Document 2q44dm8MVgGBq94VvnrZeq867
FILE NAME: Reichhold (REI) DATE: 1971 Dec 22 DOC#: REI025 DOCUMENT DESCRIPTION: Safety Bulletin - Recommended Practices
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SAFETY BULLETIN ff. 48 -1 7 December 2 2 , 1371
RE1CHHQL0 CHENICALS,. INC.
SAFETT B U E T l N '
ATTENTION I
ALL GENERAL AND PLANT MANAGERS, ENGINEERS,
SAFETY DIRECTORS, SUPERVISORS, PRODUCT MANAGERS, AND TECHNICAL SALES
U. S. FEDERAL W lL U AM8-STEIGER OCCUPATIONAL ________ SAFETY AND HEALTH ACT OF 1970_______ .
NEW FEDERAL ASBESTOS STANDARD PROMULGATED
OSHA has d is c o v e r e d t h a t c u r r e n t l y a f f e c t i v e s ta n d a r d s f o r ASBESTOS OUST c o n c e n t r a t io n s e re d a n g e ro u s t o an e m p lo y e e 's ' h e a lt h ant) has I n s t i t u t e d a new em e rge ncy s ta n d a rd t o re d u c e t h e ALLOWABLE CONCENTRATIONS OF THIS HAZARDOUS SUBSTANCE.
The o l d s ta n d a r d was up +o 12 f i b e r s d u s t p e r n i l I I l i t e r o f atm osphere ( i f th e fib e r s a re g re a te r than 5 m icro ns in le n g th ) fo r en e ig h t-h o u r tim e -w e ig h te d average.
The new e m e rge ncy s ta n d a rd Im m e d ia te ly e f f e c t i v e has re d u c e d the p e rm is s ib le as not to exceed 5 fib e rs per m i l l i l i t e r fo r t h e same s lx e d p a r t i c l e s . E m p lo y e rs m ust p r o v id e 'e n g in e e r in g c o n tro ls to ab a te exce ssive d u s t c o n c e n tra tio n s and p ro v id e r e s p ir a to r y equipm ent where th e c o n tro ls a re not fe a s ib le o r ca p a b le o f c o n t r o llin g th e d u s t le v e ls . R equirem ents have a ls o been e s ta b lis h e d fo r th e use o f d u st c o lle c tin g d e vice s hand ty p e and power to o ls and f o r g a th e rin g and d is p o s in g o f asbestos d u s t.
An a tm o s p h e re c o n t a in in g more th a n 5 f i b e r s p e r m il I T i t t e r b u t n o t o re th a n ID f ib e r s (each g re e te r th a n 5 m ic ro n s In le n g th ) may be p e r m itte d up to a t o t a l o f J5 m in u te s p e r h o u r f o r up t o 5 h o u rs In an e i g h t - h o u r d a y .
P r o t e c t i v e r e s p i r a t o r s w o rn by e m p lo ye e s m ust be I n s p e c t e d , c le a n e d , re p a ire d , s to re d and heady f o r use In an e a s ily a c c e s s ib le p la c e . A li hand and power t o o ls w hich pro du ce a s b e s to s d u s t m u s t be p r o v id e d w it h lo c a l e x h a u s t v e n t i l a t i o n and d u s t c o l l e c t o r s . A s b e s to s cem ent m u st be m ixe d In c lo s e d bags p r c o n ta in e r s , waste and s c ra p m ust be c o lle c te d and s t o r e d o r d is p o s e d In c lo s e d b a g s . A l l c le a n up w o rk m u st bp dene w it h vacuum c le a n e r s -- No HAND SWEEPING I S ALLOWED.
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The osHA N a tio n a l Concensus S ta n d a rd s and E s ta b lis h e d F ede ral s t a n d a r d s T i t l e 211 Labor, C h a p te r IT P o r t J 9 I 9 ( s e e my S a f e ty B e l l e t Id N o . 4 8 -2 1 h a t been enue nd ad i n S u B p s rt <5 t o I n c lu d e t h i s new EMERGENCY ASBESTOS s ta n d a rd a s SECTION 19 1 0 .9 3 s "A s b e s to s O u st" un de r S e c tio n 1910.93 e n t it le d " 'A ir C o n ta m in a n ts ". Ammendnente were mads t o Volume 38 o f th e F e d e ra l R e g is te r as 15101 on A u g u s t 13 19 7 1, and 23207 o n D ecem ber 7 1971, as nev S e c tio n l9 |D .9 3 a and found a tta c h e d , S e c tio n 1 3 (8 .5 3 (c ) o f th e C o n s t r u c t io n S a fe ty A c t has bean aounended t o In c lu d e I9 tp .9 3 a , and S e c tio n 1 9 1 0 .1 2 has b e en dmmended t o n o te t h i s ch B n g e .
