Document 53dV7qJnNYJax0KEZRwj3zjz

S f" t ;%ar yiun.uoiATi?' iVKc*n? TfiCATUKar op' css :ii haveq utq: introduction Kvor sins* the beginning of our operations in this country, our raw asbestos has boon digested and purified by the General Ghenical OwBpany, ilaroua Kook, i>a. The material purified by then has been *&V-> lofactory in general Quality, and has required very little attention on oiff part. -- The cost involved in these operations has alvaya been considera ble, however, and about tec years ago, the writer beg^n a laboratory study of possible digestion prooesooe with the idea that w* night be able to reduce oosts by treating the aebeotoe oureelvee. Tory little progress was cud* at that tine beomiae of the nor* pressing Importance of other problems. .r Sarl7 in the spring of 1937* hovever, our HATED production in creased to the point where General Che&ical was unable to meet our - desands for ashes to a for several weak*., While the production rate tree later stepped tq>, and has einso peraitted the aceuoslatlon of a . satisfactory reserve, vo were at on* tine actually within 100 lb. of h&vlag no asbertoe at all. This condition, cm our basic rev asterlal, vas of oourse danger . out in the ox&xae, and vo again started our own study of asbestos tret' cent, as intensively ae conditions peraitted. ' : this year a1 furthsr ooBPlloaticm has arisen. The General Oheoick CoBpasy has found it nooseeery to increase our treatment Oort to 6-l/h, a pound, which brings our net cost, including rav asbestos and losses, y. to alsoet 104. This increase woe oaused by the need for expensive nee V : CQUipasmt, together with the stated fact that they had lest sonsy at v. the old prioe. The General ChertInal coapany's representatives told US that they would be very glad to assist us eftoulrt ve wish to treat our.. own asbestos. It was obvious frost the discussions that they would eel< - cone the opportunity to give up the operation completely. * Cur ctrn nobeatoa ntudy has, therefore; been intensified. A pro-- oeae has been uorked out on a small scale vnloh appears to offer proalFurther study on a Irjrgar coale will be required, hovsver, before the possibilities of the process on production can be evaluated. fiemen ***CH}m*v) . *i The aabastoa txeatxwnt in Germany, thick the writer lnopcoted, 0 sisted of the foHoeing step*} n - asoestoa digested <?4 hours with HC1 in open tank, heated by bloving in ateaa * PLAINTIFF'S EXHIBIT HAV-33 tabbies* c c .. # t> - oaia wrehod out partly fey decantation owl partly on * ipavity filter tcri>en ;* o - vet *bevoa racesvd by it&nd to a csntrifutse wnare iOh or who wetur sub rcMOVed d - asoeatoa dried on ^I^sh tr.tya In a iong clrynottae at a ooaerate tousnrrsturo only. Turned aver frequently by ixavX. . General Hhynja&l iypesa .. At :<nreu9 Kook tbt prooeac la baelcnlly tha sum a* toe ttaraan oue with alnor variations, After tha digestion, tha aanaatoa la washed by gravity on & lor^a ah&llov soraen cone 20 ft. .aquAro. ?hl la a vary alow proooaa. Then the nabaatoo la drjtia on a hut plate of about tha <301 size. - Connldaratlona on which our nreoeeii la tmimd In o^nftidarln# a digestion prooBf* for our ten use, va rajouted the above Altar very brief consideration, IxterAuo in our opinion, it ha* o^es vary serious oafacia. 1 - axuoASlr* nei fuae* frusa open digestion tfcnk .would oe out of the 'iUcatiou in-a *azzlt*a oacridity I lie Uuroh&lltun ~ 2 - Vr.c *oid la oon-uniiily diluted fc7 tha direot ahd\- tlon of r.toAti. Vhl results in lumj dilation tine diia acid recovery leposulbla. ooovs oi`8 hi*pi. Also, eerioua nr?ble..