I would say no, they were not designed to be dropped overboard. They are designed, though, to an ISO standard. That's what makes them work around the world. There are very rigid design standards. There would certainly be all kinds of load testing they would need to be subject to, and all kinds of structural limitations that would be put upon then, but in terms of that specific item, I'm not sure.
On April 7th, 2022. See this statement in context.