Emergency tank: 4 minutes (down from 12)
Extended Etank: 9 minutes (down from 37)
Double Etank : 15 minutes (down from 62)
Full tank : 31 minutes (down from 94)
This will make it so EVA crews actually need to watch their pressure if they spend significant time outside the station, and/or have a canister in their general vicinity.
Emergency tanks can no longer be used on timescales that far exceed escaping an emergency situation, but will probably be insufficient in extended emergencies, where access to canisters will now be much more important. How well this works in practice will have to be carefully watched.
