There is no minimum interval. A dive directly from 70 fsw for 29 minuts can immediately be followed to a dive to 50 fsw for 39 mins, and would be classed as a "Combined Dive"
To calculate decompression from this Combined Dive, is by taking the depest depth, (70 fsw), and total time (68 mins), and decompress on an appropriate table.
Using the USN repetitive dive times, this varies on the residual nitrogen remaining in solution.
Q
00:04 ~your welcome :/
0:04
the answer is 00:28
1 hour and 45 minutes
00:04 ~your welcome :/
2 hours 29minutes
k
0:04
The address of the Surface Interval is: 121 Liston Road - Otway, Beaufort, NC 28516-7270
Minimum is an empty word in these circumstances, but bikes has quite little surface contact due to their narrow tires.
a sphere