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this document was not a record of - [Industries, inc. did not come from -Norr-- 25!;ES AND cannot be authenticated '^'fiV-PPG INDUSTRIES, INC NOT COME FROiV 3 u PITTSBURGH CORKING CORPORATION Minutes: Meeting of Union Workmen's Committee with Works Manager in his office 6-10-63* Present for the Union: Mssrs. Edd Land, T. W. Walker and J* Musick. Present for Management: Mr* J* W* McMillan and Mrs* Dorothy Meek. The committee brought up the question of why a fan had been removed from the savr room, and was advised that two of the employees had started a squabble over where the fan should be located; that the foreman, Mr. Bevill, had ordered the fan removed until the problem could be eliminated* Mr. Land advised that at one time there had been two fans located in the saw room during the Summer months* Management agreed that if two fans were needed in the. area, they would be supplied* The eommitte then stated that a non-union employee, Kenneth Medlin, had been criticising the Union and some of it's members, by making slurring remarks during work hours* Mr. McMillan pointed out that a Steward in the Union, Don Glawson, bad a short while before, been quilty of the same offense toward non-union employees, that when the man ager brought it to their attention, the committee had done an excellent job of putting a stop to it, and were congrat ulated for so doing* Further, that all employees were cover ed by the same restrictions, that this sort of thing would not be tolerated during working hours, and that Medlin would be called in and stopped at once* The manager advised the committee that the Company had arranged for the Industrial fiygene Foundation, of the Mellon Institute, to make a survey of the dust control equipment and working conditions, relative to any dust problem that might be found* Further, that if a work spot was found wher dust could not be properly controlled, after every effort was made by the Company to do so, then upon recommendation of the Foundation, there would be an enforcement of the use of dust mask, by any employee working in that spot* Mr* Walker then stated that he felt that Section 2, of Article 13, in the Contract, pertaining to Holidays, wasn't fair to the employees* a 4?as V.* v/ PITTSBURGH CORNING CORPORATION THIS DOCUMENT WAS NOT A-RECORD OF PPG INDUSTRIES, INC. DID NOT COME FROM IT'S FILES AND CANNOT BE AUTHENTICATED BY PPG INDUSTRIES, INC. ' Minutes -- 6-10-63 NO ft: TU'T NOT 'f. j>lJT Page 2 i V i 5 K-4 iLia. Mr* McMillan then pointed out, that in aa aueh w it was in the Contract both partiea were obligated to abide by it and certainly should do so* Mr. Walker suggested that acme type of Piard rail at _ the edge of the truck shipping dock is needed. The subject was discussed. 1 Works Manager's written answer to Grievance dated 5-28-63 by Bass. Mings t Williamson, re: Builders working on oven conveyor, was returned to the connittee. -W''- , * ' Meeting adjourned. '' ' ` *i '. ..v' ^*m'7\'*j*".-r` " ,v -- .* . -.T *w^>*- , -* 'V '*,/'V'>/" ' , : Signed for. Workmen's Committee - ; 'i w.,: ..r? - --5*-.4,:'-'a*i*rw^-*jr A.'tf *5.< .fn-v** *** -tf--v> ~.'V3 -r;_ X;~*r- .'w*-../-' ,'* Vp^. *"i{ | BB 0023443 | ! - 1 . JT ,-.4737 .