Document 2q2dBjJeKOVGMDnXEDpaBBO8p
FILE NAME: Z< DATE: DOC#: Z< DOCUMENT DESCRIPTION DZZ^Z
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Buildi~g 70~108A
::N STITL"TE PLA.:.\ '.;'
J.S B. ~J .. ::1Hchell
"V,;r- J. G. Perkins Mr. F. '\-Jilliams
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ie.pril c. 1976
J~. t:..... Inciustrial Hygiene.
Y01..~ have asked: tr..a~ :'IteaSUI:ea:.en~s DC rD.a~e of p2rsonnel exFo3ure. co ai:coor::le. 8.s;J:stos fi"oers \vh::'le He::'g::-,ing d:;.shes are 8C'.::"ng ~repe.red ~o;; ",(","8;:'-
3. ue a.l"lalyses., OUt' T{~cords sh~w ;:J'-'~ac a si.m.i.1..aI: !11CCi.Sur el.!::8n:: v/as I!lee e ~!1 Specif ications :..abora.tory ROOT:! 205;- :-larc:l J.0~ :: 9 75, E.::ld '"as reported-co De slightly above. 1:r.resl,old .Limi~ value ('ILV)
:hre.e det.errl'1ica tior:s :'18:,2 recarlcly "!y~eD. rn.ade by f ieer filter s8.I:l.plers '-.lorn by ernplGyees <..rLlle prepa:!:"ing sam?le dishe3 Analytical :i:.,abore.tory Room lQ3. T::e L'esu::'cs :):: t:l:Se. sE.fllplings fol1c,oJs:
COllr~ "I:' on :'1'. t:le are as
Date
j!'iber CounL./r.1~
12/22/75
Ii.~ Devers
"":,,/12/76
D. Da;"::.ca
3/1/76
J~ o~ G:)oci
,-1 " '7
\\ie oose:cveci. eacrc of ches::;: samplings ~c ;)2 simiLa:c in techr-.":que 2.J..~d airborne GUSt. \~as !lot vi.siblE: in e2.t~. e.:c i:lsca~o.c:e.1> tas dust exposure is curre~tly 5 fibers greacer tha~ 5 Nicro~e~ers iL leng~b ?er cc of air as <1. c:ime "leig::tteG: avex:age ('l":lA) aild a cei:':::ng va:i.ue no;: '-0 exceed 10 fii:le:cs grea:::er thai"_ S rdcromet.ers i:::l. :"'engr.h. As of July:' ,> ~.97c .. ta.2 IlV ;..-El be rE:G.uced to 2 :: iDeo:::: s as all OSHA allowable limit:.
'i'hts joo t:as~ is 0;:-;.2:y h:frec.ue:;tly )Erfor:ned and i':: is unl:_kely t.ae.. t ti;.e i'LV as rilA \'iou:i.d ever- be exceeci eo. ']"r neasureme.n::'s, hmvve.r., 8:10';] t_-t'1..at t.hE: cei:ir..g le\re:!.. can ~JE. exceasiveol T'\ic~ t-[l2.reIOTe, T{"':C(}m:nend. t~~c:::: -~,jo:ck involving preparatio:-. of samp}.e. dishes with as:;,e;~tos fibers be perfon:ccL
w::'thin an exhaust vem::i1at.e.G". hood,
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UCC 008858