I wouldn't count on it. I read once (sorry can't remember where) that they are not good enough for storing film that's out of its metal cassette. I think at the time it said that Kodak ones were better than Ilford which definitely were not suitable. Over the years the containers might have changed.
It probably depends on the amount of light in the ambient, as well as the length of time.
I think you need to do a test.