* * . THIS DOCUMENT WAS NOT A RECORD OF PPG INDUSTRIES, INC. DID NOT COME FROM IT'S FILES AND CANNOT BE AUTHENTICATED BY PPG INDUSTRIES, INC, NO.' NOT CUfc'i.e r.ij' J/. - ; A- c*f //rr**.x' < ~ /trsAnew- J/jvizr. Er.s ivc/.' */r /'T/ **</*- * * t rr -r.. --* * (bern-ifylrC s<* ((</ cT j&tri_ .. ' r'/'~ r*-- * *' '//ic: *L r.--M'.r SS/: r~ U-r* - . _ ^ v? c- * /.<* -. 'V^*'/V~ .' ,,.r i-.` ^ /f . , -, CryS;Zce*z ^ ~ w - - _' / ^ , v : J iT"- . J V>^/. * / r **' -V - * i:T*r'r-J, - fi*S *:<-:rS*/f`.r t^ffL si <*'s/t/rf<//---*'"/3f. r.##f , -.r 3 . '- T- -- - , *. r. jS'.'r/'fi'srt. t'sr'fi*'<LC ^/ytrLT^ AsrjrS^/crfjt ,, **/&. AsTs/s/s/s 1/ VW . 7^ Z&rgZS'dSi *s .JZ&rir/rt/Ylcc- As."-- - -^fisycyj tf?/ u. J'tcZ&kjfifA. yssee**: ykj -Brcs,". BB*"0023444_]_ .4?3S THIS DOCUMENT WAS NOT A RECORD OF PPG INDUSTRIES, INC. DID NOT COME FROM IT'S FILES AND CANNOT BE AUTHENTICATED BY PPG INDUSTRIES, INC. f 'rr':i .'S.'S? }rry:^ i/: \y - NOTE: .... ........ r " ' NOT CGiViE irKG:vi ^rG FiLeo fyr'lKS - . w 'S ft ' fa lY W~uCc Jt ' V 'W . iffr ^v'Vr.v' r .'S/-:: f r .: :.f 'sS* : * jr _ ,, ' * 1 *ffcr <rssr'siryy&zy>' - 0fy? . - " -Yfcrsy /? f. Sr'/' Tc'+sl* . ^ft r ftrs.*V/ ^ ~- r . .*y ' _W*-^ ?C fs'c Y /f /, stf /J'fCf/srrf -. . /. / * . r* * ~sr*y-tr c*rfw.V:> * ' '^ *sS/~y r s,_ * f~ :.* i \/'j/_______ ft r .ssrsf'f if- *if?r ?csf+v r-V './>*** *' < . *.///// ? ` . * -* * _r` t-.-*** mff f - * r^C'^-e* / . /fsr "` 4 . */ft.^ /'ff'dsYz 9 -Zv-**e&( &/*fhf. - -- Sl*s*rf rsf Sfr Cw/r...*.:'. . TSfH4JfdTfft />/. - - v ----------- .--7 * *; * *.-f-ft* r' Of/rfz*t&'t br/tff-csC yOlw v # uri i. * " -- -* -------------- *y--** - / Vf<f .. _jsf9<sz<4rf'frfTi</tC /f&yJicsLC if* *- XjC 'iff'.. ^ v."v..' /S' rr , *5^/? _ <Sfr jf'rryf Pgr^/Uff- /rr/C _ ff Yfr .sLt, 1C fntffc &rc<J A'" ____ Z'ssc g~fYyffyssy. Pf&* .</' .r -^rtf^Y^/yyytyAf 'Yct-f-iMc yfy^ ys// CyttC,r>f /sO/w' Ar. 'Uf'/Lrt'/------- * J BB 0023445 | 4.739 V THIS DOCUMENT WAS NOT A RECORD nr MPT" ' IT'S FIL^S7MnES'JNC' DID N0T C6ME FROM ^ 5 f~ : '' * ^ bys^S"^au^nt,gated MOT-CGiVIE FHOjV^ PPG nitS ~/{<c . ;V. r.* - /* :. ./.< * - L .- ...... (<ff _"V '/ .*V- \ */f" sct\: y " v,, .* * m * < --//ss* -rTv.^ f ^ C*rr?t'~/~ /sri&tic/*** r^'tft ' I ft&rA*<'Jss>. Vr<rW-"' ^ ^rrrrsft <** -c/ >r*tTC''^*rt _ve>'7^'~ / JZatZ-cl' *5w*e*.C. &6-e'f<'&C "* Gft*&*rr/b *&Strc6}f/Sf .*> '._. - .>..:._ r fA(A&L - ::>^ 6c yc/fr -&/rt n?r f w '. ttfC/Qr ^Z' ~Z4U3C* --^cr ^ jfiCcT . r. /X'. :*. -'. ^,- ... - - , . ' V' v.^H ^t/*1^ ^t/^cT^/Z 4erd^ti*-U y4z : ~SZccz6ms i&fn&nf *fe> &*++v-tn.t: *cu<t - _-i. ^lU*UcZ* '&***>/Le^&+*&C J"- .:' -: j,f*Vi----v"-->tA / INDUSTRIAL HYGIENE FOUNDATION. OF AMERICA.INC. * MCULON lNTITUT*.. 4400 FlfTH AVCMUE Fitti IS. Pa* Report on NOTE: k ^ i C \ *VU i V it* f o EVALUATION OP THE ASBESTOS DUST HAZARD IN TYLER# TEXAS PLANT . *.' oi the ; --y x. . -x 7 rt. ' . PITTSBURGH CORNING CORPORATION ; z-- Samples Analysed Byr Kettering Laboratory Cincinnati* Ohio . ^V*^--. :.o-fe>icro r(Mh. . v ..... ` - -,- *, * - * 4f. `fi jf'i* .p.*w *,*> ': " b -T i r-r-/<"*Vs**''*'*?: *:'r'HL iera.V*.>*:r'*v^*!v-,*: - , William J. Schreibeis. P.E. : " Industrial Hygiene Engine r - *;rt< R bert T* P. deTreville. M. Managing Director V>,W^Z'v45l^'vnitV^.f>V :/' -7 V= f , , - .