J1M1
Guest
What grade of helium is your choice. do you splurge on research grade or go for the straight baloon grade and save some cash......or anything in between
Helium Grades
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My supplier delivers HP at 99.998, NOAA standards is 99.999, Navy standards is 99.997, so I'll save $40 and go for the HP.
T bottle (291cf) of UHP is $95, T bottle of HP is $55. I wouldn't be surprised if research grade is literally hundreds of dollars, and I bet you can't get it in large bottles because, after all, it's mostly used for callibration and you don't need hundreds of cubic feet of gas for callibration.
Roak
T bottle (291cf) of UHP is $95, T bottle of HP is $55. I wouldn't be surprised if research grade is literally hundreds of dollars, and I bet you can't get it in large bottles because, after all, it's mostly used for callibration and you don't need hundreds of cubic feet of gas for callibration.
Roak
Balloon grade is just about the only grade that you should NEVER use for diving.
Welding grade and all of the high purity grades are fine.
Welding grade and all of the high purity grades are fine.
OP
J1M1
Guest
roakey:
who is your supplier if you dont mind me asking?
chrisch
Contributor
Ballon helium includes O2 to prevent idiots asphixiating themselves from Donald Duck impressions.
Chris
Chris
We just paid $290 for a K (not T) cylinder of Research grade, also known as Chromatographic, at 99.9999 %. That price was just for the fill...we own the cylinders.roakey:
I'm afraid to price out a T cylinder.
All the best, James
$290, yikes! Drop down to HP and if you can step up to T cylinders...fdog:
As for T cylinders... At Linweld (http://www.linweld.com/), where I get my gas you can either rent cylinders, or you can put a "security deposit" on them ($225) and not pay rental. When you turn them back in, you get your security deposit back in full. You might ask your local gas company if they have a similar program.
Even though it's steeper up front, I go the security deposit route and then if I don't mix for a couple months I'm not worried about throwing away $ on rental...
Roak
Roak, my apoligies. I should have mentioned this was at work, it's calibration and flush gas for a Mass spectrum / gas chromatograph. We gotta use the expensive stuff.
Good point about the security deposit. We went with ownership since the cylinder cost was $180.
All the best, James
Good point about the security deposit. We went with ownership since the cylinder cost was $180.
All the best, James
Whew! I was thinking that PT Barnum would just looooooove youfdog:
The $225 is what in fact a T bottle would cost, so what Linweld's doing is having you pseudo "buy" the bottle.
My first bottle I "bought" in 2000, so I'm ahead of the game on rental on that one, probably breaking even on my second and out money on the other three (at this point in time).
Roak
boomx5
Contributor
Where's the best place to pick up a couple of T-bottles? I would love to have my own bottles so I wouldn't have to rent them.
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