This part of ISO 11933 specifies the designations and characteristics of the various transfer systems which can be mounted on containment enclosures either used alone or placed behind a shielding wall.

These transfer systems may also be used directly on shielding walls made of metal (carbon steel or stainless steel) or of concrete.

The systems covered by this part of ISO 11933 are

• plain doors,
• airlock chambers,
• double door transfer systems,
• leaktight connections for waste drums.

Some of these systems, such as plain doors, airlock chambers or double door transfer systems can be used in addition to components defined in ISO 11933-1 or ISO 11933-2 (glove/bag ports, bungs for glove/bag ports, support rings, welded bags, etc.).

Large size doors and airlock chambers, used for personnel or large equipment, are not within the scope of this part of ISO 11933.