Document o9BkY38kobVzmk9Nw2Lb8LQ6o
PLAINTIFFS
i EXHIBIT
f AfSdS
July 24, 1920
Dr. Joa t. Coma
-
Medical Director
Ovens-Corning ?ibir|U CorpraUu
Tolido, Ohio 4)401
Deer Dr* Koaseai
\
Presented kinvlih ere two copies of our report cower*
lag the asbestos survey end ventilation study et tbs Serlla, Mew Jersey Pleat* Xa accordance with pour re* quest, our recoaaeadations resultlag Proa this study ere Being forwarded with the teport as 4 separate itea*
this report eoatelas the esae Basic iaferaetlea that was presented and discussed et eur aeetleg et the ftarlla Pleat
ee July 10, ead the reeeaeeadatleai hare teem cheated very little ee e result sf that aeetleg*
Xf there are eay questions coeceralag this study or the report, do aot hesitate to coetact as*
Very truly years,
/7
&
h
02 401 044?
JIDUSTIIAL ITCIIIE A0 VX1TJU.TICB I01TXT 0*111*001*180 FIlliCLAS COIFOULTIO* IlUXIi IXV JItllT
noma
.
Aa xtaaiU nkiitoi
itirvip vti asaduetsd At
*
tha Barilo, Cav Jsrssy Plant sf Ovaaa*Coriing Plbarglaa
Corporation to Identify in vhira >i in ktii| ivir*
npon4 to nliuoa fUarii n4 to tainn tki Intensity
of aabaatoa Inhalation to m to Tirioia Job lUaaUlii*
dons, At the tine of the aumy on iTilntin vas u4i
of tb riotvoro Finishing Ilia ventilation to itaiaa Ito
perforasace la ooatrelllng iiunaa of itbaatoi lo the fork*
rooa. Thii survey via conducted by Hours, John I. Hutcblor
and Hiory J, Kuranko of George 0. Claytoo A Associates, lac,
4urlt| tho took of Jana I, 1170*
IKTiODUCTIOM
.. .
Tho Barilo, Vav Jersey Float of Ovcas-Goralag Plbarglaa Corporation produces aa aabaatoa aonealalif insulation
notarial, Zaylo* Tba baale proeaaa aoaaiata af vat forav* lotion, pouring, drying, ailing and packing, valag various foraulatloas and several dlffaraat altos tad akapaa af Arltd Inaulatiea notarial. Both akrraotlla and aaoalta aabaatoa ara aaad la tka basic forauiatlaa, togatkar with line, allies, caaaat, diatoaaceaus aartk, iron akroalta, alay and raproeaaaad Kayla dost*
Vorkar exposures vara seasnred la tka follsvlag plaat avaaat
tav Katarlal laadllog
latch Ploor Oparatlaaa
He* 1 Pouring Line
Vo* 2 Pouring Line
-
Klacallanaoaa gerviee Joba
Seal-Koldad Billot Finishing
Zntagratcd Finishing kina
fov Flatvara Flnlahlag kina
Band lav Opsratloas
Oovtkarn Control Boev
.
