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JUN 3 0 869
William R. Bn/Jlcy ami Aviriates
iNymOHHINUI III All II COHtllllAMIS
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PLAINTIFF'S EXHIBIT
I K-937
June 27, 1969
Nr. S. R. Thomas Director of Snvlronmental Control Owens Corning piberglas Corporation P.0. Sox 901 Tolado, Ohio 43601
Ra> Bnvlronmantal Baa1th Study Berlin, Man* Jersey Plant
Snvironxental Haalth Studiaa on work environment were eonduetad June 17 and 18, 1869 at tha Sarlln, Saw Jersey plant of OwensCorning Plbarglaa Corporation. Tha currant atudy was a follow up lnvaatlgatlon of a study nada in September 1968 to determine whether Improvements hava baan made in laaaanlng employee exposure to tha inhalation of duata Including aabaatoa flbara. Tha plant procaaoaa insula* tlon for flat aurfaeaa and for plpaa la various slsaa and thlcknaaaaa ualag aabaatoa, slllea, dlatonlte and a canont as main Ingradiants.
Measurements vara oada of In-plant nolss intoaslty at savaral locations, which Include overall nolss prossurs anargy measurements aa wall as octave hand frequencies* Solas measurements wara nada at those locations where prsvleus
Maauraaanta indicated nolsa exposures of enployees exceeded Am seals intensities above 90 decibels.
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The dust
oeUaeud by the toplaymat
technique using triple distilled vitar war* counted udar
100 a light field alcroecopy* The neebrane filter staples
vara evaluated la accordance vlth tha nethod for tha
enumeration of aabaatoa duat on aanTirana flltara aa proved
by Sdwards & tyaeh of fena 0*1. Public Gsalth iervloe* It
la recognised that aoobraoa flltar technique la aoly aa
Indication of tha presence of aabaatoa flbara la air
developed for tha aabaatoa fabrle Industry* St la further
recognised vlth tha inplnger technique that aa aatlaatlaa
of tha presence or abeence of Aabaatoa flbara of reaplrable
aiae gives answers that are ralatable to tha toxicology
and to the Instances of asbeatoala la Industry*
Host of tha batches prepared for production of
Inaultatlon products la tha Perlla Plant contained batesan
13 and 20% aabaatoa or dlatonaeeous earth aid represent
aa even analiar percentage af raw product by velght Involving
reaplrable aiae aabaatoa la tha fora of flbara.
lae-ra
Generally speaking airborne dust la tha verb
environment has lessened In concentration* Ibe exhaust bead
at tha flatware finishing line loading station should bo
extended la acoordanca vlth prior design*
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Hood enclosures about tho bateh nix duaplaq etatlons that ara mechanically exhausted also should ba installed. laprevaraants la exhaust vant1latlon hood anelosura should ba aada at tba finishing Um station. Tho *b" saw and tha C* im should ha provided with mechanically exhausted hood enclosures an tha lategrsted llna similar to thoaa lastallad on tha "A* saw. Where dust exposures axeaad flva nil11on particles par cubic foot of air. control of tha work environment la recommended, la eases where tha dust count is lass than flva million particles tha quantity of aabaatoa fibers la tha bresthlag sons la of ouch a limited quantity that occupational illness from ashestosls la unlikely Where dust control by hood anelosura af tha process with mechanically axhaustad ventilation done not reduce operator exposure to dust conooatrstlcns less than flva million particles per cubic foot of air. then respiratory protection la tho form of approved typo aesks should ho won. these asks are classified aa toxic dust respirators, approved by the V.S. bureau of Mines la Schedule SI. These respirators ere similar to MSA Dustfoe typo msaber IS. or similar respirators issued by willsam Company, me American Optical Company.
fharo art a fow locations la tho float wharo aoiao measurements exeeed to doclbels on tho "A* seals* Consideration should bo flvma to aoiao roductioa by control of tho aoiao aoureo* Zf this la not foaalblo thoa tho voariag of oar auffa on tho port of employees la recoeneaded. A now. aoiao aoureo u ovaluatod ia tho float* This lavolvoo disc grinding on aotal forma ia tho Hold Shop
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iMHaom bust aimsLga
Sample So.
