Hello All-
Just curious if anyone uses Airgas Research Grade 6.0 helium gas with their Bruker cryoplatforms. My understanding is that purity of 99.9999% is given w/respect to Neon contamination.
I noted, however, that Airgas specs out their Grade 6.0 with a bit more O2 (<0.5ppm vs. <0.1ppm for other vendors) and a bit more N2 (<0.5ppm vs. <0.4ppm).
Thank you,
Mary
**********************
Mary Starich, PhD
Global Solutions Network
Contractor
Magnet Facilities Mgr.
NIH/NHLBI
BLDG 50 RM 3507
50 SOUTH DR
BETHESDA, MD 20892
301-827-0811 (desk)
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Received on Thu Jul 26 2018 - 09:46:50 MST