-\ of river poiution; sany pouivio por d*ty of acid snot be disposed of . 3 - 'brevity filtration a:id low tenpvjfature drying both soea very slow. Any proc ear., to bo practical cuui acoaosiical for our uae, oust avoid a fl2rl::us fuse nulaano And a aeriouc river oontaaiuatica fcsaard. It saiat recover r Ixr&e prurc of the hydroohlorio acid ajsd It asuat bo capable of reasonably rapid juanipulation. ^ a few attsaotM sora iSd to digeat Jhe juibvHtoa with HCi in & WAV;;3 Vd83l, by bloving in atusut c;va ***-,! to ting -icciwuiiaally. This process va- not .misubio, firft ohc-vu*** tns *pid oould ivot to raaovwr- od in sufficient '.umuity '*ji reocisa oocauwa t:# fibres wero UAdly broken up oy *in? stirrer. "eat, wo eet up two liter flasks and i/c.ilftd under rrtflux in She laboratory. ?>.s flaehn -wro c`^ay,M:1 eita 'iSbv^i-M nnd hydroohiu/io eoid of 134 coit;antr>;ti.>n. 'hero *-.n 'imitation uncavvc tiitt pro vided oy toe lti:oIf. .* oonoetstrationo irore utwd; tna in-_ vc?lv<ed 13 t.TJ of i.ua l^ri- iiCl psr aaoaa^ea, t^ u*aq C.*). Tho produots aa outallied -rure wp.ahecl 01 ar.^iyidd. . tj,en `islea Aiid . x j, suaswury i the recults follof?ej c PUtl ?*0. Digestion 1a*--V--J- Acid *'ntio _TieW AobotOK A/u*i_vcoe 9 1/2 13-1 97.5S 1.5^ ) 7 1 -. ... 13-1 95.1 l.*5 ) hosMstlo a.ebrt 43 13-1 9b.9 o.S9 > (.ntufttan ICUa) 11 fl 13-1 97.1 0.60 ) 10 1/2 A1 53 12 a 5-1 65-I 65.1 65--1 96.9 9S.2 9&.9 95.0 i.w 1.27 0.05 0.99 ) > IVaaaetio 5 AibCPtO* ) 1? 1/2 14 1 *5 3 16 7 &*-l 55-1 65-1 69-I 93.2 91.7 93-2 91-7 1*75 1.45 i.21 1.04 ) ) Isspartsd > Asbestos ) These sxporlatenia permitted the bellowing conclusions! Slsplo boiling tad or reflux with l*r> hydrochloric eold will resov the soluble Batter fro either ksa*ic or forsi! osbafirtos without Otiaplicatlons. - Abnut throe b.mra dilation la required to reduce fioiubl* o*tt$r dux specification of l.JOJ# or lose. The .-acre caiwentratad slurry os 6.5 to 1 la epnnle c* entirely saticf&ov;ry result*. Since the KC1 oocoentratl./n la :&t tjreatiy changed 1m this proves recovery by filtration wcocoas a possibility. rroa these axpsr luxate we fult that if a coa*roial aeons could b scoured of boiling the r*000sto a slurry under rofiu*, the beats of a practical process could be secured. There worn too difficulties in this. The first w= to find a iratiniuotcry arterial to us In heafef ing coilj for }X1 iid the second wua to obtain ft entlo/eotory laeane cf agitation vhiuh would r-ot break up the fibres. a A aall dimeter, fl* diaastax x dabp, vith ;t tight covor *sb* constrooted, uoln# JiAV*:*0. In the top of tain dlftostor, oxter/ding through it into tne liouid, w-. snuniod a Tonialua rrsiidic ret: tor, loaned to ua by "ho rnncteel itbtftl. ur^ioAl Corporation. Sor fc&ita.- loo ms blow 5iA2.ll tloa of oos;.>TSftNi eir in at the bo & ten. In order to provont loss of iiCl vai>or ** odded a asuil tmtor-oor/lod eoodrnsor, c^notruetod of K.a7~G with *yrex filics tunes. _ SsnrcrnJL runs wern aids usirtj; the dipolar described above, trestliv? ictoi'vod jtsoostoa. Ail run wore isaue vith e. onu*o of 3 ib. raw fteoeBtos oral Z1 lb. cf !? hydrseniorio ft id, ^tiiuh iAcoxparktJlft to the 0.5--I ~nid ratio used la tho laboratory. After the disostion the char&'e tss *ht3ped into h till **vrc filter and auction w oppliot. The filtered aoici vaa aavt*u and iirfsd in "he next aatoh. Then the -3'~r- *- - VV fcic'uoetoa <n;a washed several ita.-v until olenn, cn: finally dried -icd. &n*.i'/zod. ' - ' * Throe typictl new resulted AO ffll0W i PurlatlS 'e S Fdi ro'd.per Air rate Fun rigesiioh recov r.'o. Tin*? !!.C. ery pound <t,Abeotos cu.ft. ber ain. fAisebledstos AShoeto: Anal vel; i1d7 1 2 19 2 l.orh l.G&A *674-.55 1.093 61.3 i.odo 1.301 1325 0.105 0.105 0.105 91.7 39.7 91.7 1.21* 1.43* 1.40* In general, tuw prooch*n proved Ktiafcctory. The VimtvJLua boater v?