$**' . - _. V^v' -* -- *v/ Tr'-w <^*VI f V -t* 'V W * - 1 > . * ' M *eoe**ToM of wnuniwc* eoe w* **A"c****fT *" w**ONfuw msi V ^ ' i~*v,*.L- t- -- I THIS DOCUMENT WAS NOT A RECORD OF NOTE:],;'.' . . PPG INDUSTRIES, INC. DID NOT COME FROM IT'S FILES AND CANNOT BE AUTHENTICATED NOT COME FROM PPG FILES' BY PRO INDUSTRIES, INC. INTRODUCTION On July 6, the plant of the Pittsburgh Corning Corporation, Tyler, Texas was visited by Messrs. Jacob Cbolak and William J. Schreibeis in order to review the potential health hazards of handling asbestos during manufacture of asbestos pipe insulation. On August 6 and 7, 1963, sampling was eondueted at the plant by Mr. Lawrence J. Schafer and an evaluation made of the airborne dust concentrations. DISCUSSION OP RESULTS In Table 1, the concentrations of particulate matter, when possible, * are expressed both on a weight basis and as the number of particles present in one cubic foot of air. Samples collected with the high volume sampler and the a electrostatic precipitator were suitable for gravimetric and other analysis while amples collected on membrane filters were suitable for dust counting only. The number of particles present in tbe air as total partieulate matter and as asbestos fibers were determined. Any rod like particle with length definitely greater than width was considered as asbestos fiber. It may be seen that the per cent of fibers in the dust varied from a low of 29% to a high of 56%. The dust in the sawing area contained a slightly higher content of asbestos fibers than did the airborne dust in the production area. It will also be noted that more parti* * ' eles f dust and fibers of asbestos were present in the air near the scrap crushers , B~00*23 44*3 j 4742 r -- t THIS DOCUMENT WAS NOT. A RECORD OF PPG INDUSTRIES, INC. DID NQT COME FROM IT'S FILES AND CANNC5T BE AUTHENTICATED BY PPG INDUSTRIES, INCi NOTE: T ' - NOT GOiViil i _ i I < `-"U than, 'surprisingly* wu the cate for air in the sawing area. The valu s in *' Table 1 followed by an asterisk are estimated counts taken from the straight lines in Figure 1, fitted to the data by the method of least squares. It may be seen* that the dust counts and the mass concentrations are closely related. Figure 1 offers the plant a rather simple method for estimating the numbers of total particles and of the fibers of asbestos present per cubic foot of air from the mass weight data and volumes of air sampled. * "y:v Highest dust counts*, at the threshold limit, were obtained in the eas of samples collected at the scrap crusher. The highest concentration'of dust oc- *curred for the five-minute period that the three-unit dust collector in the saw area was being cleaned. The air at the take-off areas of the building machines _ ..Tv-Vv:>v^To`:K^'''` :_ was the least contaminated with dust. ^ 'V"it"should be noted that the threshold limit for asbestos* (5 mppcf) la , * , vS- j .* . . ^ LT - * - 1c'.