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I will not be able to make it to DEMA this year for the meeting on the OSHA Variance. Therefore; I am putting this out to give a place to start kicking ideas for a properly worded variance. This does not include any Rebreather info. The variance makes several reverences to the NOAH Diving manual. If OSHA puts faith in the NOAH Diving Manual, then parts of the variance should be changed to reflect what is in the NOAH Diving Manual. So I go to Boarders to buy the NOAH diving manual this weekend $600+ and it has to be ordered. Ahhhhhhhhhhh That�s OK, the Navy diving manual is $900+. 1. Start with the PPO2 exposure limits. The variance states 1.4 ATA Max exposure, but does not state the Max 24 hour exposure for 1.4 ATA. How about putting the NOAH PPO2 Exposure table? Then there is the issue with FO2 The variance gives 40% Max FO2. What about 50/50, 80/20 and 100%. By using the NOAH PPO2 exposure instead of Max FO2, we can get the other mixes in. 2. The variance states 130 FSW for Max dept. Instead of putting in the Max dept, how about a Max PPN2. So lets see, do we want to start with END of 170 FSW (let the fun begin.) This will give an opening for letting H2 into the Variance. Dial that back if you want, the point is to get H2 in. Does the NOAH diving manual have reverences to PPH2 exposures outside of HPNS? If not, does DAN have stats and recommendations on exposures? What about other inert gases? 3. No stop decompression diving and Recompression facilities. Does DAN have the safety stats on staged decompression diving? If so use that to extend the 5min to Recompression. O2 on board the dive boat + in water Recompression + a fast Coast Guard Helo ride to Recompression. What do you guys think? Do we want to bring up in water Recompression? The Navy has it, I don't know about NOAH. Well, I just wanted to kick in my 2 cents. And keep the flames to a minimum, intelligent comments and criticism always welcome. Thanks Robert P. Lockard =============================================================== rlockard@ho*.co* (preferred) lockardr@ao*.co* (full of spam) 540.898.3632 (home office) 540.842.6343 (cell) 202.685.1629 (work site) "Life is a daring adventure or nothing at all." Helen Keller ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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