Examples include C-4, Detasheet, and Semtex. Explosives can be thought of as energy packets that can release their energy in the microsecond time frame. DUMMY A cylindrical unit of clay, sand, or other inert material used to confine or separate explosive charges in a borehole.
DOPE Individual, dry, nonexplosive ingredients that comprise a portion of an explosive formulation.
The greater the specificity, the more certain the identification of a particular compound can be. This was quickly superseded in guns designed by the Royal Gun Factory by the French de Bange method, the basic principle of which is still in use today. These dynamites are lower in cost and less sensitive to shock and friction than straight dynamites.
Hose of not more than 2 megohms resistance over its entire length and of not less than 1, ohms per foot meets the requirements. A nuisance alarm is different from a false alarm, since in the case of a false alarm no explosive material is actually present. A special cartridge was developed for BL 9.
In the late 19th century "double common shells" were developed, lengthened so as to approach twice the standard shell weight, to carry more powder and hence increase explosive effect.
This required that the interior of shells had to be varnished, the exterior had to be painted with leadless paint and the fuze-hole had to be made of a leadless alloy. For example, in a portal that screens personnel for explosives, detection of NG on a heart patient using NG tablets would be a nuisance alarm.
They had some incendiary effect. Effective full charge[ edit ] Note: At this point the term RBL was retrospectively introduced to refer to the Armstrong breechloaders, which had a totally different breech mechanism, and since then the term BL has applied exclusively to the type of breechloader introduced from onwards using interrupted-screw breeches.
HMX has an extremely low vapour pressure and hence is very difficult to detect using any vapour sniffing technique. Common lyddite[ edit ] Later design common lyddite six-inch naval shell, four C. The standard cartridge for his gun which as a whole made up the full service charge, would consist of a central "mushroom" Cordite core and several smaller Cordite rings in bags stacked around the core like doughnuts, all tied together.
Used as a probe to look for explosives in the technique of thermal neutron activation. Sometimes refers to the stemming material itself.
Early shells had walls of the same thickness for the whole length, later shells had walls thicker at the base and thinning towards the nose.
Secondary explosives are generally less sensitive than primary explosives, but pack more explosive power. British gunpowder designations were: It is expressed as the distance through air at which a primed half-cartridge donor will detonate an unprimed half-cartridge receptor. Usually used to differentiate from vapor detection which collects and analyzes volatized molecules.
CRIMPING The act of securing a fuse cap or igniter cord connector to a section of a safety fuse by compressing the metal shell of the cap against the fuse by means of a cap crimper.
The effect of this wave decreases as distance from the point of explosion increases. The cartridge for firing the standard pound shell came ready-loaded with a red bag at the bottom containing the basic charge charge onetogether with white and blue bags laid lengthwise, as in a conventional gun charge, to make up the full service charge charge three.
In the case of the inch guns fitted to the World War I Marshal Ney-class monitors a gun was generally condemned when wear reached about 0. Terrorism Premeditated, politically motivated violence perpetrated against noncombatant targets by subnational groups or clandestine state agents, usually intended to influence an audience.
From here the gunnery officer could select targets and take the range, bearing and rates of change.Also the act of detonating the initiator.-An explosive in which the speed of reaction is slower than the speed of sound. or container specially constructed for storing explosives.-An expression of explosive density in terms of pounds of explosive per foot of charge of a specific diameter.
used to push explosive cartridges into a borehole and to. "Explosive" includes all materials that have been classified as divisiondivisiondivisionor division explosives by the United States department of transportation in its regulations and includes, but is not limited to, dynamite, black powder, pellet powders, initiating explosives, blasting caps, electric blasting caps, safety fuses, fuse igniters.
glossary of terms used in explosives and blasting Acoustical impedance.-The mathematical expression characterizing a material as to its energy transfer properties.
Explosives*Technical*Background*and*Glossary*of*Ordnance*Terms* From*Picatinny*Arsenal,*Historic*American*Engineering*Record*(HAER)*No.*NJG36()*. "HE" in British terminology initially designated only shells filled with modern "high explosive" such as Trotyl (the British term for TNT), which was being introduced when World War I began, and Amatol from Page 1 Glossary of Blasting Terms Air Blast - the airborne shock wave or acoustic transient generated by an explosion.
American Table of Distances - the quantity-distance table, prepared and approved by IME, for storage of explosive materials to determine safe distances.Download