*- _r' ` assumed to apply only to asbestos fibers while dust in the air of the plant will contain other particulates* including filler materials used in the process. Slnee - there is some evidence that the most active particles are those fibers b tween 20 ; , . . y-^-. ,- ' *. / ' ' and 50 microns in`length* the numbers of fibers present in various size categories .T .y. * T; . : r .'y*?.. < >'r- - . ' were also determined. These data are given in Table 2. Data in Table 2 and the asbestos fiber counts in Table 1 were used to derive the data in Table 3* As may be seen from Table 2, the fibers in the air of the sawing area were generally . shorter than were those in the process area. .-."y la Table A are tabulated the per cent of the numbers of the fibers of ".:*-Vv\ ~ - , L v..y. vy~ y* yy_ ' ' ` * . *. ' ... asbestos r, more properly* bundles of fib rs varying from 5 microns to less BB 002344 9*7 ^ r' . ^ j- -* , TM---- *4] 743 ^ vil ***? ~' ''H/'irj'v'/w `.-/fi'- w-" . _ _____ ________ _________ -- -------------' - " \ r ( > - THIS DOCUMENT WAS NOT ACCORD OF PPG INDUSTRIES, INC. DID NOT COME FROM IT'S FILES. AND CANNOT BE AUTHEtYflCA. ED BY PPG INDUSTRIES, INC. * * J i \ ; * 5 I i "Ci ii ii than J- micron in diameter* The fibera is the air of the sawing .area appear to have slightly smaller diameters than was the case for fibers in the air of the pro The results of other analytical work performed on these samples are given in Table 5. As may be seen dusts or fibers removed from ihe air in the t production and sawing areas did not contain any free crystalline silica* Two dif ferent samples of Dacolite contained variable small amounts of quartz and cristoba- ' lire* Izi view of the warning printed on each bag*, the low concentrations of fre silica in this material were rather surprising* It would appear from the analysis of the samples that were collected only at those processes that appeared to be the principal producers -- 'i' _i \ .* v ^ - j-;- > v* ^\jf-v-v._ '- -V,v s, -. > ' ' $* - -J.r *- \ - . * . " .M of dust* that the number of asbestos fibers present in the air* with few exceptions* . *, "V - ' ' -"' " ; were well below the threshold limit of 5 mppef. One significant except! n was ' the brief period of time during which a collector system was being cleaned* Dur- Sng this period* excessive quantities of dust and fiber were being dispersed into the air for a period of about 5 minutes. It would appear* from an examination of ' the total numbers of particles*and of fibers as well as observation of the operations* * ' '**'!' - - *- ? '* v:V`-'- ' * *; JU^* '** that the crusher and the sawing operation may at times produce large quantities _ " **'-* - ; * ' ' ' of dust* However* the dust* because of its physical characteristics* appears to * -* >*.'- s'**" " ^ "V> *- 1 - *'* ' ' / * .* j- j-,,-. * , ^ ^ settle, out of the air rapidly. Particles of particulates in samples collected at * ' ' '.vV'i'S -Si; .V-`.7, s rv,-.-v ; ' ' breathing level heights* were well below threshold limits* even though s me op- .*-fc. , ... '> *' ' '*-v .iS +- v". i t>4 *, * ^- .. * ^ ' orations were observed to produce what appeared visually to be large clouds of . y.'j, Vj ' . t ,v.. - - / v' . dust* " . . ^ . | BL. 0023450 | . ' " ---------- 47A4 --1* ; .