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Klttfttjurfth Oarttir.* Corporation ft* 37 fcjrv Allcjiico.', rcawrltwis- 1470
October J5 1967.* ,
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Eurwy? !* oon*:ct3d cs SF7*5bcr 1* sod 3* T?f? t osnlaei* Mfemftos
(Just expssuva
jwuf*ciurint stbcatoo j&po insolation nd to boat-,
In tho Clcse Uioc2 *=<i i'oaislais plant*. l-.r* !l J. iur# p*rpoar^l uiir.
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Ux cmpl** d'j'rt oTt*Jr'r* nab^rt** tr^j collected to aldgoi ljqalngsn
oonttlniiyr <i* silica - Icr, a ctraSiu*:!**! li-fctvield rlnrocecrfd tccinline wt
v-*ed to count oust,
tnriiceto t>jt o-meyirvo in oil ovcos oosopt ta^bcr 3
tort 141 ng c*ci-JLno x I irrh ^t-3 i=2itloo) w* Ish* than t} ti-j^shald Ucdl '
valao or 5 4Jlloo partieloa per eubie
et sir buad m sa Mtour <isi2r
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SnsiS on tio results of this swfinr th* tolltr&r^ renottvndfiUea* sco 'mdos .*
( C^ck btrtlcl-q tucjiiho HOcaxir 2 nrjrotio rorrrrrlr^ erd loeol ahfust v "i-i li.t 5.os sjvtcso to in*ur ;yro>r Oi*rstlan* Thoro X* * positive pressuro la tho UrtI4tr.g cellos osslosurs* . ^ ^
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; 2. tho jmsours of tbs soiln Ulest opraTlag sp^rotus* / ,'
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3* Coroldsr ItfMctlnc th hood lae&tod tX b-dl4*.-^ tatidno mn6*r 2
,. to point k?.'' It xlll tiVctiirci.T contril.durt, IVcsmtlr
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. It Is located ouch too hlib for aqjr eoatsol* ' . :* . . _ - U : * . ^ * ... X * " < t^'1
4* Froessd idtb ycvr plena to rods&l^t u aavlnt
5 Turn Um sonroctlvs hsator Irceiad st tb acvthsaut tho ecirp store.'* bln so tbt air blact la frw tho bln C'jrtrtnoo* Hs sir blaat Is r.
bln and blender local ochaust
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6* Contlwt jt>ur pro*ra of p* ' ------- ^ workers czpaaed to dust*
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NOTE: THIS DOCUMENT DID . NOT COiVlrFROM PPG FILES
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To evaluate b*ct exposures, cling psycLrjsoters *ri used to sssesur* di7 (TB) and set bulb (u) tcapermiures. A black globe thenoester vm ueed to nature radiant beat and Alnor 7alocseters and Velneter iuaior* sere used to neasure air velocities. All air velooitlee wi ssavured at ths bu'i position and not In tbc duet. Tbocs setsunsaaxta and partlaant calculations
an lncludad la tba attached table.
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At tba onset of this am toy tbs outside tasperature wma 77t with a
rslatlv* husldlty of 48 percent. H^snrrsesta vers first j-cds In tbs Class
Block plant. Air trc-craturoa matured la tie nan cooling Ctocts vers about
1CPP bottar than tha' out*>ld* teersrstor# lnolsating that tbs dvttvock sea
acting llks a fumaoe. Should tie outside air tesperaturs rlss chops C5^
the air delivered by tbs k-a cooling ducts sould Ixposs a heat load on tbs
asn rather than cool thee. Heat exposures are now eoaaidsred savsrs sltb
sa ontalds temperature of Tf't*
Host Street Ii.-iee* of 70 to 90 based on an S-hour dally exposure are
ceealdarsd coalitions that cy result In savers beat strain. AH axplaysss at operations evaluated except tbs turner A press or orator, .j-s exposed to eltuetloas that can Iced to severs bsat strain. Ibis Is teklr^ into consideration rotation of Joto and rest periods.
Based on tbs findings to this curve? tbs felloslhg rsoonaendet&oas are
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7* - Provide evaporative tooling or sir coaUtlddOg tor the
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Point tbs mi ooollng duet systsa tdtto slualnu* point. ' .
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7. If itall reflective shielding Ireodleteljr below the non
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ducts share It eressas Infrared best sources.
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10. Interpose refleetlve shielding between am end infrared sources*
Examples era tbs sliding cashlnes sad ccnvoyors. Toliotod
1U rsflset snout 99 percent of tbs radiant bast.
gofxriass PlUwti
H Operate evaporative eoelsre ehsa outdoor te^eretures exceed 5CPP. 12* Interpose reflective shielding beteeeo non sad infr^sd sourest.
In Toward to. ItosUbcrotfd F>rrorretli
13* Continue to provide salt tablets s^dT^oa^gd^rbsre to drink, setsr even If oat thirsty. Bacctfft^Arra? to salt food heavily.
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OontsonueaUh of Pennsylvania Department of Health
DlVlSIOi; OK OCCUPATIONAL IHEALTH
Kttt Stress Calculations
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Location Ur
Man's
Convective
Velocity
Position
Heat Cain '
ek T <C) i fps DB MB Globe BTU/hr
SX*P9 Pl'K* Want (eo^lTTC^tO
ff*M #1 (t prenn) T5
73 It# -10
#1 (at ulntow) ?J0
n Ilf
htH #t (at wcl^t
eels)
300
n Tk 05
Pm* #1 (i Mil) ijo K* m IU 07
O tP v ^
Radiant Haat Gain
(R) BTU/hr
1015 2070
2T70 sue
Mttabolisa (K)
BTUAr
too
TOO
TOO TOO
Erequired (M+R+C) BTU/hr
W5 2U4
3770 J3S7
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Pal A. Crtafea Jsfeisttlll
flats* TiaaPilafc ktetilsl ^yUnlsI
Iteaxliua Heat Stress
(<<.00 BT/ Index (H.S.I.
hr caul win) Ercq
BTU/hr
531
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*035 2100
ISA
M 1300
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Qxowrwealth of PemcylTanl* & Dopartront of KtoiLh
DIVISION XOUrATX^AL IZHTH
Oust Coneentrctioo*
Pittsburgh Corning Corponlleo Bart AUocm/# PconajrlviaU
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Ocncral cir, gnand . y storeg* bla m
tpsrater** axpoair* at bl*iar
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Thrwhald Halt Tala* >r dust containing *sb*cto*i
5 dillon fcrtlolM per cubic tod of air baaod on an t boar daUjr
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