Sensitivity of explosives

Fall hammer test. A test of the sensitiveness of explosives to impact using a weight which falls vertically (see p. 69). [Pg.198]

Transition of combstn to deflgrn in expls. Combstn of powdered expls at high constant pressures) 11) J. Eadie, "The Effect of Wax on the Shock Sensitivity of Explosive Compacts , 4thONRSympDeton(l965), 399-403 12) J.E. Hay et al, "The Effect of Physical and Chemical Properties on the Sensitivity of Liquid Explosives , 4thONRSympDeton... [Pg.216]

Sensitivity (Sensitiveness) of Explosives, Propellants and Pyrotechnic Compositions,... [Pg.307]

F.W. Brown et al, Sensitivity of Explosives to Initiation by Electrostatic Discharges , USBurMines RI (Report of Investigation) 3852 (1946)... [Pg.312]

Andrej Ma ek, "Sensitivity of Explosives , ChemRevs 62, 41-63(1962). "The sensitivity of an explosive can be defined as the minimum amount of energy that must be imparted to the explosive, within limited time and space, to initiate explosive decomposition (p 60). This definition can serve as a basis of quantitative fundamental treatments provided the imparted energy is thermal and provided its initial distribution in time and space is known. If the energy is not supplied directly as heat, but by mechanical means (such as a shock), there is the additional requirement of quantitative assessment of conversion of the stimulus into heat (p60)... [Pg.320]

Detonation, Heat Sensitization of Explosives and Memory Effect. It has been known for some time that certain expls exhibit a... [Pg.367]

Initiation is not an instantaneous process, but a few microseconds always elapse between the impulse and detonation or explosion. This delay of initiation, known as induction period, depends on the sensitivity of explosives and varies greatly. For example, when the following expls were initiated at the US Bur Mines from an identical source, the induction period of PETN was 5 microseconds, of RDX 10, Tetryl 15 and TNT failed to detonate... [Pg.394]

Accdg to MaSek (Ref 13, p 41), the practical problem of sensitivity of explosives can be viewed as one of reliability and of safety. This means that an explosive must be detonable reliably whenever necessary and it must not explode accidentally. The need to know how to detonate expls when and only when desired is tantamount to the need of knowledge of their behavior under all effects of externally imposed physical conditions, and this is of exceedingly large scope. Of direct interest, however, are only those conditions which may normally be encountered in practice... [Pg.511]

Shekhter (1959), 22-80 (Chuvstvitel nost vzryvchatykh veshchestv)(Sensitivity of explosives) 11) S.D. Stein, Quantitative Study of Parameters Affecting Bullet Sensitivity of Explosives , PA FREL TR 2636(Sept 1959) 11a) Andreev Belyaev... [Pg.515]

Detonation, Susceptibility to. Susceptibility of expls and proplnts to detonation can be derived by consulting the following items "Detonation (and Explosion), Initiation and "Detonation, Sensitivity of Explosives to . See also "Investigation of Susceptibility to Detonation of Propellants , by C.M. Mason et al, PBRept 152022 (1958), 25 pp, USDept of Commerce, Ofc of Tech Services CA 58, 12361-62 (1963)... [Pg.582]

Under adiabatic decomposition. Cook (Ref 8, p 178) states that F.P. Bowden et al E.K. Rideal A.J.B. Robertson J.L. Copp, A. Yoffe and their coworkers (See Refs listed on pp 42-3 of Cook s book) have made outstanding contributions to the knowledge of the sensitiveness of explosives. Their preliminary investigation showed that all types of sensitivity measurements may be understood in terms of thermal decomposition and laws of adiabatic decomposition. Moreover, they developed A B data for equation ... [Pg.620]

A.R. Ubbelohde, Research (London) 3, 207-12(1950), "Activation Processes in the Sensitiveness of Explosives (For primary expls, the process which "triggers energy release may involve thermal or tribo-chemical activation of the molecules)... [Pg.1041]

There is a great deal of evidence that most explosive sensitivity phenomena are understandable in terms of the thermal decomposition of the explosive involved. Some of the early work on the interpretation of impact and friction sensitivity of explosives in terms of thermal effects is excellently summarized by Bowden Yoffe (Ref 1). More recent studies which also include investigations of irradiation of explosives by nuclear particles and ionizing radiations are also reviewed by these authors (Ref 2), and by Bowden (Ref 7)... [Pg.170]

It is common knowledge that a blow (impact) can initiate explosion in certain substances usually referred to as explosives. Aside from superficial statements, such as the one above, the subject of impact initiation (also called impact sensitivity) of explosives has been shrouded in myth, confusion misinformation. Until recently, more time money has been invested, with less return on the investment, in studying impact sensitivity than any other aspects of explosion sensitivity. This was most aptly stated in the following quotation (Ref 4)... [Pg.299]

Initiation by Shock will be described in detail under Shock Sensitivity. Some of the tests for determining the shock sensitivity of explosives have already been given under Detonation (and Explosion) Experimental Procedures in Vol 4, pp D318-321, pp D322-331 D344. Some preliminary discussion of shock initiation is also given in Vol 4, pp D520-522... [Pg.372]

OP) J. McCormack et al, "A New Procedure for the Estimation of the Impact Sensitiveness of Explosives , Explosivstoffe 17(10), 225—28(1969). Abstracted in Expls Pyrots 3(8), 1970 (Measurement of the Figure of In sensitiveness for relatively insensitive expls by the drop weight method is improved by detecting gas evolved in "no-fires" with starch-iodide impregnated filter paper. Quantities of gas less than 1 cc are readily detected)... [Pg.353]

QR) M. Cruchaud, "On the Sensitivity of Explosives to Mechanical Effects", Explosivstoffe 18(1), 16—19(1970) (in French). Abstracted in ExpIs Pyrot 3(8), 1970 (Various theories attempting to explain the initiation of expls by a falling weight are briefly presented along with refs to reported expins... [Pg.353]

See also Vol 5, p E38-L ff, "Electrostatic Discharges and Sensitivity of Explosives to Initiation by Them ... [Pg.418]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...