*v , - - ' - -*- * ' **^f ' SmS THIS DOCUMENT WAS NOT A &EC09D OF PPG INDUSTRIES, INC. DID NOT COivlE-rWOlV, IT'S FILES AND CANNOT BE AUTHEN riCA. ED BY PPG INDUSTRIES, INC, T*'*i ' T\ | \3 \J 5 L. NOT COME friOivi :\ptJ i ^ i a' '--ff--4 O> A4* The type of asbestos used in the plant is "amosite" an iron*magnesiuxa silicate. The specific gravity of this material is 3.45 as compared to 2.55 f r chrysotile, the material more widely used is this country. The fibers of ehrysotile are also much smaller in diameter than arc those of amosite. the minimum diameters being 0.5 roieron and 0.03 micron respectively for amosite and chrysotile. Another factor in favor of the rapid settling of the fibers from the air of the plant is that the asbestos bundles are not given the drastic shredding as in the textile industry. RECOMMENDATIONS *At no time during the survey was the air of the plant contaminated with dust to the point to affect visibility, and one could always see down the entire * length of the rather long building in which the operations were being conducted. # Nevertheless, our observation of the operations leads us to make the f 11 wing recommendations: 1. There was an obvious need to institute a better housekeeping pro* gram, especially in the sawing area. Floors, equipment and other structures . should be cleaned regularly and frequentlyaccording to a definite supervised schedule. Dry sweeping should be avoided and only vacuum cleaning equipment provided with suitable collectors should be used. 2. Hoods and ducts should be maintained in good working order and all breaks and leaks in connecting duets, te. should be repaired pr mptly. / I'bb" 002 --------- . 4745-  SWV THIS DOCUMENT WAS NOT A REOT\BpOF PPG INDUSTRIES, INC. DID NOT COME FROM IT'S FILES. AND CANNOT BE AUTHENTlCAiED BY- PPG INDUSTRIES, INC^ NOTE: TH^ rrr^-"" t 4 N.0T COiVlt fhOi-ll r,'-u r 'T lo 5. 3. The hood* and the exhaust system at the wheel cutter in the aw- ing room should be improved. * * 4. More space should be provided between the sawing equipment to reduce cross-contamination of the air with dust. 5. It is suggested that the crusher he fed by means of a short con veyor system in order to keep the operator clear of the cloud of dust pr duced when the machine is in operation. 6. Operators should be educated in respect to working habits which will reduee the dispersion of dusts. For example (a) carts of crushed material should be moved from the crusher only after the crusher has been turned off and a brief period has elapsed to permit dust to settle, (b)'Work should be rem red from the large slitter only after the exhaust system ha* cleared the dust from the- interior of the piece being cut. A wait of only a few seconds would accomplish this, (c) Bag collectors should be opened only when the discharge end of th '* lector is closed. *'* ;r-. . col- : T, -v . .. ,* ' ' _>T*: s-*1* ... a -is***, s . -.y-y ,, *4 ,'i4. ... . t. ' v&yj- . *. * j.- ; zs jf- f.-.wi- '. . I BB 0023452 I -\L * ' f'*V* * .*>*>>*:-*- -"474S^ -i . / . ...... .-T - 'iSf-- * " -J o3i!j odd i/yojjd 3woo ion v;; Giti iN3i/inOOO S!Hi :3iON ' . v* " r;ti *>... * ` f<;r09* vs* ' : ' > . r -:: : v ' r fv*.