Abstract: For transferring products from a contaminated enclosure (12) into a second enclosure (16) without contaminating the latter, it is proposed to engage on the contaminated enclosure a transportation container (20), in which is placed an empty transfer chamber (22). After removing the coupled doors (C,F,H) of the contaminated enclosure, the container and the transfer chamber, the products to be transferred are introduced into the latter, without the space surrounding the chamber within the container communicating with the enclosure. This is followed by the reclosing of the coupled doors (C,F,H) and the disconnection of the container (20), in order to transport it and engage it on the second enclosure (16). The coupled doors (B'C', F) of said second enclosure and the container (20) are then opened in order to introduce into said second enclosure the transfer chamber (22) containing the products.

Abstract: An interchangeable member (38), such as a glove, collar or bag, is fixed in a cell flange with the aid of a supporting ring (36) formed of two sections bearing an extremity flange (50) of the member (38) and also with the aid of a safety ring (72) secured to the flange (16) and to the supporting ring (36) by two bayonet links and rotational immobilized by two blocking members (82, 78) with respect to the flange and the supporting ring. A mounting tool (100) is equipped with an indexing part (136) which makes it possible to retract the blocking members when the safety ring is mounted.