[big_si]

Ok, I was wandering and wondering around a 'party shop' earlier with helium filled balloons everywhere, bumping into my face... nice...

Whilst daydreaming about diving I wondered....

These balloons are filled with 100% helium (I'm assuming??)

So... How much He in a mix would you get away with and the balloon still be positively buoyant in air? Could you get away with some 18/45 or would you need something stronger?

 

[Woz]

You are missing the point. How much is a J of balloon He and is it all He or does it have something else in it?

 

[big_si]

If there's few enough impurities it might be some ready mixed back gas! Ooooooo

 

[colinicky]

Balloon He contains atleast 21% O2 just in case silly kids (my daughter) breath it to get squeaky voices !

 

[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

 

[mark w]

silly kids !

oopps, better count me amongst those then.

 

[paramedic paul]

I know a song that'll get on your nerves
Get on your nerves
Get on your nerves!
:teeth: :teeth: :teeth: :teeth: :teeth:

 

[DanE]

28/10 does not contain enough helium to make balloons float awal

dan

 

[Robski]

I've always been thoroughly under the impression that balloon gas had at least 16% O2 in it 'for the obvious reason', but during a recent visit to a big distributor of all sort of gases, the site manager swore blind that all the balloon gas they sold (and it was a lot) was pure, unadulterated He.
The really sad thing is that I was there to commission a brand new security system, so am horribly aware how difficult it is to steal any of those lovely pallet-loads of J's brimming with lovely 100% Helium that are dotted around the place.

Sigh.

 

[ak101]

Balloon He contains atleast 21% O2 just in case silly kids (my daughter) breath it to get squeaky voices !

It doesn't. It's air and helium, so it can't possibly contain 21% oxygen.

 

[colinicky]

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 :redface:

 

[pieater]

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?

 

[Woz]

Definitely. Anyone having a party soon?

 

[Bob Cooper]

Balloons filled with 15/55 float well. I tried it last week for a birthday party.

 

[zepp]

I found that 45% helium just about kept a normal rubber balloon bouyant as long as it was fully inflated.

 

[balbrigganbloke]

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
2006 Darwin Award: High on Life

 

[DecoWarrior]

YouTube - Helium Analyser - Diving

 

[ardhill]

Ballon gas is a He & Air mix. Not sure what the mix is - 10/52 maybe?

 

[steve2056]

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? :wink:

 

[StuartC]

sounds like somebody with an analyser needs to order one of these babies...