a
02 401 0438
?0
2 ASIgfTOt IIHAUTIOI
Until rocoatly tba ateaderd aotbod at
iiiutti
la tha vorkrooa vat bated ea tha Malar at particle# far
unit volyae (alHloni of particle* far cubic foot) deter*
alned by ttaaderd taptnger taspllag and iOOZ llgbtflald
vlcroecopy* Far teveral yaara tba Threshold Halt Talma
(ACCIH) vat cat at 9 appcf* Zm IMt Cka Threshold LtaUt
Coaalttaa changed tba 717 ta a tentative Ttlaa af 12 asbea*
taa fibers far al far flbtrt greater tbaa Su la length, at
4atarmloa4 by fbata aoatratt alcrestepy at UOX* la 1170
tba Committee raducad tha TAT to a tentative valve af $
fibart far si aa tba ttaa basis* Tba Iritlth Occupational
bvgleaa |oel%tv baa adopted a ataodard far catyaetiia of
2 fibart car al for SO yaara af exposure, a rtbarc far al
for li vatrt ad e^fteura-r
U tLUci_ji(.dt fbr
am
et t^P'urxi That# standards are, tm tba opinion at taa
experts, tba best'that caa ba drava froa asictiat data*
Tbatt data ara aot idaal and, af eeurce, tha ctandardt ara
tubjact to cevtev la tba light af aav evidence gad laprovad
aathodt of aetureaent*
Good induttrlal hygiene fractlea tuggdtta controlling expo* turat balov tha *axiaua allovablc level, rather tbaa vela* tenaaca at the mailaua* Xa tbit connection, it It appro* prlate ta datlga currant aaginaarlag centrals for aa expected alr*borae aoncantration af 2 fibart far al it viav af the tread dovnvard la tba acetftabla expetvrt laval aid ta attar* dance vlth goad aaglaaarlag fractlea*
AWFttirC FtOCTPfflKf
la line vlth tba latatt aaapliag davalafaaata, tboaa aped* fled by tha Tbraaheld Halt Value, air ieaplea vara collected on pre*valghed aalluleta aatar tatl taa flltara by tba aa of Nina gafaty Appliances pereot ax japlers* Tbraa typaa of aeoplea vara tabaa: braatblag toaa, gantral araa, aad egulp* vent locations, iaapllag ratat vara i*l*2*0 litarc par alnuta and aaapllng parloda varied batvaaa S and ISO vlnutaa, depend* lag upon tba axpectad dutt loading* At tba eoaclecloa of a aaapllng period tba filter headt vara raaevad aad earrlad ta a laboratory araa vbara tba flltara vara earufvlly treatfarrad to aoalad aoatalaara for traaeport bach ta tba Xaboratarlaa af Claytaa A Aaaaclatat*
02 401 0439
rngt courruo mociptii
The Bithod of covet lag ubutoi (lbtri vat tbit Hid by
th U.f. fvbllo laalth Service for the eauaeretloa of
ubiitoi duit oa Mabtiai filter*. Tbi diietlptloi of
tbii method by 6. I* fdnrdi lad J 2. iyacb ippurid la
Ana. Occup . Hti .* 11, 1 *4 (Iftl)*
*
1/tir volfblai, eaetloae of tbi eaapl* art souated oa itu
dird mlcroacop* illdii ualaf a high Tiicoilty eolatlaa of
maabraa* filter material ia a lit mixture of dlatbyl ozalata
aa4 dimethyl phthalat* eo reader the flltar traaipartat.
Since the mount ia atahle for 90 day*, 35 mm oolor alldea
ara tibia aa parmeaaet record* of rayraeaatatlv* araaa of
each flltar.
..
Tha aibaatoa flbara vhlch lia oa tha aurfaaa of tha flltar ara counted vlth fhaaa ceatraat mlcroacopy <aa epealfled by tha teatetlve Threshold Holt Valua) aalag 10 x eye*
piaca aad a 40 a fhaaa ceatraat objective*
Za mouatlag tha eemplt, tha tranaitloa of tha doat*aupportlag aubatrata (roe traaaluceat aolld aembreae flltar aallaloaa aatar material to a treaaparaat, optically homogeaeoue gal ia vary gentle* Clearing of the flltar ia !**, ragulrlag about 15 mleuee*, aad at mo time doaa a aaatacua avaap acroaa tha duat dapoeit* The flltar alovly aoftaaa from halov oaueiag ao radlatributioa of tha flbara*
Tea fleldc aelected at raadom am tha cample ara aoamtad
aad total flbara, flbara from 0 to 5|i, flbara graatar them
$h cod flbara graatar thaa 10** are recorded. Aay particle
havlag aa aapact ratio of 3 or graatar ia eoaaldered to ho
a fiber*
'
tiiutti or tiwpLirc totvtt
Table 1 rocorda tha roeult* from tha tS acBplce taham duriag
tha aurvay, aad llato tha comcaatratloaa la tarma of total
duat, milllgrame par cubic mater* aad aabaatoa fiber aoacem*
tratioa, flbara par milliliter. Throe fiber leagth caterer*
lea ara lacluded: "greater thaa 9 mlcreaa," "graatar thaa
10 mlcroaa" aad "total."
.
