http://www.kodak.com/global/en/professional/support/techPubs/f4017/f4017.jhtml#large-tank%20processing%20(1/2-%20to%203%201/2-gallon%20tank)rolls%20and%20sheets
Dear Morten, Dear Sean,
Kodak is talking about 9' 3/4 small tank and 11' large tank. For D76, at 400 ISO
Here with a modern 50mm 1.8 lens, in 400 ml solution (200ml ID+200ml H2O), with the film pre-soaked, in a Paterson tank, every 30" the calibration gave good results with 7'30"" to 8' minutes, off course film rated at 250.
I can give you to-morrow the density figures, if you want.
I'm looking forward for your further findings.
fred