an adapter device for the contamination - free removal of a material from a container , wherein the adapter device has a base body which can be connected to the container in a sealing fashion via an open section while surrounding a closure of the container , wherein the base body has two intrusions by way of which the material present in the container can be accessed without coming into contact with the material , and at least one additional intrusion into which the sample taken via the intrusion may be guided , and wherein the adapter device is made of a textile or plastic material , for example , a film that is able to be tied - off and separated .