- TiUi I CmtMntlmi of Partlcolate Matter la the Atmoephare at ViiImi UciIImi In Ikt Plant ml tbo P>H*tr|k Ceralng Corporation at Tylat* taaaa Sample Ho. Bate 1441 Tima of Day PracaaaAraaa o -r--I7T Hilt am * Hits pm 14 /4 It40 pm lilt pm Doactlpllon ant Location at Samplo, Matbo4 of Sampta, Catlactlan General air Avar tba acrap ctu(tr( High ootama aamplal Breathing tone at the ecrap croahar Ml Klactroatatlc precipitator acrap wae being croaked. Wtight * ftorober af Particlea |mpp<f| of Doat . % Fiber# In Mg.At* Total Fltarl --Tot--al D--ot! l.l U* a , t.S 4.1 II ! -i j| {2 j jI#n-> !, ! e* i /f llttOM 11)04 pm Breathing cone at the Oetap croahar white A Mllllpota filter acrap wea being ctnahed. t l/4; Itll pm 111! pm Breathing tone la the acrap ani aabeatoi Cloctroatattc precipitator Ittl area. . ' \. IS /4 llitl pm* It44pm Oenarat air In tha acrap I aabeatoa High oolnma aampler feed area. If */r Ittll am |0:SS am Breathing tone In tha acrap aal aabeatoi Mllllpor* llltar feed area. 1 ' '' 14 /> IttlS am * IBtlS am Breathing tone In tha bolMlng aal lM oil area. 4.1* J.l* vi/l V, \V c tt rv Sawing Area l e/4 i t A s' /4 a 4 A 0t)0 am Itill am * General air between tha large edging Ian; and tha large aiming aaw* tl4 mr I* fill .| * Silt am * Silt am l Silt am * fOiOY am Breathing tone at the large atlltlng aaw while plecaa I 1/1** Ihlch ware belhg cM* Breathing aona at tha large edging aaW while plecaa f l/t" thlch were being eatr* Breathing tone at the btl and of the fclactroatatlc precipitator large edging raw white plecaa I 1/1" a Ihlch were being cot. , 1. 4/4 It IT am Mill am Breathing aona at tha large edging a*w v. felaclroatatla pradpHator while hear* welted plecaa -ware being eot*\';y. THIS DOCUMENT WAS NOT A RECORD OF PPG INDUSTRIES, INC. DID NOT COME FROM . ` irSJfcES AND CANNOT BE AUTHENTICATED BY INDUSTRIES, INC. ( s*' . !;V ;i* ">-' '-T . ' V:' V&:; -i '* S.S 1.4 l.t (table contlnerai aa i i. * j t THIS DOCUMENT WAS NOT A RECORD OF PPG INDUSTRIES, INC. DID NOT COME FROM IT'S FILES AND CANNOT BE AUTHENTICATED BY P0PG INDUSTRIES* INC, I. titli 1 .. tW fit Cento! Ik* Totsl Nimltt ol Aebeeloe Fiber* Occrrln| fit Verlour Rtit|ti of Ltn|lli 1 Sample Dele N . 114* Tim* of Dir * Description ami Location of Sample mppcf Aebeetoe Fiber* Pt "TT A?* 57T* *|40 pm - lift pm Breathing ton* at it* acrap ereikii *Mli acrap being eraehed. 4.2 20 9/1 ttiOO N - 12*04 pm Breathing aona at th* acrap ttrikir *Mli 1.9 acrap w* being eraehed. 9 0/4 Itll pm * 1(4* pm 1**4 are*. 0.4 It 9/1 I0t*0 *m.> t0t99 am Breathing aona la tht wrap n4 aabeato* *.S t**4 area. * ` 1* 9/1 IftlS am lit)} am Breathing aona la lha building an4 t*Ve-otl at* a. *.2 Length a of Fiber* tn Micron* cl 00 <50 < 40 <10 <20 < io < i ' < 1 loo 94.2 14.2 T4.4 $9.1 21.) 0 too Of.T 98.2 90.1 14.4 It.l 94.4 It. 9 1.9 49.1 91.9 tf.l 44.* .19.4 I f ov 100 ft.* It.* It.l 14.4 19.9 *1.0 0 94.1 88.1 *4.4 5.9 14.4 91.4 tl.9 0 |i*l( At** * /* i S 4 * /* 0/4 /4 /* 1 tfl 1 ^ ss! CD * ^! W 1|UjPll| till *n ftll im Breathing aona at lha targ* aiming M while plecaa 1 I/I" Ihlcfc war* balng cal. 111* am Breathing tan* at the large edging while piece* 1 1/1" thick were being cal. 1t5t *m |filt am Breathing aona at lha feed end ol the latg* edging iiw while place* I 1 /l" thick ware being cat. HtSf am ItiSZ am Breathing eona at the large edging eaw while heavy walled piece* were being cal. UtOO N - BraatMag son* at the large aiming aaw while heavy walled plecaa war* balng cut. IQtlO am lOtlO am til* pm . lt pm Breathing aaw* at lha block aaw. Braetklag tan* at tk* wheal culler# while block* ware balng cat. a 1.1 B.9 l.t 1.1 1.9 2.1 M 94.1 1.4 *.