767 Crew Oxygen

[None]

I couldn't find a chart concerning beginning Oxygen pressure and its corresponding time available.

How much time do we have on 100% oxygen if we (3 of us) start with 1100 PSI?

[Golden Rivet]

from DDG

Oxygen bottle(s) minimum required pressure for dispatch is available in Chapter 2, Flight Planning and Performance Manual (formerly data was contained in Section 23.10, Volume III of Operations Manual).