[labnetwork] Hydrogen Purity for Furnaces

[Paolini, Steven]

Jerry,
  We have switched over to a hydrogen generator that is sized at 40% more than our consumption in a full flow, worst case scenario for future expansion. We have had very good performance over the 7 years it has been in service. We keep a cylinder piped in with check valves to carry over the duty if the generator needs service. The purity is an astonishing 6 "nines". I consider it a very good investment and time saver. You will need a DI water loop to feed it.

Steve Paolini
Principal Equipment Engineer
Harvard University Center for Nanoscale Systems
11 Oxford St.
Cambridge, MA 02138
617- 496- 9816
spaolini at cns.fas.harvard.edu
www.cns.fas.harvard.edu

From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Bowser, Jerry (Fed)
Sent: Monday, May 07, 2018 11:30 AM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Hydrogen Purity for Furnaces

Hello Everyone,

Here at NIST we are having problems with reliable and timely deliveries of hydrogen.  I would like to ask the group what hydrogen purity are you using for your oxidation furnaces and what lead times are you currently seeing?

Thanks!

*******************************************
Jerry Bowser
Assistant Manager for Operations
NanoFab Operations Group
Center for Nanoscale Science and Technology
National Institute of Standards and Technology
Phone: (301) 975-8187

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