The SCU uses the N-DELETE to request the SCP to delete the Basic Film Session SOP Instance hierarchy. The SCU shall specify in the N-DELETE request primitive of the SOP Instance UID of the Basic Film Session (root).
The SCP shall delete the specified SOP Instance hierarchy.
The SCP shall not delete SOP Instances in the hierarchy as long as there are outstanding references to these SOP Instances
Note: It is beyond the scope of the Standard to specify when the SCP actually deletes SOP Instances with outstanding references.
The SCP shall return the status code of the requested SOP Instance deletion. The meaning of success, warning, and failure status codes is defined in Section H.2.5.