Document MJZQE3D66yaYX86LbO3BDw9JV
FILE NAME: Union Carbide (UC) DATE: 1972 Feb 18 DOC#: UC217 DOCUMENT DESCRIPTION: Internal Report - Interim Toxicology Report
-, *` W. INTCRNAl* COfcnSSPQNDENCE-
PLAINTIFF'S Ik EXHIBIT
Union Carbide 197
W im 'G A<N'D W T A S D IV IS IO N
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Min* . Johnson ' n ' n9 & Met i s New Yor k, New Yor k
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P 0BOX573IAGARArtus Nnv KK 1430?
D# February f 8 , 1972
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The enc l os ed i s our
m andent' m e^ eaT aV T "
o s u r e " ^ I e a s ' e ' o V ^ 6^ d a t ed
"'a ilin g ,
l e g a l a p p r o v a l s f o r us t o b t a .ln t h e ne c e s s a r
use i t f o r ge ne ra l
as3"?orporU " 9a^
TM f S fn^u{ r e s and n u s t h a v e someth!
ng NOW w h i c h
Jo h n fL . Myers
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UNION CARBIDE CORPORATE Z "7
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w c discovery company
MINING & METALS DIVISION . p o B0V 579
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. ra.7iMS5.33,,
TO: Our Cus t omer s
ine e nclo sed is a nroi*
'
" q *r borne A s b ls t s " N a ? iona ?V * * ' ' 8b ' 6 from t h ! s o f f ic e Q u e s tio n s 4 Answers" As|>es*oi B! rci' C u " c i l , I 9 7 |
.u..TM o ; " : q" , P`.s:,,"tn,t " ,i
sten eop ,es
E x is 1 U 9 snd pr0 BM #(
. , eric,
P l e a s e c o n t a c t us i
problems,
or
if
you ' yo y have any spec i f i c wou,(i lik e a copy of
questions
or p a rtic u la r
any of the above.
/cvb nclosure
Research and
DEVELOPMENT
DEPARTMENT
UNI ON CARBI DE CORPORATI ON ''
MINING AND METALS DIVISION
AMS ROYAL AVE., P Q BOX S79. NIAGARA FALLS, NEW YORK j a j o j
R e c e n t ly , both governmental =
.
;
"
With immediate
has been known
?
:
an d 9* ! 6 " tha + a s b e s+os is an extreme!
i ............. -
J h f a , s e im-
f o r o v e r s ? w J l+S f o i l o w i n 9 c o n t a c t o r V| n h a ? I i U# n , a + e r i a I
present, there
TM ^ e io T ^ e V ^
' 8" C8S '
i ,, 3 . 2 ` i l i i " S ; *'>--
T h e r d i d ^ n e v ^ t h l l e s 6 9en*ral PP u I a + i o n ^ f f e c t ^ e a I th f!t>erS foUnd P O P tr e l tne p a j o ? so " " o r " 6" 1' en,' s s ! " c o n t r o l s i o O e i i I " 98- ' , y ' " atmosphere. J S " rCes ( an-oeOe eshestos e . ls s lo n t l i o tie
When i n h a l a t i o n o f s s b es + nc k . .
an in c r e a s e d o c c u r r e n c p n i . has been g r e a t enough to c a u
*
i 9 : S | 8 ; n" r ^ p c - r e bei,,no ^ s" r n T " - s ^s '
" " i i : r si ? t ; % i : F ' ; - ": ; r - ^ " - t 9 : % . ? r : T" " - -
stody "
^ a ^ a a t o s . x p o s p " " , ; J r l V T rSM S t 1c < =
s o . e t , on w o rk e rs.* * Ant , . , , kIn9 ^ ,, V " T M . r . ,
* "Airborne Asbestos" l9 ?l
National Research Counci I
* * Se I ! ko
Exposure,
VSr J5k,i ngE anCd.
Hammond and Neoplasia . " ' Churg. Asbestos
AMA 204. 1060112, 1968
~
f n r akA i
no t known and c o u l d ogens by a s b e s t o s
observe that
i nc ^uda + PS ' "'"fie r e a sons f o r t he e
Ud t r a n s P o r t a t i o n o f c i o a r + + e s y n e r 9 ,sm a r e
e rs as we^ as o th e r f a c t o r c
e " smoke c a r c i n -
; : r an
--
' . T Ce c.oirid:e d: m: he;dric a-l h i s t o r y .? . ; r i ; : TM3re ,re s s tThan 2000; I c: a s e s
s e n t i a l use t ^ b e ^ t o ^ p e d . ' " 9^ b e " 0 ' 0 9 * 8nd economy f o r , +s esu n c e r i a ? n t y ' i s dt o nn i a t h0n f a * b* s * * " I n e r l f l ^ in d u c t f US e f f e c +s
iiS
,
reform movements in the ns-* k 0 5 are long overdue As in m* +
t ,, t r o , m e use cf
9o v ernmen t s a r e e n a c t i n g
The federal rule r-aking co
.
occupational exposures fro m e oc clnat50" ^ 6 5 ' Pet relative to
stration (OSHA) ana that re Iat Ive io
"ealth a "a Safety Admln-
=nhTy ^ ^ ; ^ TM ' r ; - T ; ? r ; ^
vPe ? e ' o ! I h | - 6i n SHA n ^ e e en p er 7 , T i n " " " p r o o o ' V * s " s r SBn c V s t a n d a r d s
tanmm
bv' 0SHA " " - a n u a r y 12 1 077 ! p e r n a " " t s t a n d a r d s
pi a
-
" t i i ' k s : u ; : r r:
December 7 , I 97 | i s
:n r m
:~ j.