>7k*d perfectly, and the air agitation mim1 to Keep the oasa thorough ly triced up* There wee ns serious degxefluxion of the fibres. * were able to recover 61 to 6%- of the hydrochloric acid for re-uso in the next baton, .*k! the yield* averaged slightly setter than 90* of the raw asbestos. All of this io:ko4 very premising. 7hero rtHaalnad, however, tw or three points cm vaioh we were sot atisflod. ?irx, our cheater was equipped with & cfcxsp valve, which concision tly plugged with asbestos fibre. The use of cuoh & valve on production w*a out of the question c:.d a' antisf*ptory duoping arrangeasnt had to uo warhed out ou the whole process was useless. '*eeotid, our dilations rer for c period too snort to yield satarial aeetihg ocr l.JG:-, aspeoificaxion. Third, e rooognired the certainty that &e the acid was used over again and eg&m, It would gradually increase in lepurliy until an cqui liferlua wee estobllaued. ie felt the need to 7un a auoh larger nua:>t? of be.tehee to find out whether the iapure asid woUld affect the ivua.lty of the asbestos. The dlgofitter uae rebuilt, including a rubber-feafcotod plug valve In ulus of the jiw ssaiitloned acove. This operated entirely wlth-jut difficulty, and appears to have oolved the dumping proolea, at least oa this vauUl else oquipuent. . Citn the rebuilt digester ww ran 10 batches for various lengths* of tins, saving the recovered sold fr-:>ts batch to batch. In this eerie re improved the recovery of acid ^yently by recovering, not only the first filtrate, but alco the first wash water. *th iaported and doasstiu asbostoa waa zreAtod &ud gave satisfactory roeulte. *~ After these 10 runs the ls^urity in the acid wns still increasing slowly and vac sosxi* distance frua reaching quillbylua. There was, . bovevnr, no progressive dworcue iu purity of the* asbestos. It w*a felt that the expense and tliaa (lontAaed in running a lar^e nuefeer cf. further bat oboe wo a not Justified. *e feel that the jssibnity of obtaining cure usbosto* with dirty notd has been suu a tent lolly ehown'i ^ although not conclusively proven. In ar.y case, should it be necessary * to dlaorvrd the acid After 10-10 ir 20 rune, the "amortisation* of that acid la so low as hardly to affect the results. natch No. In detail, the wwuits of this* aerioa or rui:a cro ft.e failo~8j , , lba. -- 5.0.of charge ^ V!dl anal. ohisrw rts. tise 4 tlfll TtfCOV . auriatlo per lb. n.nborttoe * Air Yield r*to S 2% 1.C37 17.52 4 25 3 C.fi65 .092 93.9 0.74 25 1.C95 16.(41 4 30.3 0.723 ,0?2 91.6 1.2? 26 1.1C9 16.30 4 64.8 0.733 ..092 91.6 1.16 27 1.111 16.30 6 31.2 0.8&9 .152 91.6 O.lSl ( tSK'CT 2d 1.124 16.12 6 51.3 0.902 .152 93.7 0.7^ cccesi 29 1.134 16.50 3 81.3 0.370 .152 91.6 O.56 30 1.140 16.30 3 HI.6 0.648 . .152 93.'*' 1.20 31 1.142 15.36 3 32.2 0.735 32 1.150 16..X) ? 32.3 0.818 33 1.151 ' 17.00 4 75.5- 1.0*9 >4 1.156 16.42 u \ .152 .152 .152 e 55-9 95-9 55.9 e 0.3? 