Comments on: Reviewing Dalton’s Law http://precisiondiving.net/blog/reviewing-daltons-law/ Building the Next Generation of Thinking Scuba Divers Tue, 07 Feb 2012 10:36:38 +0000 hourly 1 http://wordpress.org/?v=3.3 By: Duane Johnson http://precisiondiving.net/blog/reviewing-daltons-law/comment-page-1/#comment-1663 Duane Johnson Sat, 30 Jan 2010 16:11:45 +0000 http://precisiondiving.net/blog/?p=1087#comment-1663 Hi David, It is the responsibility of the diver to always analyze his/her gas just after getting it filled and just prior to the dive. It could be dangerous if the diver believed the dive store and didn't analyze the gas. But certainly, it would make me consider going back to the dive store. Thanks for visiting. Duane Hi David,

It is the responsibility of the diver to always analyze his/her gas just after getting it filled and just prior to the dive. It could be dangerous if the diver believed the dive store and didn’t analyze the gas.

But certainly, it would make me consider going back to the dive store.

Thanks for visiting.

Duane

]]> By: David http://precisiondiving.net/blog/reviewing-daltons-law/comment-page-1/#comment-1662 David Sat, 30 Jan 2010 16:06:27 +0000 http://precisiondiving.net/blog/?p=1087#comment-1662 Another concern (besides a blender's inability to calculate basic percentages) is what are these people actually breathing when using 50/50? If the dive shop employees are correct in the ingredients, then isn't it dangerous to be calling it anything other than Nitrox 60.5? On the other hand, anyone breathing that much O2 better know what they're doing without relying on shop employees. Another concern (besides a blender’s inability to calculate basic percentages) is what are these people actually breathing when using 50/50?

If the dive shop employees are correct in the ingredients, then isn’t it dangerous to be calling it anything other than Nitrox 60.5? On the other hand, anyone breathing that much O2 better know what they’re doing without relying on shop employees.

]]> By: Duane Johnson http://precisiondiving.net/blog/reviewing-daltons-law/comment-page-1/#comment-1656 Duane Johnson Tue, 19 Jan 2010 20:36:10 +0000 http://precisiondiving.net/blog/?p=1087#comment-1656 Hi Chris, I think they were viewing it as two separate halves. One half being 50% pure O2, then the other half being air (21% O2 and 79% Nitrogen). But you are right, when you crunch the numbers, it does come out to be 60.5% Nitrox. Thanks for the catch. Duane Hi Chris,

I think they were viewing it as two separate halves. One half being 50% pure O2, then the other half being air (21% O2 and 79% Nitrogen). But you are right, when you crunch the numbers, it does come out to be 60.5% Nitrox. Thanks for the catch.

Duane

]]> By: Chris Sullivan http://precisiondiving.net/blog/reviewing-daltons-law/comment-page-1/#comment-1655 Chris Sullivan Tue, 19 Jan 2010 01:37:49 +0000 http://precisiondiving.net/blog/?p=1087#comment-1655 Duane, I don't get your math, but the dive store is wrong too. 50% O2 and 50% air would be 50% O2 + 10.5% O2 + 39.5% N2 (ignoring trace gases), otherwise known as Nitrox 60.5. You just can't add percentages like that to get 150%. Cheers, CHris Duane, I don’t get your math, but the dive store is wrong too. 50% O2 and 50% air would be 50% O2 + 10.5% O2 + 39.5% N2 (ignoring trace gases), otherwise known as Nitrox 60.5.

You just can’t add percentages like that to get 150%.

Cheers,
CHris

]]> By: Nick http://precisiondiving.net/blog/reviewing-daltons-law/comment-page-1/#comment-1652 Nick Tue, 12 Jan 2010 22:25:54 +0000 http://precisiondiving.net/blog/?p=1087#comment-1652 Your welcome for the lovely story Duane! Your welcome for the lovely story Duane!

]]>