Table 2 tabulataa tha oxpoaura hy Jah alaaalflcatioaa for each job etedlcd* Tha atpaauraa ara eatatorlaad hy latea* alty with aumbere 1* 2 aad 3, for both aabaatoa aoaeaatratloa
02 401 0440
4
(fibers >5u) an!
eoA(iitritii. The uMiin
lotto*icy via obtains! k; iuriili| all kmtklii eons
lupin taken for a |ia# Job claeslficatlen an! laipitlii
th( iviri|i vltk eka tnutlva TkriikiU Halt Vilm
(4CCII) far 1170 aa follows:
Xxpoeura Citapr;
Asbestos fikari/al
<>5u)
Tatil.kvifi **/**
1
<4.t
<9.ft
X
* 5.00*9.99
10.00-19.99
5 - ' >10.00
>10.00
Although eki lutkira !o not iieimrtly raflaat tiae-velghtef avartga ixpoiuraa, tbajr do offer a useful iafex af relative ipoautai for all )ok claaaIfleationt.
IEV fLATVA11 MlflSHIIC 1191 VIlfTIUTIOI
Disctxmov
Tha now fuat collactiaa an! local ttkivit aystta at tha flatvara ftalahlag llaa eoaalata af a rather ataplat aulel. tranche! aarlaa of exhaust fucts loafing frea tha aav finish, tag llaa eomveyor operations vpvsr! to a central exhaust fuct that axlta through tha roof aa! aorthverf ta a haghonsa collector locate! near tha aaln giant hullflag. The aav flat, vara line runs caatlauously Curing tha Cay shift vith tha exeap. tlon af three "break" periods at lOtOO A.M., 12:00 naan aa! 1:00 9.M. At those tines, the systea la shut Cava, tha hag. house la shaken, an! the "begbouse checker" leepeeta tha InalCs af the hagfaouee far axeasalva Cuat accwnulatlan.
this control concept an! tha present aofe af aparatlan results In a CacraasaC air flov aa! Increase! statla praaaura (leas af auction) vlthla tha Cuat collactiaa natvorh as tha fabric fil ter s.accuaulate Oust.
AH rtOV VAIIATIOh II 1007 DUCT
On June 11 tha static pressure an! air flov rates vara neat, tore! in tha 30" roof Cuct leading fron the new flatvara finishing line to tha bughouse collector. A velometejr, staa. Car! pitot tuba, Incline! gauge aenoaetar aa! glass.ete**! theraoaeter vara use! for the naeturenents, conducts! at a ' point about halfvsy batvaen the roof exit an! tha eolleetor. The results of these eaaurenenta are shorn below:
02 401 0441
9d
s-
TIBC
Static fracture
v.c.
Duct tamp* Avg. Velocity rr fpa
0925
4*4
095<
4.4
SO
0943
4*4
so
0953
4*3
so
3,470
1002 Shntdova
1013 Startup
1.4
79
4,074
1017
0.2 :
so
1022
4.0
so
1400
4.0
. S4
3,742
1403 Shutdown
S4
1435 Startup
s.s
S4
4,US
flow Sett tfa
19,002 20,003
18,471 20,248
At a reault of tkiti viftiurtsiitf) it 11; li tata ikt tki lt flow lit* the 4ui( collector virtu ikt S*10X 4imU1i| p9& tilt degree t! duct leeutulitloi vltkli kki ki|koi
411 TLOV VAJtllTXOlf AT THt flBISHIBC 1121
On Jvbi 11 tk itttlc pniiuni vin ataturad la ill talectad lift tod tht center line vaiocltlet were timr4 im four it* leeted Itgt tf tki finicking lint enhance tjttit prior tt til following tki toon knak, during vkiek tki kig fllttra vtrt cleaned. The rtttltt tf theta aeaauraaantt art litttd kilif it TatIt 3.