0.7fl(-*aric 0.87 i iX'O *1 Theee runs provo to our own natiufaotion too prfcoiiocbllity of the prooat a outlined aiui the aao.ll eo&Ie *:uip3ent dovelopec to otrry it ->r:. To do Riga fro a this inforaatinn a full panic pirnt, Jsowt?, would c?u*a to be an ssoeodlngiy riiky proposition. The process and the eculpaant are so entirely different frwa the previous cvytnod that _ur drains if*fcreation is very Halted. * aali#ve, therefore, that nn intemadirte slue plant ch uid too ouilt, of aixut ;$0 lb. daily oivpfeclty. :Mu plant could do operated on iho basis of regular production, oitn clone technical control. It v.uid prove taore definitely the correotner.a of our dsaifcn and oetbod, and would yield store praoiuo deuign ana cost data. Accordingly, we have drown up completely o. oo-oaiiou pilot plant for an estimated capacity af ?0 lb. por day. '-' have calculated tu oiurely as possible the sales price and out-of-pocket ezpenulturos and present thca In the following table, (iwverai iteaa of thtuJpasnt ocnsiufe cS HA?EC tanks already built and the only coat on thane lisas la a cx&ll ua to adapt thee fox the purpose. Vhe actual lsundials out-of-ooufiot expenditure Is practically r,peaking the oust to ua of the pilot plant: vent . sJoaic%1 Actual or 'VJLes out-cf- pxAceut Itog yeorSntlon s*ra*ln.> s?uripV>r 'la- 'Tlon `TaoSst erporidit: 1 Oi^eeter JWS335 JfAVEO :eN ??24.p0 SI04.64 104.64 2 7nn.beatar y-20v53 Vunsteel P PC3.C0 2ua.co ?cs.co Condonoar 1^2931 l Cootion filter J-536 HAVEO 323.50 IS8.70 Id 171.55 61.00 1$8.70 54.^0 Vaouua r00elver 1^2536 % puacp 4r.(4222) n.n. ! ew 170.15 22.68 76.**3 22.6a 76.K 22.be) l<lziiU{ taiu: Vs-2537 rav:k Id &6.55 34.Co 7.60 I Ncutraili.;Ici{ ?ivdi 5-1&03-T. tt 133.24 73.30 2.13 9 10 Drl&r 3t trays :Jip '.WJ534 *>253-3 N ft .Joe 132.45 149.2b 59.^9 62.65 $9.49 2.65 II VtUVO 8 d-2538 ft 13 Iron pipe a install. n l* 107.80 59.^ 59.S3 140.00 140.00 140.00 13 *ood straocurs 70.00 70.00 7o.co 14 ffatsT aster 20.CO 20.00 c i/UW J ( '6 TT8T729" 20.00 10 t, . c --- The oostj to ua of lb# pi wit wU";, therefore, siat iu :de vicinity of <.1100.00. nil of lixiu cost 7i>p?eente ssateri&i vhiob sr aunt pureuo.9#; permipa 4o?`. rapraeentc crpetaditurs Tor l\bor o* our own proaeat waploysss. * s Tbia Pilot* plant dauign wid out eotl&tte xzZbb cwwwat cf tit probable neoaacity X nautrailxsing aba moto acid lth Him to prevent trees poluticn. Tbo actual emu::: of cici put Is;bo tbs atresia by sur process will probably bo ssa&li ouau^b to cause na'<Uaw.i*e; but 9o feel tbnt It would bo beet to t**o waaW/e? stops, are open to 03 towards tiiolalainy the polutlen. Tills m.11 strengthen our position in tbs oven* of activity on tbo o&rt of the at ato at *ioae future nuts, . In order to daterslne wfcetivor tbo ratber slsaulo Pilot plant erpsaditure is Justified, it vn* fait deelrablo to atbsppv to calculate tbs possible eventual coat of v final full sonln plant, together eitb its operating coal. If such a plant o*n show a ra\*inably nls&bl* saving, bused or prevent :>r future oonsunsmon of asbectoe, then lb Pilot plant ssqpendituro is Jusstif labia. Tbs following calculations were, therefore, eatdo. Tbs cntlsmtsa plant oast is xooodidgly roxT&b and say oo 25> fries tha eventual figure The cateri&l nixi labor figures cere or.aod on tbs nua.il uoflie study given above *uro a~.se subject to considerable revision. . ?be coat of the eventual pi*ut lno^uxeo the ooi;t of the Pilot plan indiested ouove. . Coat Calculation iUV^* Valeria! 1 - digester . 1 - condenser 1 - vocxsm filter . 1 - raoelver. 1 - oixing tant 1 - atorcgo tan* 1 neutral Ha in? tank 1 - set ?tAYU pipe * valvoo 1 - KaY~'; eduotor (Keveg prjrto) 1 - Kavfc* obnoxious vnp. bond. 1 - iJAV'T) funs lioodn (abvet) 1,330.00 to^O.OQ' 7:x>.go $50.00 550.00 i,a';o.co lt(>*>0.00 2,051)0. 00 50.00 !Q0;;O boo.cn Minlds 'ttOTltvl . 