An RCI p la n t u s in g a s b e s to s a s a raw m a t e r i a l In t h e m a n u fa c tu re o f p o ly e s te rs o r e th e r p ro d u c ts should ta k e a n o th e r c r it ic a l lo o k a t I t s own m ethods f o r keeping th e d u s t atm osphere o f a s b e s to s below th e e l lo v a b le lim it s and m aking c e r ta in t h a t th e p r o te c tiv e hoods and e xh a u st fens ere o f adequate c a p a c ity , w o rk p r o p e r ly , and th a t c le a n u p p ro c e d u re s com ply w ith th e la w . A ls o , make c e r t a i n t h a t em ployees a r e p r o v id e d w ith th e p r e s c r ib e d p r o te c tiv e d e v ic e s and a re u s in g them on th e Job In e v e ry s lT d a tlo n w here th e d e v ic e Is r e q u ir e d . The Cooke C o lo r and Chem ical D iv is io n a t N e c k e tts to w n , R o c k p c rt, and V is a lia sh o u ld b r in g I t s o p e ra tio n s In to comp I la n c e w ith t h is law a t o n c e ,
-P e te r FaSs has a d v is e d t h a t o u r p o ly e s te r g ro u p has been In te r e s te d In f in d in g a re p la ce m e n t f o r C AB-D -SIL, end V in ce Morrow has s u p p lie d me w it h a t o x i c o l o g y r e p o r t fr o m - U n io n C a rb id e on I t s C ALID RIA ASBESTOS w h ic h o f f e r s p ro m is e o f d o in g a b e t t e r Job a t a m ore e c o n o m ic a l c o s t and. Is d e r iv e d fro m the_ m in e r a l c h r y s o t l le w h ich produces a le s s t o x ic form o f a s b e s to s th a n n o rm a lly enc o u h te ro d when d e riv e d fro m th e m in e ra l c r o c Id o I I t o .
P ersons w o rk in g w ith a s b e s to s o v e r a lo n g p e rio d o f tim e some tim e s deyeTop e d i s a b l i n g lu n g d is e a s e known as A5BESTOSIS fro m b r e a t h in g t h e d u s t , and t h e r e Is now e v id e n c e t h a t some c a n c e ro u s tum ors have a ls o re s u lte d from w id e ly v a ry in g -exposures. Because a s b e s to s u n d e r, c e r t a i n c o n d i t i o n s -Is c o n s id e r e d a CARCINOGEN, I t Is e x p e c te d t h a t th e TLV o f 5 f o r a s b e s to s w i l l e v e n tu a lly be reduced t o a TLV o f 2 a s b e s to s ' f ib e r s ( p a r t i c l e s ) p e r m i l l i l i t e r o f a i r . in New Y o rk C i t y a s b e s to s s p r a y in g o f s t r u c t u r a l s te a l as f ir e p r o o f in g c o n s tr u c tio n w i l l be banned In e a rly 1972.
A tta c h e d Is a copy o f th e new F e d e ra l E m ergency A s b e s to s Law S e c tio n 1 9 10 .9 3a . A ls o e n c lo s e d Is a copy o f The Union C a rb id e "A sb estos T o x ic o lo g y . R e p o rt" dated A p ril | , 1970.
C. J . W indsor RCI CENTRAL MANUFACTURING W h ite P l a i n s , New Y o rk /c b
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UNiaNDAUmDS GCKPDCTON-MflWiQ ANO M EW B OWISfDN 273 PAHK AVfNUE,NPWVORK.NEWVCBR10017
PLEASE BEPEY TO, "CAUDRIA ASBESTOS" - P. O. BOX 579 - NIAGARA FALLS. N. Y. . 143D2
ASBESTOS TOXICOLOGY REPOST
Xt has been known for years that some persons working In asbestos production
were prone to develop a disabling l\uig disease. In tim e, this condition be
came known as asbestos!* and was related to expoaurelo high concentrations
*'
of asbestos dust. With further experience, it was found that men could work
with asbestos without development of long disease if dust concentrations were
kept below a certain level.
It has been generally accepted that a worker will not develop asbeetDsis If
he is exposed to no more than 5 million particles per cubic loot of a ir , even
i f this exposure continues fox ids entire working lifetim e. Although no
cases of asbestopls are known to have occurred when exposures have been m ain
tained at or below this level, the ACOIH (which sets.the threshold lim it value
(TLV) in the U , S . A ,} has indicated they intend to'lower the T L V for asbestos
to 2 m illion particles per cubic foot in an effort to increase the safety factor
incorporated in die lim it. The U. S , Department of Labor ha*-already issued
a regulation under the W alsh-Healy A ct placing the T L V for asbestos at 2
1 "
m illion particles per cubic foot for public contracts in which they have ju r is
diction, This concentration of dust is generally not visible in the average work
area unless a beam of light causing a Tyndall effect is present. Usually the
dust concentration m ust be from 8-10 m illion particles per cubic foot (M P F C F )
before its presence is visible-in average lighting conditions.
Several years ago, it waa reported that there was an Increase in the incidence of cancerous tum ors, especially of the tung, associated with asbestosis. R e
cently there have been reports of some cancers occurring in individuals e x posed lo asbestos dust, but who have not developed clinical asbestosis. It
is believed by most authorities that these cases have been associated with exposures significantly exceeding the Threshold Lim it Value.
