Document 3QBXzJg2XZE25y1YzMJE61G8x
FILE NAME: Kentile (KEN)
DATE: 1970
DOC#: KEN004 DOCUMENT DESCRIPTION: Notice of Intended Changes to Appear in ACGIN Threshold Limit Values of Airborne Contaminants for 1970
NOTICE OF INTENDED CHANGES
TO A PI' EAR rN
ACCIii THRESHOLD LIM IT VALUES OF AIlUiORNE CONTAMINANTS
FOR 29VO
_
7`he f o l l o w i n g chsn;;e.c and a d d i t i o n ; ; :o the TLV R o o k le t f o r lpf'9 u e r c r e c o n mended f c r a d o p t i o n by the C o n f e r e n c e a t rhe C o u c i i t t e e 1s p l e n a r y m e e t i n g A p r i l 1 and C. 1970. Each p ro p o sa l t ; i l l remain in the above s e c tio n fo r n p e rio d o f a t l e a s t two v ea rs b e fo r e t r n n s f e r r n 1 to the Recommended L i s t .
RECOMMENDED CHANCES
ITEM
FROM
TO
Ammonia
C 50 pprn
25 ppni _
Ammonium c h l o r i d e
1 mg/nP
10 mg/m?
A lly l glycid yl ether
10 ppra
5 ppm
Asbestos "
L2 f i b e r s / m l > 5p in
5 fib e rs/ m l > 5p in
length or 2 nppcf
len g th , w ith 10 f ib e r s /
ml c e i l i n g o f s t i p u l a t
ed d u r a tio n and f r e
quency and as measured
by s p e c ifie d p rocedu re
Camphor
2 mg/m^
12 mg/m>* o r 2 ppm
Diethylene trianine
10 ppm
1 ppm
Formaldehyde
C 5 ppm
C 2 ppm
!:I n e r t " or N u is a n c e Aerosols 1? mg/m5
10 rag/m^*
Mercury
.
O rgan ic compounds
A lk y l compounds
t
Methyl chloride
C 100 ppm
100 ppm
Q uarte, mppcf
R e s p ir a b le Mass Sam pling Lim it s for T otal Dust
Vinyl chloride Wood d u s t (nona l l e r g e n i c )
_____2 5 O_________ v, Q u a r t z + 5
PO oc/ro^ Q Quartz + 2
C 500 ppm 10 tr.g/m^
500 $ Q u a r t z + 10
50 mg/o5 cfi Q u a r t z + 5
200 ppm 5 mg/m?
* T h i s r e v i s i o n a u t o m a t i c a l l y r e d u c e s a l l o t h e r s u b s t a n c e s l i s t e d a s 15 mg/ern* i n
th e I 969 TLV B o o k le t to 10 n g / z P .
_
1
- " G33>
-.frrvw*
* i-*
P
N'FU ADDITION?;
ITEM
PROPOSED LIMIT
Butyl laccate Coal (bi turninous ) Di sci r.on c-N Dibut y Laminoetha no 1 Iren pentucarbony1 Me t hy 1c ve 1open t ad i eu y 1 mancane ce
trica rb o n y l (as Mn)
Rosin limes S u b t i l i s i n g ( p r o t e o l y t ic enzymes)
1 ppm 2 mg/m3 ^ 0. 5 ng/zv1 2 ppm 0.01 ppm
0 . 1 ppm 0 . 1 rng/m^ (as aldeh yd e) 0.0005 m"/rr3 (as c r y s t a l l i n e
enzyme a c t i v i t y )
For the TLV Committee
May 1970