Initiating efficiency of detonators by the

Initiating Efficiency (or Strength) of Detonators by the Miniature Cartridge Test. See Vol 1, p XVtfl and R.L. Grant J.E. Tiffany, "Detonators Initiating Efficiency by the Miniature-Cartridge Test , USBurMines-TechPaper 677(1945)... 

Miniature Cartridge Test. See under "Initiating Efficiency (or Strength) of Detonators by the Miniature Cartridge Test ... 

A recent study of the sensitivity of cuprous azide to heat and impact by Singh (Ref 20) confirms earlier investigations showing that sensitivity increases with an increase in cryst size. The activation energy involved in its thermal decompn has been established as 26.3 k cal (Ref 20). In addn to heat of deton, temp develpd on exp In, work density and loading density, Wohler Martin (Refs 6 7) also report the following info with respect to the initiating efficiency of CuNsi... 

The silver salts of (I) to (IV) are white crystalline substances, sparingly soluble in water and organic solvents, but soluble in aqueous ammonia. The initiating efficiency was determined as the smallest amount of the salt needed for initiation of RDX in tubing of a number 8 detonator. The details of the procedure are reported by Avanesov [7]. The experimental values of the minimal amount increases in the following order ... 

Brisance of DADP determined by the sand test is 30.1 g (0.4 g of peroxide initiated by 0.2 g mercury fulminate) which corresponds to 63 % TNT [17]. The initiation efficiency of DADP reported by Zhukov encyclopedia is between MF and LA [18]. This however disproved by Egorshev et al. [19] who tested DADP samples from 0.1 to 0.5 g pressed at 30 MPa with RDX as secondary charge in a blasting cap tube. Even 0.5 g DADP was not able to induce detonation of RDX, unlike TATP which caused full detonation of RDX in an amount of 0.1 g in the same conditions [19]. 

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