* to.l 40.1 40.1 4.1 100 12.9 10.9 9.9 19.1 41.1 4.4 91.9 92.9 9.9 tl.9 49.9 21.9 4.0 9 98.0 14.0 11.9 1.9 14.9 40.9 11.2 ov 11.9 11.9 It.O 94.9 1.1 11.1 11.2 0 99.0 94.9 91.0 98.0 89.1 11.9 O.t 1M 19.1 94.9 li.t* 4.1 11.1 29.1 0 0 V |TiU cit(ny4| M ATT" - r " j '1 ,/1 ' ' IW S ! > NOT COiv:T: i' 1 ' V' L >'a : r V, i 1 Lt- v> ^ i * THIS DOCUMENT WAS NOT A RECORD OF PPG.INDUSTRIES, INC. DID NOT COME FROM IT'S FILES AND CANNOT BE AUTHENTICATED BY PPG INDUSTRIES, INC. TiU I -- (Continued) A ttmfit Data No. Tima ( Dif l Sutlnt Aca (continued) "1 7fc Ui0. I2il0 pm * A IVilV in ICtlO am II A tilt pm * 1:59 pm It A . lt)l pm 1:11 pm 1) A Silt pm - 1:20 pm It A lit49 am - Ilt04 pm Description and Location of Sampl* Method of Sample Collection Weight ol Oust MiiAi* Breathing ton* at Hit large ellttlhg Electrostatic precipitator lilt heavy welled plccat were kl| cot. t a 10. 4 Breathing ton* at the block ta, Electrostatic precipitator 4.1 Breathing ton* at the akttl cottara *kU Electroatattc precipitator btecka were balng cut.. IS.S Breathing com at the kttl enttara while Mltltporo filter blocka vara being cut. Breathing tone while cleaning the 1-unlt dust collector In the area (down stream of dual cloud). Electrostatic precipitator HS.I General air near the J-wnlt dual collector Electrostatic precipitator $.4 In tha u area. AVERAGE TOR SAMPLES LESS WO. III Humber of Particles (mppcf) f. Fibers In Total Elbert Total Duet 4.4 1.0 If 4.4 . 2.1 4.0 t.) II 44 S.t 1.4 IT 44.0 24.4 44 1.4 o.t ).) I.4T 4T 44 R 17T. Ikll am - 0t44 am Central atr In the aabaatoa storage area. . Electrostatic precipitator 2.0 0.4 0.) it A ItilO am Iti44 am* Genetat atr In center at tha product stor Mllllpore tiller age area. -- <0.1 <0.1 * ViImi r taken from ttw curni fitted to 4t* l* Figure I. 41 ~i i 0X0tt II i lot $ iwilioK>t* 6 IS! I"! I-- t J NOTE: T NOT COsviCL I .U`wi iV'*-t Y b filES *.. , A.- ' ; fV;V `| ; ; : $r- ... *'. ' V'i' '..VV;. - ^ .r v> -p ;9 ' i- ,a . * ,. . : /. t t f r '- * * d\ iVv y.ivr ' O V: A"! .&v tiMi I *. (CmMm4| k -I>-tAf V. - fdl-V>. . . . ... ..... ..... ..... ..... ..... ..... .....s..... ..... "". ..... ..... ....... .... . .I. ... ..'. ..... .--. . . . . .I.--. . . . . . . . . . . . . . .,..-....M. ..... ..... .. ... .. ..... ..... ... ... . . . . . . .!... "*.7..:...-."rI`--` .............. "I -* v'l it ' S v* v ' - * t?cS'/-,*'j ' >4 ; >* * r* ,# i . * * * * !! *";,;<v '.v ^ V H. 't lib) 'J, TlmtV Pw ` 1 - % r DtuHitlw a< UciMw of niter# / <lo8`"L1 <mToiU<i l>*1 <r>u8 m^11In'<UH"lm<)i <8 :'!*{' t . "---- *--- 1----41----*1 *'-- too n.i n.i n.i ii.t * ti.t 4. W- -v vK ' */' " Ij; t X :|f 'i'tfl '] IttO m tti94 fm ' CMral elr wear Hm )*lt 4i| clltcl*|r .? . tft'" I8i iV*' >. ' .. *'-,t Ti-j a ' ...............' I* Ike eree . .' t - H.I H.t M,f tl.l )1.1 lt.9 li -- 10 */f ,i l/T !>) mi * (till $m Omni fir In Ik# Vit# #l#ri|# #?#* ; . -1' - ' -j till# am Ilif) m ` Omni #lr N c#M#r #1 ki M**"l ** C##r#f. * M 11.1 10. W.l H.1 th$ 41.9 I## r rik### 9.9 f ' :.V * ** \ . *. \ * f1 1 i1 ; * f ! ; 44 IV' '/V '-Sv;:.?* * >> . iU *sl ocn '* U !"! 1oI IQ 1 11 tcoo 11 Is 1 111 --Ci 1t1 . '# > ; : < i ' k . Cu f ' ,:,t of ' 'J ` : 1 > L t ,-i ~ 4,'f * . :y?