3 VpV^O nlso 2ri.ee -r- 2.6 -- cut--^r--poets ak 5?,i2C 1 - ociuoior (ooauvto-Xcortlns"* parti 1 - o'ouojcioua vap.coiui. (. .K.pari) ** - tbeaters Il-'ariBtwi,' 1 - oet traps, valves, pipe ,, inutallation oast a - noao-uia ar\or X-O.TX) 200.;0 1,300.00 7^*^ lj'.OO.OO <..000.00 4,e^o.oo 4,e6c C 1 - Pilot plant ooEsplate ,c 1 000.00 ' ... Pl*nt Prottaotltritr **' ` Votol ----- $9,S40,G0 ; * on 1 10 hr. shift, 923 lb. pox day, 260 parting days - 240,000 lb. pox year Cn 2 - 10 hr. shifts - 40,C00 . * * P.eoont Oonguagtton During 1957 total aabOBtos used vs 105*391 lb* per year Curing firstvj aontha of 193* 2rat* - 9d11500 ib. per year . rropoeed plant would, therefore, take oar of 1937 rate of production with oas to puret leaving a whole oxtra shift for possible expane ion. Cent of Plrmt A. detailed osp&rately, roughly 39*340.00 - ' Tstiaated llfo of plant - 9 yenr. therefore, szaorklsatlon per year -- 1,9&S.C0 I'etloated maintenance per year 1200. CO ^lant charges per year - 32,l&d.OO which constitutes a fixed charge, to bo distributed over the production. 7t^od nar lh. of This will depend ontirmy on tho rat of production. nill ho jjlvsn three unys. ' (n) bared on present 1933 rate (li) Uaattd ou notual consumption during 1937 (0) poaaiblti eventual saxisjuai pl^nt capacity, *oridiS too ahiftM ?ixad ohcurgcH for decree 1st ion und oalntonaxioe at thi-as thr?re pro duction riitoa will hui (u) 32,lf>i5.00- 96.300.00 - ,*0.0219 joss lb. Co) 3,163.00 5-165,351-00 - U.Oil? 0 * 'o) 2,li'.G0^*.U0,cC0.tX) - O.C^s-5 per? lb. T>lr?ot r^viT-^g .. ;;o^Trr>.d;.j c.-snto - * nt^.ir . rhiiae nr?i b*ace;l on dully charge oS 1000 lb. rc.w anbooto.*, Pfcioh, at 92.3:> rago yield - 923 lb. per O.uy c.i *rr.ted nobentoa. " ?.ir^ot r nbor 1 nan - 10nr a. * 70^ 1- 3" 5-Oj; sioomalun - .1 7 - 00 - l-VJ - ** 3^ - 923 - `C.0130 per ;o. -7 I 1000 lb. rnw'uabestoa & "$.011# guri&tio acid, 787 lb. Q.?5 Llss, 252 lb. i> 0.4254 ntJtaa, 10,450 lb. (t 35* per 1000 *atar, 24,100 &a. 4*r . Air, 10,500 cu.ft. u 1*> * C 30-31 5.91 11 * 41.95-923 Total direct labor A Batorlol $0.0454 par l; 0.0534 pax 1* Total Op at of Vrortoot A Coarmrlonn with i'YBWrt *rloa tir present treated asbestos, Ibid dom at barshallton, baaed op figures furalsbad to cm by tfr. rdneiulr, but a&ju&ied lor tbs recant price increase la 50.(39969 par lb. This is not govorusd by quantity. uoed. :ur otm production costa v;iry vith mL:.siiy and srctuid bet !*r:eiuotion rate / y^rr rixed rhrr?tfa iifg. Ooat Tot*I ^oat Potential tfaving uwf'lb. iu tent1*1 having <?ar ?*r 93,300 lb. 105,2*51 * 460,003 * 83.0219 0.0117 0.0045 O.G5&4 0.0303 0.01$4 0.0534 0.0701 0.0296 0.0564 O.O&29 0.036a 1,916.00 5,500.00 17,690.00 figura ^ivmt of potential earing per yoar inclvsios overhead 1 tests not possible to evaluate* definitely with the lnoo^lete infernation cor available. Thoao lrulusle purer, light, beat, sp&so rental, taxes, ir.eur:uiop, wto. Ybcy do not include ualatonance, supervision or depreciation, as thoe bare been Included in tbe table above. *hils I cunust satire with exactitude what these figure* could b. It is y opinion that ti figure of 3100.00 per caontb could aaply cove? tbaa. ca ibis basis the actual savings psr year u;uld tat induction vm\? Potential yearly caring Estimated actual yearly saving S3,soo a>. isw,::5i * 486,000 2 0 1,916.00 5,5.00.00 17,690.00 :i 716.CO 4,300.00 16,490.00 Those figures indicate that the installation is justified even on tbs basis of present production uni would yield a substantial having at tbo production rate of 1937 or bettor. This takes no account, of sour so, of the greatly iaproved oert&ln of supply on our casia raw o*tar?.ai ^*bicb our own plant ruuld give us  C ( and which pro &ably rould be t'orth, r/ityins sosutaisig extra for. uiir gonaral* oonalusioa, therefore, la that 'ths exponas of a 1*110* plant x* nail justified by the eventual possibilities, cad o recusal . that an u^rapriatlou bo s*uto In the aua of till00.00 for this project. 