Thttt antturtmtatt ikiv that tht variation ia air flov rtttt it aoch greater at tht fiaiahitg Hat thta ia tht atia fact ittdlag to tht htgboutt collector. Ia aomt ttttt tht dact velocity eta drop htlov tht accepted aiaiama 4att carrying velocity of 3,500 fpa at a rtttlt of aorati eperttleaa, prior to cleaning the duct filtnrt*
i
02 401 0442
OrSgtVATIOtf OI PUfT C0ET10L AT Tit IgV fUTVUI Ult
1. AC tba flyeuttcr OMntloa tk aotor ikift |rtti4i through tk kenlii vltl I 3/4" gap craved the meter k*Ui Tkla mUi It 4 coiiidrikli iiont if due ittid through tki apemlag ky the Mttrifi|l min f Ui ntitlii ikifti
2. At tka flyevtter astt yaalttoi, cartaa #f rahkir'da*
fiae(U| kafflai kv kaai littailad iatraiarlyi raiilc* lag la l/J" gap katvaaa tka Cog af tka fiftattar kaualt|
and cka top af (ka kafflaa vkiek akaild aatia to prevemt duac partleloa kalag throve ouevard k; tka ratatleg fly-
cutter. At a recult, a largo eaouat af duct la kalag ealttod ta tba workroom through tkla aanecectery apemlag.
3* At eaverel teeveyor Itaa Junction!, laeladlag that katvaaa tka aaedera, tka uaderclde czheucc kooda ara improperly plaead at tka polat vhara tka ciafayon reveree direction. Aa a recuit, duct vblck could ka captured & carried alaag tka caavayar aad duapad aato tka floor*
A* At several conveyor Jooetlooi, laeladlag tka flyevtter*
loader aad aide and aad trla political, tkara la aa voder*
aide azhauat far duet kalag carried alaag tka conveyor,
rcaultlag la algalfletat gucetltlee af duat kalag dropped `
a tka floor vhea tka aoaveyor kolt reveraea dlraetloa*
*
S* At tka allttar aav poiltloa, tkara la aa aaaateiaartly large gap aravad tka abaft vblek allova ezceia dvat ta ka tkreva avtvard ky tba aav'a vatatlag actlaa.
'
4* relieving tka allttar aav paaltlaa a ratatlag krvab kaa
kooa laitallad ta aloaa tka moving flatvara before It la packed. Tka kruah la aot pensioned properly aad tka flatvara product novae ta ka laal aoaveyor aactlaa vltk eeatlderahla duet aa Ita vppar eurfaee* Aa a eeaceguence, vhea tka flatvara pradueta ara packed lata tka kasaa ky the packara, teplewa aaouata af duat ara aatralaad lata
tka kraathlag gaaa af tbaaa an*
7* Tkara la prataatly vo asbauat ventilation at ar soar tka packara tka aav flatvara live, altbeugk tkara la a clear *
aaad for avek local asbauat veatllatloa*
I* At tka faador pasltloa a caaopy keed vltk a faea area af 14 aguarc fact kaaga above tka caavayar appraslaataly 14 above tka caavayar belt. Tkla kaad la askauctad ta a dlf* faraat collector tkaa tka atkar local askavet heeda la tka flatvara veatllatloa aatvork* Tka fata veleeltlaa at tkla
02 401 0443
7
koo4 fir# measure! tvlci; firit with (hi mthr pruhii faa rmtas u4 Mend, with tka (a iff, u (hi first eiiii thi (ici yeloelty imi|id 13 vuh a total flow rid if 1,330 id. Xa (hi Mini mi, (hi (m dtoeUy iTiruid 130 f>a vt(h a tidl (Uv if 1,400 cfm. loti of (hid eoafltiota represeat uieiirdhii foatrol for (hi 4m eatrelfteS d (hi hruthlai soao of (hi feefer Jurist lit aoraal work operatleae. m ui#r; h#i4 la a Midi oholca of ooatrol for tkts idUiKloa, lot if . an4| a flow rata of 4,*00 afa woU la ra(lra4.
iiKfiiic it rumti mituro mi iqpitkxtt
Six staples wara rakaa aaar tka flyeetter, aaafara aa< sllttar saw oa tka flatwara Ilea coareyor, to aaaata tka alialfleaata of tkasa wait operstloftt aa soureae af fast la tka workroom.
Tka raaaltt art as follows!
am a
om
Total Nit r/K*
dUkastos Flkara/al <3u
Flycutter Salat
l
11.77
4.10
Flycutter txlt
1 1
11.47 11.11
1.13 1.11
*
Slitter-saw
1
11.17 .
