Abstract: The invention relates to a disposable assembly for collecting contaminated waste, comprising a heat-stable container (1), for example made of metal, in order to withstand, without deformation, the conditions, particularly the temperature conditions, of a complete sterilization of its contents, and intended for household and/or industrial refuse, and forming a chamber provided with a sealable opening (2) through which the contaminated waste (3) is introduced, and a hot-melt plastic material (11) which is meltable under the conditions, particularly the temperature conditions, of sterilization, and is arranged inside the container (1), with a sufficient mass to enclose the waste (3) in the molten plastic material, the assembly additionally including a permeable cover (15), with a filter (55), sealing the opening (2) of the container (1).