the water cannon on the device -- first thought to have been caused by explosive material -- was in fact the result of high-pressure water hitting flashlight batteries.
www.sfgate.com /cgi-bin/article.cgi?f=/c/a/2006/01/12/BAGIOGM4JG1.DTL   (589 words)

  
 Reactive Hazards Reduction, Inc. -- Reactive & Explosive Material Specialist   (Site not responding. Last check: 2007-10-13)
Reactive Hazards Reduction, affiliated with Environmental Waste Minimum Inc., is a company that specializes in highly reactive and explosive materials and is equipped to assist environmental professionals in industry, research and development, educational institutions, hospitals, fire departments, police and government agencies (Client List) in the education, recognition and reduction of hazards associated with hazardous materials.
As reactive and explosive specialists we are available to safely neutralize or destroy unstable chemicals that are capable of a violent decomposition which could result in an injury or fatality, such as old picric acid, peroxidizable compounds, unstable nitro compounds, organic peroxides and strong or contaminated oxidizers.
We also handle many materials contained in steel cylinders which can be neutralized or transferred to another container for disposal.
home.cyberave.com /~rhr   (275 words)

  
 Global Stocks of Nuclear Explosive Materials - Table of Contents
Periodically, ISIS updates its estimates of global inventories of nuclear explosive materials.
Previous updates to that study were presented in the ISIS report The Challenges of Fissile Material Control and at various locations on the ISIS web site.
This update is a set of reports, tables, and charts that detail inventories of nuclear explosive materials throughout the world.
www.isis-online.org /global_stocks/end2003/tableofcontents.html   (443 words)

  
 Pravda.RU Chechen woman, 20, carrying explosive material, seized in Moscow
She was said to have been carrying almost 200 grams of plasticide, an explosive, on her person.
She was said to have been carrying almost 200 grams of plasticide, an explosive More details...
When reproducing our materials in whole or in part, reference to Pravda.RU should be made.
newsfromrussia.com /accidents/2004/03/06/52674.html   (1410 words)

  
 Explosive material - Wikipedia, the free encyclopedia
Low explosives undergo deflagration at rates that vary from a few centimeters per second to approximately 400 metres per second.
An oxidizer is a pure substance (molecule) that in a chemical reaction can contribute some atoms of one or more oxidizing elements, in which the fuel component of the explosive burns.
In order to assist in balancing chemical equations, an order of priorities is presented in table 12-1.
en.wikipedia.org /wiki/Explosive_material   (5565 words)

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