Document 4aQ92Gq40nJNXrpYjqNo9ox6x
FILE NAME Talc TALC DATE 1971 Sept 15
DOC TALC426
DOCUMENT DESCRIPTION Letter to Desert Minerals Inc. from American Conference of Govt Industrial Hygienists
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September 15 1971
Mr. E. J. Ellsworth President
\ Desert Minerals Inc.
American Mineral Company - 1891 South Coast Highway
oo 7
:
Laguna Beach California 92651
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Dear Mr. Ellsworth |
is forms 8 in This
in
response
to
your
letter
of September
in which
you
question of the
whether the TLVs for Che two different
of TALC are now a part
me
Rules and Regulations of
the Department of August
Labor 13
as set forth
the
Federal Register Volume 36
3 Mineral Reference to Table
15104 --
Dust page
Mineral
of the cited Federal
of the | Register volume shows TREMOLITE with a standard of 5 million particles per
cubic foot and talc to be mppcf This is not in conformity with the
recommended
values
TLVCommitatseseet
in the TLVs forth forth
asbestos
for
1970
j
In which the TLV for fibrous talc is pegged to the asbestos limit which
per than 5 has now beenmodified to be 5fibers mlgreatme icrr ons in
length. ~
which In
regard toprothv e boi okled t one the d TLVs follow 1970. call the TLVs as request discrepancy attention the
modify
of this other discrepancies in conformity with that they modify
dard
is
Department
Department of Labor this
todiscrepancies
.
this discrepancies
1970.
for
conformity
sugear
We
with the
.
the
the recom- .
mendations of the TLV Committee -
As to the statuosf the TLV Committeoef the ACGIH this body has served
' for more than a quarter quarter of a centuarsy purely recommendatory group With
of the passage of the Occupational Health and Safety Act the Department
Labor waa | ected to set standards for Airborne Substances in Workplaces
and to reace compliance thus the recommendatiofonthse TLVthe
Committee when accepted by the Department of Labor and published in the
Federal
Register
,
now become
enforceable
standards How the Modus
TLV Committee
of
has
operated
is
describeidn
the
accompanying reprint Modus
Operandi
the
|
of ACGIH I Threshold Limits Committee am also enclosing a copy of
TLV8
for 1970 for your information
2 EES,
.
Sa Sincerely
Stokinger
Stokinger ' CRMC