Location
Millions of Particles Par Cubic Foot of Air
Vuabor 2 lino stripping
1.0
Flatware lino* Peed Operator's Station X-10, 2 s 18 x 16
Flatware line, Top Sander Station X-20, 1H x 18 x PS
P.t '
2.0
Patch nix floor while charging Aabeatoa tanka
4.2
iv Patch nix floor* south
hydropulper
4.0
Platwaro finishing line Packing station X-10 1| X 18 x 26
S.l
Flatware finishing line packing station X*10 produetilH s 11 s PS
s.o
Integrated line - "Pa saw X-10 prodoct* 3 x 1 x PS
13.t
1* saw IS x Vi x PS
Trisect* produet X-10
2.7
0 Vuabor P line pouring
1.4
1 umber P line stripping
1.7
s Vuaber 2 line pouring { 1 Vuabor 1 line pouring
1.8 1.7
C<5W
Sanplo W14 IS 16 17
18
18
80 21 23 2) 34 25 26 27
ikpinosp. war Wtfg (cent's)
IfiSAiim
Batch nix floor, loading Saat-Wost tanka
Millions of Particles
m it JdL
3*9
Bateh mix floor. South
Bydropulpor
3*7
Band aaw, ao. 1204 o. 1547
2.9
1' aaw faad and 16 x 2s 26i irl cut K-10 product
2*2
*B* aaw operator'a atatlon *10 product 10 x 2 x 36
13.
Platwaro flniahlng product atacking lJ> x 18 x 361 Coro product
4.9
Platwaro flalahlag stacking station 4.8
Billot lino foadar atatlon
2.2
Billot lino packing atatlon
2.1
Platwaro lino top Banding aroa
2.7
Platwaro lino food operator area
4.1
Xntrgratod lino aid wrap dock
1.7
Mold Shop, natal shot Blast aroa
2.8
Outdoors 30' west of no* 3 and ao* 4 bog collectors
1.8
6-350
ample 0
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BWri FILTER 1MOLM
Location
Bateh mix floor vhllo
charging Aabestos tank
latch mix floor vhlls
charging hydropulpor
Flatware lino food operator's station
Flatware lino top sanding
Boxing flatware and packing on skids
Platvaro 11ns packing station
flatvars lino peeking station
Sntrgratod lino *B* saw.
Band saw operation
A- sav
Aabostoii fibera/ec.
Total
fibers graatar
Ubors.
than 10 nicrona
OS 04 t
04
.02 01 01 000
.02 Oil
02 01S
02 Oil .11 OS 01 000 02 ou
f i
i
i'
<s8)'
' H0IS1 MgXSTOaigMTi
pl Overall I/V<1
A'
100 99
104 103
7 96 *4 9
07 94
90 93
3 90
3 91
9 7
10 94 93
u 113 110
21 *2. 12k m m 1000 3000 4000 8000 16000
6 84 90 83 83 89 93 97 83 80
84 1 85 85 89 87 91 94 101 93
83 83 84 89 83 89 87 88 94 83
83 83 90 84 83 80 79 80 91 70
80; 3 84 80 83 83 86 94 90 83
76 80 78 84 83 83 88 93 83 77
84 80 83 83 79 80 86 90 71 68
81 84 84 83 83
83 90 83 86 76
78 80 77 76 78 77 83 86 76 68
0 81 81 87 86 86 86 90 76 64
74 80 78 83 83 86 93 94 108 .88
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LOCITIOK OF NOISE MgASttRPtPTTS
feya Operator's tfask at roar of Mo. Sid Condenser
Zn front of Mo Sid Condenser
Discharge area of pro* hardener during fork lift truck unloading
bine If stripping end
integrated line* 1 saw
Integrated line* A saw
Flatware finishing line operator's feed station
Flatware finishing line top sender area
hipping area end ef flatware line
Hold fhop - natal shot blast area
Held Ihop disc grinding an natal fens