[labnetwork] Handheld Hydrogen and Hydride (Phosphine, Germane, diborane, silane) detectors

[John D Shott]

Jim:

Good to hear from you. Even though I am no longer of the front lines, Stanford has used several of these things both for routine checks and for emergency response situations.

We have, and still use, a couple of the old Matheson 8057A units that you describe:

http://www2.mathesongas.com/pdfs/products/Model-8057A-General-Purpose-Gas-Detector.pdf

We also have a couple of the RKI Instruments multi-channel units … the RKI Eagle which is/was a 4-channel detector. Actually, the newer RKI Eagle 2 monitors up to 6 different gases when you don't know what you are sniffing for. These seems to the the detector of choice for the Fire Departments and HazMat Teams with  which I am familiar.

http://www.rkiinstruments.com/product/eagle-2/

We also have a handheld paper tape unit made by DODTec for hydrides that can detect all the way down to the TLV for Arsine … which, to my knowledge, the electrochemical cells can't do:

http://www.dodtec.com/clpx/

I'm sure there are more companies with offerings and likely more and newer models, but this should be a starting point for you.

I personally like the multi gas units … even if you think you know what you are looking for … because I want to be sniffing for as many things as possible when I don't know what I'm looking for.

Have a good weekend, John



Sent from my iPhone

On Mar 31, 2017, at 5:19 PM, James C. Sturm <sturm at Princeton.EDU<mailto:sturm at Princeton.EDU>> wrote:

I am looking for handheld detectors to “sniff” at VCR or swagelock joints for leaks of hydrogen and also for common hydrides (silane, germane, diborane, phosphine…).  The lab has a central system already, but I am looking for something to sniff at joints with after making connections and repressurizing.       (Yes we will Helium leak-check too, but this is as a followup with less likelihood of someone doing it wrong).

Many years (25?) we had a handheld unit for hydrides (about  7” x 3 “ x 1”, with a 4” long rubber sniffer port).   Probably made by Matheson but can’t seem to find anything similar from them now (although I didn’t look very hard).

Suggestions?

Thanks, Jim Sturm

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