Used in initiation systems.Īnother term that may be used to describe an EEDĪ mechanical device actuated by a contained or inserted propellant charge.Ī quantity of explosive loaded in an explosive deviceĪ fixed-volume chamber used far testing the pressure-time characteristics of gas generators, cartridges or combustible materials. CĪn explosively powered device that cuts a cable upon the receipt of a firing stimulus.Ī resistive element consisting of two electrical conductors bridged with a thin spot of colloidal graphite. The highest drop provided is 100 cm, so sensitivity may be given as 100±, meaning that at 100 cm no explosion resulted.Ī rapid evolution of energy through chemical reaction between a fuel and an oxidizing agent.Īn increment of explosive material that is applied in a paste form and dried in place. The figure representing the lowest height in centimeters at which at least one of ten trials results in explosion is the sensitivity index. A small sample of the explosive is placed between two hardened steel plates, and a weight is dropped on the upper plate. Used in connection with packaging, storage or transportation.Ī test for determining the impact sensitivity of an explosive. The mass per unit volume of a bulk material such as grain, cement, coal. In this test, the level of variable applied depends on the results of the previous test.
This approach includes estimates of mean ignition stimulus levels, standard deviations, all-fire and no-fire ratings. (2) An auxiliary propulsion system to aid the early launching phase of a missile.Īn explosive charge downstream of the first element of an explosive train that is used to cause ignition or detonation of a main explosive charge or to increase the energy output to the end item.Ī relatively fine resistance wire incorporated into an ignition element attached to the electrical leads of an electro-explosive device (EED).Ī statistical analysis approach to the problem of determining, as economically as possible, the behavior characteristics of explosive components by using a limited number of samples to determine a reliability factor. (1) A high-explosive device used to transfer the detonation from the detonator to the main explosive charge. Initiation can be electric or non-electric. They come in various sizes (strengths) and can incorporate a delay. It is easily ignited and burns consistently at low pressures.ĭetonators specifically designed and produced in high volume far commercial blast- ing operations. Binders usually are resins, plastics, asphaltics, or hard waxes used dry or in solution.Ī low explosive consisting of an intimate mixture of potassium or sodium nitrate, charcoal, and sulfur. BĪn instrument used for measuring the velocity of a projectile or the output of a cartridge or explosive charge.Ĭompositions that hold together a charge of finely divided particles and increase the mechanical strength of plugs or pellets of these particles when consolidated under pressure. The arithmetic mean (statistical average) of the rate at which a pyrotechnic or propellant will burn at specific pressures and temperatures. To prepare an explosive item for imminent use by removing safing mechanisms. Refers to the end item use of an explosive system, e.g., the space vehicle separation system, deployable mechanism, etc. The ratio of mass to volume of a finely powdered material, under stated conditions, which is always less than true density. Surrounding meteorological conditions such as temperature, humidity and pressure. The lowest level of energy which results in initiation of a first element within a specific reliability and confidence level as determined by test and analysis
Minimum stimulus which must be applied to a device for it to reliably function. Types of actuators include bellows, dimple, piston and retractable. An acceptor is also known as a receptor.Ī mechanical device that transforms chemical energy into mechanical motion to perform work against an external load. A nominal value expressed as a percentage defective per hundred units, used to identify a group of sampling plans.Īn explosive element that receives a detonating impulse from a previously exploded element, called a donor, and serves to propagate the detonation.
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