. -t * _
. .
, ! a 0 t a l e p a l ' " t . r a r e t a t i o n o r ^ ! ,," | i : ' " ' r a " e '' i s <
standard
,t
' 1971 ( a r t i c l e 191ia0. 9ih3aa) 's<e ta I 3e g i s t e r , Vo I . 36, N o . a maximum _ I Iowa b I e*1
*SeIikoff, Exoosure ,
f.J., E 0 .
Smok i ng end
Hammond a no J . ; Ihuro . N e o p l a s i a , j a m a 204 .
Asbestos
1060112, 1968.
- Jhreshhofd Limit Va,
t me-we,S hted average.
. u to a t o t a l of ( Exposures are not to e x ceed ^ n r <?n 8~hour
+otheaY` App1'cation 5 mi nut es p e r hour f o r
! dc 0 f ' bers per
to the p r e s c r i b e d |eve o f . e n g in e e r in g methods ?o ^ch-
S in an 8"
v, ces
the must be
a I iowab | ls ,s mandated where f e a s i b l e
worn as e TLV, a p p r o p r i a t e r e s o i r a t n r
summarized below.
e sP ,ra tr y
u S ? + " ntro1 1f t h i s does p r o t e c t i v e de-
_A I r borne Concentra*; , . .. . ( ,
8 Hour Exposure ( 71
5 max*
15 M i n u t e
Exposure r
10 max7
25 max*
50 max.
RESPIRATORY p r o t t , TM
------ R e q u i r e d Mask Tvn None Requi red
U.S. Bur. of Mines Schedule
2 I B . N e g a t i v e p r e s s u r e on
breathing. mouth.
Covers nose and
250 max. O v e r 250
500 max.
U .S. Bur. of Mines Schedule
2 IB Powered pressure.
filte r
positive
U.S. Bur. of Mines Schedule
196 Type C P o s i t i v e p r e s s u r e , a ir supplied.
T y p i c a l Mask
W i l l son Mode I I ( w ith R-520 F i I t i
and M-S-A No . 86432 w i t h T ype H, U ltra-FiIter.
( ! ) F i b e r s p e r mi ' I i t e r g r e a t e r t ha n
P e t e r m i n e d by t h e membra ne f i I ter 5 m i c r o n s in l e n g t h as TMagni f i c a t i o n (4 m i l l ; m e t e r o b j e c t method a t 400-450X '
1I lumination.
iv e ) phase c o n tra s t
( 2) 8-Hour time weighted a v e ra a e .
(3) 15 Minutes in an hour fo r up t o 5 hours
in an 8-hour day.
Reference :
" A f r i c a n N ation,, Stanca r i B r a c t , e s p ira ,ory Protection 238.2-/969"
- In addition to the
tores c o n t a in !TM ! f pra' ' i "9 h a s to i l e.!00' 8
produce
ke f i t t e d . r ? J * f * , t o s - the T U f . 6 i e m o l i tiOh of e ? r n c .
: : n e ............ ,f your employees are *
- - - r> r ?< - - - - -
Y
uu,n c , e a n ' n g .
C" " f r C 1 ' 1 9 t o ,, e e .
S t S t e ' . s t r i e , Hy g i e n e
,,
a n d S, r b n > r 8 - - i 8 0S I " ,,! y
- s e r e end
"" " a ^ ^ - ? ' i , , ' " ' f " o s f l ber.
. r e t , . , .\` i e ^ Z ; ^ - t o r
^ i he use o f f a b r i c < n * a
r" r ? i , r : r ' e" i -- -- --
are e t V, e ^ . ' ~ =
4J P r o h i b i t i n o thp =
8 , " i v M e -- -- d 9as ' h 2tn'osphere
" h i c b - * . ' S n .v s i
-
Many i n d u s t r i a l material, h,
3nd t h r e s h o l d l i m i t
i
Ve ^een l i s t e d as " 8 i r kn r .
s e t , f o r e x a m p l e , f o r _ Uf ? e s * s b l i S hed by OSHA. S t a n d * p * 0 " ! 2"1' nan +s "
Amorphous s i l i c a * * s i l i c a , s t y r e n e , mica ` a i r ' ?
have been
cubic foot
C
e ^ p l e , has a U V o ? ' tn
, C a ' dus +* e+=-
_s p e c Ia l
* - . ; ; : ; ? r ; : - lve
ise- e - ,,
...................'
r i ^Sf e
{
ChrysotJ!e asbestos is a
" S ; p; : d; r ` ; : h. e ^ ^ e r ^ t na r - ^ ' v th. nations i
obtained with ! ! ! / . C0nsum8r' that the T h r i . n ^ i ' f f - . ^ t b as an
raw m a t e r i a l s a s b e s t o ^ * <3ust c o n t r o 1 t e c h n i q u e s
/ " i * V a l u e s c a " be
J e h a n d l e d w f t h r e , p#I c ?
C* r + a i " t o i c^
ic.
' nd" * +r l i
hazard to th e c e n o r f f T' ? + fear: l t does n o t ,, L ! ha2ards and should
can p r o t e c t hn+t.
P o p u la t io n and realiti+Tt
present any real
endorses seen r . 9u , i t E ^ J ' ^ f " =. . I . T c ' l i S Co"?p" , " i ^ S