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Hi!

Use something intended for vacuum!  Glass or metal will probably do, but what
kind of chemicals might be drawn into the flask?  Water can freeze at low
pressure and collect.  Make sure that the pump oil can be changed safely!

Regards,
Sophie
____________________________________________________
Sophie M. K. Brunet, Ph. D.
Research Officer
Optical Spectroscopy, Laser Systems and Applications
Chemistry 112 sessional lecturer
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306-966-1719 (office)   306-966-1702 (fax)
____________________________________________________
Saskatchewan Structural Sciences Centre
University of Saskatchewan
Thorvaldson Bldg.
110 Science Place
Saskatoon, Sk   S7N 5C9
____________________________________________________


Quoting Craig Brideau <[log in to unmask]>:

> Search the CONFOCAL archive at
> http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
> What can I use for the buffer tank?  Is there a particular style, or can I
> just stick any old pressure tank on the line and draw a vacuum reservoir on
> it?
>
> Thanks,
>
> Craig
>
>
> On Tue, Mar 4, 2008 at 1:36 AM, Guy Cox <[log in to unmask]> wrote:
>
> > Search the CONFOCAL archive at
> > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal  Craig,
> >
> >              The first thing you should be looking at is a big buffer
> > tank to even out the fluctuations.  Having a lower Torr than you
> > need will do very little for you - the difference in the total mass
> > of air in a chamber at 0.1T vs 1T is tiny.  The displacement is
> > the key thing - it must be able to handle everyone wanting it at
> > once.
> >
> >                                                                        Guy
> >
> >  Optical Imaging Techniques in Cell Biology
> > by Guy Cox    CRC Press / Taylor & Francis
> >      http://www.guycox.com/optical.htm
> > ______________________________________________
> > Associate Professor Guy Cox, MA, DPhil(Oxon)
> > Electron Microscope Unit, Madsen Building F09,
> > University of Sydney, NSW 2006
> > ______________________________________________
> > Phone +61 2 9351 3176     Fax +61 2 9351 7682
> > Mobile 0413 281 861
> > ______________________________________________
> >
>
http://www.guycox.net<https://www.mcws.usyd.edu.au/exchweb/bin/redir.asp?URL=https://www.mcws.usyd.edu.au/exchweb/bin/redir.asp?URL=http://www.guycox.net>
> >
> > ------------------------------
> > *From:* Confocal Microscopy List on behalf of Craig Brideau
> > *Sent:* Tue 08/03/04 8:38 AM
> > *To:* [log in to unmask]
> > *Subject:* Vacuum pump advice?
> >
> > Search the CONFOCAL archive at
> > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal We are setting up
> > a new lab section and we need to select a vacuum pump to hook up to our
> > vacuum plumbing.  We have a large manifold system that ties multiple vacuum
> > taps together into one central location.  We plan on using a single pump to
> > provide for the whole lab.  My concern is in vacuum stability as users open
> > and close the tap, as well as capacity.  Should I be looking for a pump
> with
> > a strong vacuum draw (low Torr number), or large displacement
> > (liters/minute)?
> >
> > Thanks,
> >
> > Craig
> >
>