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Howie,
Cole Parmer has a really slick compact vacuum manometer (0-1400 mb)
for about $900USD. It can be attached to a line with UltraTorr
fittings. It runs on a rechargeable battery so there are no cables
hanging everywhere. We've had one for about 4 years with no troubles.
Len
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From: Howie Spero[SMTP:[log in to unmask]]
Sent: Friday, March 21, 1997 5:59 PM
To: [log in to unmask]
Subject: reference material and manometer source question
To Whomever can help:
I've got a couple of quick questions.
First, can anyone tell me what the current accepted values are for
the NIST nitrogen isotope stds N2 and N3? If you have a reference,
that
would really help.
Second question. I am looking for a good digital manometer to
attach to a vacuum extraction line. We want to be able to calibrate
the
manometer to calculate gas yields off samples. Can anyone recommend a
manufacturer and transducer/gauge assembly that has provided them with
good
service through the years?
Thanks for you help.
Howie Spero
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* Dr. Howard J. Spero * *
* Associate Professor * e-mail:
[log in to unmask] *
* Department of Geology * Office: (916) 752-3307
*
* University of California * Lab: (916) 752-3311
*
* Davis CA 95616-8605 USA * FAX: (916) 752-0951
*
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