9.15
It aay ka ooaelatfaf tkat afforts ta lowar tka fast aoeeaatratloaa aaar tka Flatwara llaa ara mot Il4a4 ky tka yrasaat atata af operatiaa for tka akowa items.
Qi c
^ c I' Jay> ' "Wu'tcVYor-----------------------------
Ctiafi Sa|laaarlag Sorwlaaa
i i
I 02 401 0444
%
tlCOKHZHDATIOIl
ovivtcotme riiuoui cououtioi ss&lzvi itv mm
1. A elgatficaat eitrUtloi to tka over-all date ^rok-
Ui at tka lorila >iue mtltt !? traffic, ktk
cad tt(ttruck| la mm vkau litsa aaouata
of fettled 4uit kt?a cetoavlate4, etpaelally am tka
ktk floor* aear tka pouring llaaa aa4 tka flmlaklac
llaaa* A gniuratmt of attaatioa east ka devoted
to reaovlag tkaaa aeavaulatlcee of duot oa a frequent
kailii kotk vltk tka acchtnisod avenger aa4 vltk loaal
kooie-cleaateg effort*, laal4iat vat aothodc or ether
4uat aupprafalem aaimrai* A permanent, oaatral veeuao
cleaning ayctca aoal4 undoubtedly ka aa4 to affaet a
cleaner* leae ducty
condition.
2. A thorough study ahould ka made of vaya aa4 aatkoda of optlalslng tka production lay-out la tar**, of matarlal flow pattarat tod autoaatloa of aartala oparatloaa vhlah praaaatly generate aigalfltaat qaaaticiec of duet* it* aludlag tka hatch floor oparatloaa*
1. Tka asalataat latch Mlser'a daaptag station am ko ra-deeigned to laeorporata adequate local ventilation*
4* Tka ftrippara* Oilers aad Itrlp Carrico Kao oa tka pearlag llaaa arc receiving axcaooive espooara to ackaatoa aad total duet, aad etapa auat ka takaa iaaodlatoly to reduce tkaaa cspoourac tc aa aeaaptakla level* Tka or* , teat ta vhich ventilation ahould ka meed far aoacrol
ahould ka aarafully atvdled ta vail oa othar teehaiquae*
5* Tka Oryer Servian kUa ahould kero hit axpooaro doeuaeated, aad if it la oa high oa praaaatly natlnatad, ka akaald ko aqulpptd vltk oo enclosed, filtered oir ooklo for kio lift-track*
4* All Vrapptr-feckert aad rackets oa tka flalsklag llaaa (Cartoa Mea oa lav Flatvars lino) vuat ka protected tbrougk local exhaust ventilation ot their jot stations*
7* The Xatagrctcd finishing LUif vkca moved to it* aov location, suit ko equipped vltk adequate local ventlla-
tloa to protect the lav Opcratar# aad tka feeklnf larvlaa Kao*
02 401 0445
I. Tba 4uc control lyitia it tba kill mvi mr tki u
Flatvara Flalahlag Line muct ba thoroughly cleaned,
repaired and MlitiUc4 to provide Mttihli acral if
ilrkorai duet for cba n ipintifi*
.
9* Tha problm otll4 la tbe autlia "lav Fletvarc
rialihlat Line VtatlUtiia" abould ba corrected aa im
aa poaalbla, alaca aeb if tba enumerated problem* la a
ratber ally corrected, bar algnlfleeat oacrlbatr
co cba duat coacaalaacloa around Cba Flatvara Flelehlag
Llait
*
10* Tba canopy bood at cba Feeder'a vorb yoaltloa aa cba Flatvara.Flaicblag Lina aho14 ba removed aa4 replaced
vlcb a yroparly 4aalgaa4 clotted, lataral exhauet boo4
vblcb vill remove duet from cba mam9! braatbiag aoae.
Tba 4aac eoaerol ayatam for tba atv Flatvara Flalablag Ltaav
vaa cbovgb It la mev, baa 4aalga problama vblcb vlll reader lea yarforaaaca marginal oven vn4ar tba beat. aoadlttoni, aa4 la our opinion vlll a4obta41y prove to bo maaccapcablo after a parted of normal mao; it abonld tbartfora ba ra* doaigaad*
02 401 0446