I can’t recall how many BIM document PDFs I have downloaded over the years. There are web indexes of the indexes of the lists of standards you can access…
But here is a simple list by Ben Malone:
It looks like it might be a work in progress – there are still plenty more that could be added (and probably will be, when Ben finds the time 🙂
Note – if you click the “Open in Drive” button, you can then check all the boxes and click Download to get them all at once…
Heads-up from Dave Light:
Revit: BIM Docs!