A type of cancer named mesothelioma has been noted to be associated with asbestos
exposure In recent y ears. These tumors, while rather few in number to date, may
occur in individuals with histories of only slight exposures, and that as much as
twenty to forty years earlier. TheTe Is considerable evidence that erocldollie* is
`m ost frequently associated with mesotheliom as. From the data available it appears
that the T L V of 5 MtPPCF may-not be low enough to protect against mesothelioma.
I
Research on the problem continues.
"fUnion Carbide's C A U D R IA Asbestos is chrysotile, not crocidcU*e.
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Coatsol of a ib m tD i dust exposure Is therefore necessary, The control methods are the standard.eros ap plicable. a variety of duct/ opration. They Include closed flow systems, Vet processes where possible, and adequate exhaust ventilation h are openings In th e-System are necessary. P elletisin g is some times used to Improve the handling characteristics of otherwise dusty m aterials. Where satisfacto ry containment to stay within the Threshold U n i t Value is im practiced or im possible, efficient and reliable respirators are available for the protection o f the employee. A program of environmental monitoring is highly desirable to determine that Threshold Lim it Values are not being exceeded. In manufacturing -industries It would be desirable to know the dust concentra tions where the asbestos ie dumped from bags into the p rocess. Concentrations would a lso be determined where dusting occurs in finishing products. While initial dast determinations should be made at frequent intervals, once the level has been established as satisfactory, the frequency may be extended to occasional tests to assure continuation of a satisfactory condition.
Pre-employment and periodic physical examination of workers are desirable. These should include cheat X -riy B to insure that the worker has no chttBl; con dition p rior to work with asbestos and to determine that no lung changes are resulting from 'work with asbestos.
It is believed that the addition of asbestos at the proposed levels during the manufacture of products would be harm less to the consumer. Total dusting would hove to be well in excess of any levels acceptable to the consumer lor the asbestos , concentrations to approach the Threshold Lim it Value.
In conclusion, While asbestos dust in excess of the Threshold unit Value is potentially harm ful, as axe many other duets encountered in industry, it is readily controlled as other such dusts and it can be used safely with appropriate precautions.
Revised 4-1-70
C A L -I3
Industrial Medicine And Toxicology Department
Union Carbide Corporation
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i SAFETY BULLETIN NO.
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blSTBI&OTlQW LIST
ANBOVER W ooten
ELIZABETH S S K r55?ir
HONCURE D avis
VISALIA Sm ith
L a t t i n v i i 19 Mahanna Faul knar
Greene - B a le r P etro
gramo ju n c t io n
Brawn
MORR1s Harwood
WHITE C ITY F r o l 1hg S chalt i
AUSTIN
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Basl I
MA I h o iiu s
G atew ood
Brown
WHITE PLAINS
M nhrlok
S c a rb o ro u g h
R a lchh ald -
Blghhm
NIAGARA FALLS
Holman
GULFPORT
Keenan
Baum
AZUSA
T homa s
B a rre n s
Fass - N earing^
X reFte
So m a n
Ke h o e
S try k e r - H a tb lg
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B ulge r
Sweet - C o lb e rt
Mel m e t
HACKETTS7DWN-
Shea
S ta u ffe r
R0CKP0RT
SAN DIEGO
M logel
Wasson
van Arfcel
Goasow
F l sc I no
W arner
Bokhar1
B o lte n (2)
BREMEN E lko n b e rry C a rv e l! - L o v e ll
S m ith Shoop
Cohen, G.
J o z lo rik I
sew ickley
G ross Roth sch 1Id Do 1b e a r
G arstac kor
Es kow Bender
MciTl e l la n d F rost
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W ettach
SALES
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W. S A n d e r s o n
HAMPTON
Kennedy
A d d o n li lo
S1s t ) n o -Z o 1a c h fl3 M| le y
Johnson
Bad 1e r
S .S .F .
W, N. D a v is
HOUSTON
s n id s
Drake
CHARLOTTE Babb W h itle y
Leaver
A s to n H ealey
Boak E strodo McAdam
K erins M ltc h e l1 Rockenbach
CARTERET
d'E raery C lark D ittric h F ra ta l1|
H andorf G odfrey
JACKSONVILLE Dunnmon -
0 . G ates Sheddan
s t e r lin g forest
HSTTTer Bet Iey
F lc a rre * S p le g e 1
T r 1v 1so n e
Go 1d b e rg K ltk p a tr|c k
M orrow Turner Wrasman
R. R. Cook F r 1z z b M e - C l e ve 1;
CUYAHOGA FALLS
B ra n so n
O vostrud
H, J . C ro fto n - N.
W a lte rs
C arr
Bursan M egenhardt
k a l is p e l l
L a r 1t s e n
Hartm an
AGRICHEM Wagner
TACOMA
DETROIT
KANSAS CITY
Lem le u * -
JOHNSON A HIGGINS
B re a d T o ve
L. B randt
S tensrud
C hester
Brebon
W ill lams
A lly n - W alker
S Iu yte r
Cams
Newman
G1e c h e
F ra 1m
S m ith - KasTen
Cass 1no
O uerton
Trumpy
MANSFIELD
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