Re: external impurity analysis

[Bernhard Lauss <lauss@berkeley.edu>]

Dear Peter,

I am not sure if I will have time to summarize much in an Elog tomorrow,
therefore I reply right now.

The small blue bottles I bought are hardly enough to do an
aalysis and therfore they succeded only with 1 bottle
(coontent was 300 ccm at 10 bar = 3 liters)
10 liters would be much better,
simply the more the better,

if I remember out of my head correctly , they had
an accuracy of better than 5 ppb for
n2, o2, NMCH, CH4 and Ar, but I will check that again.

most important, that you send off the hydrogen bottle immediately
after filling if you decide to do that check.
the last time everything took tooo long.
therfore the bottle had mostly air inside.
prepare the shipping immediatley already before the
sample taking.
more later.

		Bernhard





*******************************************************************
Bernhard Lauss                 E-Mail: lauss@socrates.berkeley.edu
Physics Department
366 LeConte Hall
University of California @ Berkeley
Berkeley, CA 94720                             Tel: (510)-642 4057
United States                                  Fax: (510)-643 8497
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On Mon, 5 Jun 2006, Peter Kammel wrote:

> Dear Bernhard,
>
> Probably Fred has contacted you already. Could you be so
> kind to summarize in an elog, how many liters we need
> for the external analysis in your labs and which
> impurities they can detect. Please refer us to your
> earlier elogs and reports on this topic.
>
> Wednesday morning is our last chance to take a sample for the
> clean fill of run 10.
>
> Many thanks
>
> Peter
>
>