Document xG8vaqykxO6o7xzz5VwgJx9m
FILE NAME Talc TALC
DATE 1974 Jan 16
DOC TALC462 DOCUMENT DESCRIPTION Letter to M from The BF Goodrich Co.
BFGoodrich
500 500 SOU TR
MAIN
The B. F. Goodrich
TREET AKA ON H
Company
7
ADDRESS REPLY TO DEPT 2050 ALoc.28 January 16 1974
Mr. W.H. Cooper
Director Environmental
Manville
Greenwood Plaza Denver Colorado
.
80217
Affairs
Dear Mr. Cooper ae -
oo
and
January 15 1974 concerning asbestos
I attended the meeting in Cleveland on
Medical Facts Asbestos
the related health hazards
The The first topic
show that airborne asbestos fibers
included several slides which were intended to
the risk of disease Since
did it iincnluded amounts of less thanthan 5 fibers not oinnecro eafsethe slides was impossible
there
was
only
a
few minutes
to
look
at
any
which
the
speaker was
drawing
This |
to really be convinced of the conclusions
which showed more deaths than
difficulty was increased by one
slide in particular
Dr.
Selikoff
The speakers
at participants in a studoyf insulation wocroknetrrsadibcytion was all all definitive
answer
to
a
question
about
the
apparent answer
period
referred
to
Selikoff
in
an
facts Also Mr. Solon in the question and
in headlines than medical
- uncomplimentary
way as
being
more
interested misrepresented
does not
seem
unreasonable
The suspicion that Selikoff's data was
from which the slides were taken or oe
of the papers
the
ne
Would you send either copies
;
.
ask ae
a bibliography to me
the the presence of
There is anotheranother question which I would oflikeenvitoronmentcaolncearfnfianigrs at at Goodrich sent
asbestos fibers in tale The director
talcs contaminated with asbestos
to proposed regulation concerning concerning
of a reference
Can we do this
I sent for a copy the 1973 pp 27076-27081 which
fibers to me with the question
Friday Sept. 28
in
Federal Register Vol 38 No. 188
is the specific specific section
121.2006 contained the proposal Paragraph
section
question
least me procedure where
at to describes a rather unbelievable
refractive indices
describes This paragraph
milligram samples of of
talc are mixed with oils of appropriate examined with a polarizing microscope
and
all particles
and
These preparations are
three or more
being at
least five microns in asbestos
length
with aspect ratios of refractive index are counted as
having the appropriate
of asbestos fibers
| ^ count of not more more than 1000 amphaisbboelsetostypfeisbers per milligram -
and not more than 100 chrysotile chrysotile
slide constitutes the maximum
one
Would you comment on this proposal
Sincerely
The B.F. Goodrich Company
R.
.
R. Lindesmith
... pursuit Microscopy Laboratory
of exclenc
of excellence
CRMC