3hen the General Thaaiaal Cotapany'n representative* talked with us aoa* cacmths ugu about the psr>!x>ud urloa increase, It vaa stated that tfcoy were faced vim an expenditure of ido,000.CO to $50,000.00 for e^uipnsmt to carry ou thie work. *! took exception to this figure. LateT on cone of their ariglneern visited our of floe and the vrlto: doscribed to Shea In full detail uur proposed process for treating as* ben toe. * told the* that an expenditure of perhaps (17,000.00 to 515,000. (30 ah mid cover the CMUipaent. It v&s also explained that a ?ilot plant would bs nooenuhry before the process oould bo installed erd we offered to. glvo thoa tho i'llot plant ccuxpaent at part prion. fkujavh&t latur a latter *%e ?t.*owtvcd with a revised astluu.to of. their expenditure cut dovn to *10,000.00 to 212,000.00; but yo-afftra* in^ msir increased truo tat ion. `k>tnlng was said than or since about wnether they wived w> uu our pruose. '* believe, hoover, that oil the evidnneif indicates that they 'dill either not ue -.-ur jTrt>eontt,or if they do use it, onar.^o ua the 333a price previously contouplatod. *-o boiii*vn '* I'ho.iia continue to purciwi** partial ro^uiraoente through theca for pvobtoly eoa?: tlaso to boats, and in the awantisw, develop ouroelves us a aeond jxmrce of vupply as rapidly an prac ticable. Thie belief in stronxjthenod by tha i'aot that tentative overtures on the i?f our lurchaelx:^ Cepuxtuent to other ouenioal cosponios ha not syst with any cordial response. The oheaical -box's on which thin report is based was parforeed largely by I'x. 'C. i*. linage and the i'ilbt plant designs wars exude by hr. 0. .i. Ohano, ^ '-ho writer a-. 3lii to nosnawleiG* with thanks ths edvlc* ni:d nar.iotiun;-* a 'if. li. - . ninelalr In preparing the coat estimates a.ii in studying the prucabie eventual junti-floatiou of the procesn. : uepeoifully eubaitted. June 50, k STATE OF DELAWARE SS NEW CASTLE COUNTY Z AFFIDAVIT APPEARED BEFORE ME, a Notary Public for the state and county aforesaid, Edwin Paul Mampe, who being duly sworn on the 28th day of March, 1994, did depose and, based on his personal knowledge, state as follows: 1. He is a resident of the State of Delaware. 2. He was employed at the Haveg plant in Marshallton, DE in various positions from 1937 to 1977. During the years 1937 to 1941 he was employed as a draftsman, a pilot plant operator, and then was in charge of the order department. He has attached pages 5 and 6 from his deposition of July 5, 1985 to reflect this. 3. He recalls that Haveg was supplied with treated asbestos by General Chemical from the time he started at Haveg in 1937 until approximately 1941 when Haveg began to receive untreated asbestos from other sources. The treated asbestos received from General Chemical was used in the manufacture of Haveg material. The Haveg material was sanded and manipulated in various ways which created large amounts of visible dust throughout the plant. 4., He has reviewed a copy of a document entitled, "Preliminary Report Treatment Of Asbestos For Use In Haveg Mfg." He has attached a copy of this document. He believes it was written by William H. Adams, Jr., Technical Director at Haveg. This document accurately represents the supply of treated asbestos to Haveg by General Chemical and the plan for Haveg's own treatment of raw asbestos. 5. The manufacture of Haveg material at the Marshallton plant began in approximately 1932. r. . . /* r5-. He is competent to testify about the facts set forth m v this affidavit. SWORN TO AND SUBSCRIBED before me, a Notary Public, on ths date and year aforesaid.