R. Meyer J. Köhler A. Homburg Explosives

Hangfire
Hangfire
Spätzündung; explosion tardive
The detonation of an explosive charge at some non-determined time
after its normally designed firing time. This can be a dangerous
phenomenon.
Hansen Test
In this stability test, which was proposed by Hansen in 1925, 8 samples
of the material to be tested are heated up to 110 °C (230°F).
Every hour one of the, samples is taken out of the oven, extracted with
CO2-free water, and the pH of the filtrate determined. Since the
decomposition of propellants based on nitrates is usually accompanied
by the liberation of CO2, which interferes with the potentiometric
determination, the results obtained are unsatisfactory, and the
test is now hardly ever used.
HBX, HBX-1 etc.
These are pourable mixtures of TNT, Hexogen and aluminum (W Torpex)
containing phlegmatizing additives.
Heat of Combustion
Verbrennungswärme; chaleur de combustion
Unlike the heat of explosion, the heat of combustion represents the
caloric equivalent of the total combustion energy of the given substance.
It is determined in a calorimetric bomb under excess oxygen
pressure. The heat of combustion is usually employed to determine
the heat of formation.
The heat of combustion depends only on the composition of the
material and not on any other factor, such as loading density or other
factors.
Heat of Explosion
158
Explosionswärme; chaleur d’explosion
The heat of explosion of an explosive material, an explosive mixture,
gunpowder or propellant is the heat liberated during its explosive
decomposition. Its magnitude depends on the thermo-dynamic state
of the decomposition products; the data used in practical calculations
Explosives. Sixth Edition. Rudolf Meyer, Josef Köhler, Axel Homburg
Copyright © 2007 Wiley-VCH & Co. KGaA, Weinheim
ISBN: 978-3-527-31656-4