Flex. endoscope steris

Following Peracetic sterilization in a Steris 1, how long can an endoscope remain in it's container after removing it from Steris, without removing the lid. To follow cases may or may not use it, so the scope can sometimes remain in the container until end of day. I just got info. at a seminar this weekend that 2 hours should be the turnaround time before reprossesing it again. Any comments?