Dave,

I don't think it matters, but you might ask someone else that does fine leak testing, like Oneida Labs, etc for another opinion.

As I recall, ours were just the 'normal' cylinders we would get from the gas supply company.

Steve C

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of David Hillman
Sent: Wednesday, February 25, 2015 7:06 PM
To: [log in to unmask]
Subject: [TN] Helium Quality Test Influence Question

Hi gang - hey, need some quick assistance. Does anyone know if using "commercial" grade He instead of "analytical" grade He would cause an issue in helium leak testing? I think I know the answer but looking for a sanity check.

Dave Hillman
Rockwell Collins
[log in to unmask]


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