摘要:It followed from the results of firing tests conducted with particulate grenade models under variable weather conditions in the field that the models generated a particulate aerodispersion in a cloud effective for a short time. The tested kinds of particles produced clouds of aerodispersions of similar sizes;the cloud diameters were increasing upwardly up to the 20th second after the explosive action of spreading the charge up to the value of diameter l = ~13 m in the case of Chezarb,l = ~20 m in the case of the S244 carbon fibres,l = ~22 m in the case of brass particles,and l = ~28 m in the case of aluminium particles. Particulate systems in the cloud showed good attenuating capabilities for a short time in the whole IR range of spectrum. The tests proved that their application in the multispectral protection of military objects is desirable.