Print

Print


At 09:40 22/09/99 +1000, Strike wrote:
 
>On  22 September 1999 00:05, Carl G. Heinzl, wrote:
 
>>Remember - a long  time ago a PPO2 of 3 ATA was the
>>accepted limit - then it went down to 2 ATA,
 
>I don't remember that!  (The WWII experiments established a
>maximum PPO2 of 2 ATA's for in-water use that remained a
>'standard' for thirty-plus years! ) :-)
 
That's what I recall too.  BTW, this is the reason for the 10 meters depth
limit for pure O2 rebreather diving in some navy units (according to rumors).
 
>>now the (almost universally) accepted limit for the working
>>part of a dive is 1.4 PPO2 (1.6 PPO2 for deco).
 
Strike, do you know if the navies modified O2 rebreather diving according
to the 1.4, 1.6 values?
 
 
With best regards,
 
                       Kuty