Thermal resistance testing of standard and protective filtering military garment on the burning napalm mixture

Abstract

Fires are an accompanying manifestation in modern weaponry use and in various accidents in peacetime. The standard military uniform is a primary barrier in protection of a soldier's body from all external influences, including the thermal ones which can cause burns. The minimum thermal resistance to the effect of burning napalm mixture (BNM) in individual uniform garment materials was determined, and found to be higher for simultaneous use of more materials one over another (the so-called sandwich materials), where the best thermal protection was exhibited by sandwich materials with an air interspace. The requirement for the thermal resistance of the material of the filtrating protective suit (FPS) to the effect of BNM (≥ 15 s) was fully met. The highest thermal resistance was demonstrated by the FPS whose inner layer was made of polyurethane foam with active carbon. The FPS thermal resistance to the effect of BNM was found to be proportional to water vapor permeability through this garment mean, and inversely proportional to air permeability.

Chemical accident area reconnaissance by unmanned aircraft

“…-extremely high concentrations of TC in the hot spot of an accident (deadly for humans); -high temperatures and possibility of explosion -fire (depending on the type and characteristics of released TC), (Rajić et al, 2013); -long-term wearing of protective equipment (several hours in the case of major chemical accidents), (Jovanovic et al, 2016); -increased psychophysical stress (Karkalić et al, 2015), etc. Bearing in mind the mentioned hazards to the humans, this paper considers the possibility of using unmanned aircraft (UA) for this task.…”