Document ID: EPA-HQ-OAR-2003-0161-0089
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-10-21T04:00Z

From:
Farmer,
Mark
[
mailto:
Mark.
Farmer@
am.
sony.
com]
Sent:
Thursday,
March
20,
2003
10:
13
AM
To:
'
Reeves,
David'
Subject:
RE:
Enclosure
in
Word
Dave,

Sorry
for
the
delay;
have
been
out
of
the
office.

1)
We
actually
use
metallic
cobalt
in
one
of
our
processes.
We
are
producing
Advanced
Metal
Evaporated
(
AME)
tape
for
high
data
storage.
The
process
involves
the
vaporization
of
cobalt
under
a
vacuum
and
depositing
it
onto
a
plastic
film.
There
are
very
few
emissions
from
the
process;
we
do
have
baghouses
that
collect
cobalt
dust
from
the
cleaning
of
parts
and
equipment.
2)
We
also
use
some
cobalt
doped
iron
oxide
powder
(~
3
wt%)
in
our
conventional
coating
process;
there
are
some
fugitives
from
this.

Both
processes
do
not
result
in
emissions
outside
the
buildings
where
the
process
resides;
in
reality,
any
dust
generated
settles
very
quickly
and
more
of
a
housekeeping
issue
then
anything
else.

Hope
this
answers
your
questions.

Thanks,

Mark