Document Z8p4vm5b1qMGoXL1GapQkYwG7
FILE NAME: DuPont (DUP)
DATE: 0000
DOC#: DUP057
DOCUMENT DESCRIPTION: Report - 1968 Notice of Intent - Committee on Threshold Limits of the American Conference of Governmental Industrual Hygienists
COMMITTEE ON THRESHOLD LIMI-iS
AMERICAS CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYG IEN IST S
This Notice of Intent * 6
p r i n c i p a l l y , but other
1 9 6 8 NOTICE OF
, , . i. j heve
* prior to
INTENT
' < ri r5u e t r v - c onnfi c t e d i n d i v i d u a l s o p p o r t u n i t y to h el p shape the it s recommendations of tentative
i:
. J . - , ;r
'
. . ..
T h i s N o t i c e i s n o t b i n d i n g on
m __ < f t e e t o p l a c e a l l s u b s t a n c e s l i s t u c r _ , t r i c t t he C o m m i t t e e t o t h e s e sub-
belou in the 1965 E d i t i o n , nor do > I * ' " `
received folloving
stances; . . b . t . n c . . with .p p F .p r i .t . > ! . t th,
Cemm.it t e e meet
s' ' p u b l i c e 11 on o f th
Edgier.
l..g for i n c l u s i o n in the 1966 - - 1
This Notice in d ic a te s only those C o n t i t t e s . D o c u c t n t a 1 1 on
value.
uA H c o mme n t s s h o u l d T e a c h
n - . H e r b e r t E . S t o /k. mc i gn ^e r , C i n c i n n a t i , Ohio A5202.
l t he C
1t h* Se r i c e ^ 10 H Br oa dwa y,
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iunffno-r nmiattiioo nn c a y bue s e n t t,o _t he
I f ^ e r e ;^ * . l t h Dcte \ Dr. R . T . P. de ^ r e -
' i n U r n ^ u : t r f e r b g i = n e CFUo u ; d a = i o n , * 4 0 0 F i f t h ' A v e . , F i t t s b u r g h , F a . 151. 3
*
t
The f o l l o v i n g l i s t t Threshold Li mi t s L i St
_ - . , - 1 O O
p r o p o s e d R e v i s i o n s end A d d i t i o n s f o r
,
has r e s u l t e d f r e e the f a l l m e e t i n g of P l e n . . > C=c,,--ee.
bstance ---------
F r om ppm,
p r v T ^ l O K S UNDER CONSIDERATION
~
------------ -------------
p r o p o s e d f o r 1 9 6 8 L i s t _______
1 9 6 7 - L ^ -------------------------------------------p~pmT ~mR/ m^ o r
g.g/mJ or mppcf
A 'p p e n" d i x 7 . A l i m i t o f 5
o p p e f , b a s e d on i m p i n g e r s a c p l e s c o u n t e d
v by l i g h t - f i e l d t e c h n ic s , is s a t i s f . c t o r y
\
c o n t r o l e x p o s u r e s t o m o s t form, of . s -
'b esto s. C r e c i d o l i t e , however, h.s been
s'hown t o p r o d u c e , i n a d d i t i o n t o
.* _
h i s t o r i c i n f l a m m a t i o n , a l s o m c-sVo1t h e vl i o -- .
L
C ~
Ben rone \
c:"
Eutyl mercaptan
10
Cristobalite*.>..
P
Tridymite*
Ethyl mercaptan
1
Heptane
200
Mathyl mercaptan
10
Octane
200
sbestos at this
u n t i l mo r e T T f l^n i t i v e dTta a r e o b t a i n e d ,
i t i s r e c o mme n c e d t_h a t w o r#k e r s e x p o s e d t o c . r o c i d o l i t e be e q u i p p e d wi t h i r - s u p p l i e d \J V. h e l m e t s .
10 0.5
Downward r e v i s i o n by a f a c t o r of 2 . 5 ?
0.5 500
0.5
* 00