/Ar.s '* 'N0TE:TH!`>.r':;:::iv7'T-n!D ; cNOT COk: niblvi i ; ia rittS v* 10 Table 3 -- The Numbers of Asbestos Fibers (mppef) Present in the Air According to the Range of the Lengths of the Fibers Sample No. 2 3 4 * 5 6 8 9 11 12 13 14 15 16 17 19 20 :" ' _ 7 L1 Millions of Fibers Per Cubic Foot of Air 5-50 Microns 10 - 50 Microns - ' f in Length in Length ' ."j 0.68 0.43 1.50 *1.90 0.39 0.25 1.10 1.07 o! O'j , i-- % ^ LU i-- i-- oo 0.90 0.40 1.09 0.36 0.43 0.27 2.40 0.67 0.78 0.26 20.70 6.80 3.06 1.64 0.25 0.15 0.14 0.20 0.07 0.07 0.60 0.40 0.87 0.46 *. THIS. DOCUMENT WAS NOT A RECORD OF PPG INDUSTRIES, INC. DID NOT COME FROM IT'S FILES. AND CANNOT BE AUTHENTICATED BY PPG INDUSTRIES, INC. / *J"bB 0023^57 . 4751 TH1IS^DCUMENT WAS NOT A RECORD OF PPG'1^PJSTRIE^ INC. DID NOT COME FROM fT S FILES AND CANNOT BE AUTHENTICATED > ' BY PPG INDUSTRIES, jNC. .. Table 4 * til Pal Cant efihe Tala) Humbal at Aabeatoa Fiber* with blameler Late Than tloii Stated *i Sample Date No. ms Time of Day Deecrlpllon and Location el Sample mppcf At bee to* Fiber a Proceed Areaa ~~M I7T* S:40 pm JiJO pm 20 ti:0b N - 12:04 pm V A lilf pm - ti4S pm IT s/i lOiSO am - 10:55 am 14 / 10:15 am 10:15 am Sawing Area . a i 0/4 0:54 am - fi0t am s /4 fill am - ftlf am 4 /4 f:5t am - IthOT am Bveatblai him at (be acrap cmlir while ecrep *H being cruehed. . t Breathing aene at the aerap crueher while acrap waa being crushed. Breathing aene In the aerap and aabaaloa lead area. Breathing aone In the aerap and aabeatoa feed area. Breathing aene In the building and take-off area. Breathing aone at the large aiming aaw while piece a of I I/l" thick were being cut. Breathing aone at the large edging aaw while plecea of I l/i " thick were being cot. Breathing tone at the end of the targe edging aaw while plecea 1 1/1" Ihtch were being cut. 4.1 1.0 0.4 0.1 0.1 0.0 0.5 I.T 4 A i~i si* cl 1ol * ;k,m' ii IS I i/i | cc I U, 3"itb #/` IS C/1 1/4 N If. 0/1 lltST am - 11:51 am Breathing aone at the large edging aaw while heavy walled plecea were being cut. 12:00 H 12:10 pm l * I Oil# am - 10:20 am Breathing aone at the large aiming aaw while heavy waited plecea were being cut. Breathing tone at the block aaw. Sill pm - 2tS0 pm . Breathing aone at the wheel cuttere while blocka were being cut. till pm - MS pm Breathing aone at the wheel cuttere while blocka were being cut. SilS pm - S:tO pm Breathing aone while cleaning the 1*0011 duet collec tor In the aaw area (downetream of duel cloud). Ill49am * lt>04 pm l.l I.S 1.1 1.5 1.4 2f.4 0.T Mlecallaaeoua " jj 57T tOiOS am - 10:55 Ceneral alt In the eabealoa atorage area* 0.5 Dlametere ol Aabeatoa Flbera (Mlcrena) < 5 <.4 < J <1 <r loo 55.1 54.5 (5.4 11.5 too 100 loo Sf.l 100 50.5 51.4 51.5 55.1 B5.4 h 15.1 4I.S 10.1 11.1 55. B 12.1 11.4 1.1 p G: 11.1 loo too 51.5 40.5 21.5 SB.l 55.0 51.0 100 54.4 5T.0 54.0 5T.4 51. . 44.1 BB.S 44.0 B4.I IB. 4 52.5 59.5 i.i cd ; .. ^ ii.s pn ^ : nn iu'3;v' loo 100 55.1 50.0 loo 50.5 54.0 50.4 51.0 5T.4 51.0 55.0 SI.S 55.1 .51.1 45.1 (S;: 11.5 . ii.s ;. U -> . - --n ` 10.4 *i.s F nt 10.1 19.4 C/'- " * 44.1 14.1 loo 55.1 51.2 Bl.l 10.5 $.0* * *5.0' c 7t*.o a +* U. O I-- o o Q 3 < ui CO .. o. O t~ 1 Oz o-laV#) - Ui s VUJ) 0 nV) a o O Z < Uvii V3Q) Z O cn XH oQ. Q. lx, cr_t C aCL. CQ 13