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Diving Physics: Discuss Helium Balloons... in the Training Area forums: It doesn't. It's air and helium, so it can't possibly contain 21% oxygen. I can see what you mean so ...

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  #11 (permalink)  
Old 18-11-07, 06:18 AM
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Quote:
Originally Posted by ak101
It doesn't. It's air and helium, so it can't possibly contain 21% oxygen.

I can see what you mean so I stand corrected
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  #12 (permalink)  
Old 18-11-07, 09:04 AM
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Sooooooooooo, what we're saying is that it's a premix of some sort - but a Trimix nevertheless. Maybe a 16/ 55 - something like that (?)

hhhhmmmmmmmmmmmmmm. Worth analysing?
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Old 18-11-07, 02:44 PM
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Definitely. Anyone having a party soon?
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  #14 (permalink)  
Old 18-11-07, 04:38 PM
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Balloons filled with 15/55 float well. I tried it last week for a birthday party.
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Old 18-11-07, 04:42 PM
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I found that 45% helium just about kept a normal rubber balloon bouyant as long as it was fully inflated.
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Old 18-11-07, 05:11 PM
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Quote:
Originally Posted by big_si
The BOC Safety Data Sheet just says that it contains Helium and Air....

However in the hazards....

Never deliberately inhale Balloon gas
Breathing 100% balloon gas will produce unconsciousness and death due to lack of oxygen




Yea just ask these twos families
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Old 18-11-07, 05:20 PM
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  #18 (permalink)  
Old 18-11-07, 06:11 PM
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Ballon gas is a He & Air mix. Not sure what the mix is - 10/52 maybe?
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  #19 (permalink)  
Old 18-11-07, 10:13 PM
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Just wondering... If I get some of these party balloons and put them in a great big bag along with my kit, will I have a lighter bag at airport check-in?
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Old 18-11-07, 10:17 PM
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sounds like somebody with an analyser needs to order one of these babies...

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