use of polystyrene nanospheres in SNF

David Gutierrez degtz at stanford.edu
Thu Jun 7 11:43:00 PDT 2007


Hi Ed,

I'm attaching the proposed process flow, and the steps at which we're
planning to use the nanospheres are highlighted in blue. Please let us know
if this is possible, and the procedure for being able to use this material.

Thank,
David

On 6/6/07, Ed Myers <edmyers at stanford.edu> wrote:
>
> David,
>
> Polystyrene spheres have been used in the facility, but where they
> are allowed is heavily regulated.  The SpecMat committee and I will
> have to see your proposed process flow before a decision can be
> made.  The process flow should include all of your process steps and
> the requested equipment.
>
> Regards,
> Ed
>
> At 10:26 PM 6/5/2007, David Gutierrez wrote:
> >I am emailing in regards to a proposed material that we plan to
> >bring into SNF during the summer. Part of the project that we will
> >be working on will involve the use of polystyrene nanospheres for
> >use during one of the process steps.
> >
> >My group members and I are wondering whether this material can be
> >allowed to be brought into SNF. I am attaching the MSDS provided by
> >the company (Duke Scientific) that describes the material.
> >
> >These polystyrine nanospheres come in 15ml containers and are in a
> >water solution. The individual polystyrene nanospheres will be in
> >the range of about 300-500nm for the purposes that we are trying to use.
> >
> >This project will be part of E342: MEMS Fabrication for the summer
> >quarter. Please contact us at your earliest convenience to determine
> >whether we can proceed with the proposed plan, or if we have to find
> >alternate solutions.
> >
> >Regards,
> >David E. Gutierrez
> >Content-Type: application/pdf; name=MSDS00106BWeb.pdf
> >X-Attachment-Id: f_f2lcpjt1
> >Content-Disposition: attachment; filename="MSDS00106BWeb.pdf"
>
>
>
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