R. Meyer J. Köhler A. Homburg Explosives

Nobelit
Nitrourea is soluble in benzene, ether, and chloroform; it is decomposed
by water.
It is synthesized by dehydration of urea nitrate with sulfuric acid.
Nobelit ®
Registered trademark for water-in-oil emulsion explosives manufactured
and distributed by Orica Germany GmbH. Outstanding features
of this non-Ngl explosives generation are complete water-resistance,
safe handling, long shelf life, drastic reduction of toxic fumes and
excellent performance marked by high detonating velocities of up to
6000 m/sec. (19000 ft/sec.). Nobelit ® series 100, 200 and 300 are
available as pumpable and packaged blasting agents and in capsensitive
cartridges from 25 mm diameter and upward.
No-Fire Current
Grenz-Stromstärke; intensite de courant de non-allumage
Maximum current that can be continuously applied to bridgewire circuit
without igniting prime material (Note: Continued applications of this
current may degrade prime and “dud” the unit).
Non-electric Delay Device
Detonationsverzögerer; detonateur avec retard
A detonator with an integral delay element used in conjunction with,
and capable of being initiated by, a detonating impulse.
Nonel
236
Trade name of a new “non electric device” for the firing of explosive
charges. The basic unit consists, of detonating cords of a plastic hose
(3 mm P), the inner wall of which is coated with a thin layer of
explosive instead of electrical wires. A shock wave initiated by a
special initiator passes through the tube with a speed of approx. 2000
m/s. The spectator observes this shock wave process as a flash in the
hose. The plastic tube is not destroyed by the shock.
In order to initiative a charge, the Nonel line must be combined with a
conventional detonator. Branching is possible.
The device is distributed by NITRO NOBEL, Sweden; and DYNO,
Norway. Its applications are of interest in electrically endangered areas
(e.g., by thunderstorms and stray currents).