DandyDon:
Hello...?! Do I know you...?
I take it my response was not up to your expectaions?
I did say
So, give her the better answer... :10:
Firstly received following mail
Originally Posted by reefraff
This post was edited to remove an inappropriately rude comment.
http://www.scubaboard.com/showpost....347&postcount=4
Take is easy on the inflamatory stuff. It's not helpful and disrupts the peace.
to which I answered
Noted and apology to DandyDon, no hard feelings, had a terrible day at work that day!
Reefraff, thanks for moderating
Now to Nitrox,
many years ago there was a song in the hit parade with following lyrics by Bernadette Peters and our science teacher used ithis song as an example of the dangers of pure oxygen regarding burning and chemical reactions compared to air.
So lets sing
Anything you could do, I could do better
I can do anything better than you!
No you can't!
Yes I can!
No you can't!
Yes I can!
No you can't!
Yes I can!
Yes I can!
Anything you can be, I can be greater
Sooner or later I'm greater than you!
No you're not!
Yes I am!
No you're not!
Yes I am!
No you're not!
Yes I am!
Yes I am!
I can shoot a partridge
with a single cartridge
I can get a sparrow
With a bow and arrow
I can do most anything!
Can you bake a pie?
No!!
Neither Can I!
Any thing you can sing, I can sing Louder
I can sing anythin louder than you!
No you can't!
Yes I can!
No you can't!
Yes I can!
No you can't!
Yes I can!
No you can't!
Yes I can!
Yes I can!
Yes I can!
Yeess I Caaaaaaaaaaaaaaann!
and what has that got do do with nitrox
I can explode when I come in contact with oil,
no you can't
yes I can with a big bang
etc. etc
I can toxyfy and kill
no you can't
yes I can very quickly without warning
etc etc
not only the danger of explosions or fires due to impurities in regulator, a fire could be caused by opening the cylinder valve too fast and the first stage regulator is rapidly pressurized. This creates adiabatic compression, and can result in the sudden generation of heat inside the first stage valve, or inside the pressure gauge fitting.
Nitrox requires its own Oxygen compatible regulators all super clean and once this is connected to standard compressed air by mistake - it needs speciality cleaning no Nitrox
Then Nitrox is not Nitrox - i.e 32% or 36% each with its maximum depth of 40 and 30, and to the question of oxygen toxity and PO2 - On nitrox, the risk of an acute O2 attack may be the same or higher than the risk from nitrogen narcosis at certain depths. Remember thatreduced nitrogen narcosis is one of the benefits. The major problem with oxygen is that you may get little or no warning of an attack and your chances of surviving one are remote.
Then remember Oxygen toxicity; oxygen poisoning the human body. There are two types of oxygen toxicity; central nervous system (CNS) toxicity and pulmonary toxicity. CNS toxicity is caused by short term exposure to high oxygen partial pressures and can result in convulsions. Pulmonary toxicity is caused by longer term exposures (multiple dives) to moderate oxygen partial pressures and leads to pulmonary problems.
Starfire, I would simply explain all above and other facts and then add, because of all the added dangers, complications and responsibility to yourself and others diving with Nitrox has an age limit just as driving motor cars has an age limit
DandyDon:
So, give her the better answer... :10:
Sorry for being so verbose, but i accepted the challange