Document VjpkL5pVnYnZyeGKknM5oXK68

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 Chemical OwBpany, ilarous Kook, i>a. The material purified by then has been saVlofactory 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 two 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 asbestos ourselves. Tory little progress wua cud* at that tine beomiae of the sore pressing Importance of other problems. Sarl7 in the spring of 1937* hovever, our HAVH> production in creased to the point where General Cho&ical was unable to meet our desands for ashes to a for several weak*., While the production rate tree later stepped t$>, and has einso permitted the accumulation of a satisfactory reserve, vo vere at on* tine actually within 100 lb. of h&vlag no aabertoe at all. This condition, cm our basic rev material, va of oourse danger ous in the ox&xae, and vo again started our own study of asbestos tree* cent, an intensively ae conditions peraitted. this year a1 further oodplloation has arisen. The General Oheoick CoBpasy has found it necessary to increase our treatment Oort to 6-l/t\ a pound, which brings our nst cost, including rav asbestos and losses, y. to alsoet 104. This increase woe caused by the need for expensive new : :.eouiposmt, 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 ehoulrt ve wish to treat our.. own asbestos. It van obvious frost the discussions that they would eel< cone the opportunity to give up the operation completely. * Cur ctrn asbestos study has, therefore; been intensified. A pro-- oeae has been worked out on a small scale vnloh appears to offer proalFurther study on n Irjrgar ooale will be required, hovsver, before the possibilities of the process on production can be evaluated. fiamen ***CH}m*v) i The aabastoe treatoant in Germany, thick the writer lnopcoted, 0 elated of the following step*} a - asoastoa digested <?4 hours with HC1 in open tank, heated by bloving in ateaa PLAINTIFF'S EXHIBIT HAV-33 tabbies* cc # t> - acid vaehsd out partly fey deacmt&tlon snA partly on * iP^vity filter tcri>*n o - vat *bevoa reasved by iitnd to a csnirifu^e where croh al' who valor was rceovod d - asoeotoe dnoft on t*aa traya In a long clrynouae at a ooaerate tonsnrrsturo oaly. Turned aver frequently by ixavX. General Htvynia&l l*?ocosa At :<itrou9 Kook tbt prooesc la baelcnlly tha sum a* too tteraan oue with alnor variations. After the nigtreilon, tha efineatb* la oaahoel by gravity on & lor^a hallow aoreen coaa 20 ft. eqtairo. This la a very alow proooaa. Thon the aaboatoo ia dr}<ul on a hut plate of about the *ju* size. - Connideratlona on which our nrcooeii la bneed In ajnaidering a duration orooeer* for our t>vn use, we rajootod the above After very brief consideration, Uecr.tuo in our opinion, it ha# very carious defect*. 1 - expensive nei fuae* frua open dilution tfcnk .would oe out of the 'tuustioxt in-a *azzlt*a oacridity iiie tturahalltun ~ 2 - Vr.c *otd la oontinuaily diluted fc7 the direot addi tion of atom. Vhl results in lumj dilation tine diia sub*!! ncid recovery lepoeulbla. ooovs oi`8 hi^u. kLsq, sorioua problem of river pointion; sany pouiido por day of pent acid snot be disposed of 3 - 'drtnrity filtration low temperature drying both xoaa very slow. Any prooeac, to ho practical cuui acoaoaical for our u#t, ossat avoid a aarloue fuse nulaono And a aeriouo river oontaaitiatica fcsaard. It saiat recover r ixr&e port of the hydroohlorio acid ojsd it asuat bo capable of reasonably rapid ajopIpulation. a few atteaotw sera iSd to di^eot Jhe auvtoe with HC1 in & WAV;;3 Vd83l, by bloving in iictoui c.;vO ^cco&nlaally. This pn>ce# wa- not .misublo, firft ohc-vu*** tne *pid oould ivot to recover- - ed in sufficient .unniity '*ji ya-nsa. bocauaa t:ie fibres wero uadly broker* up w>* *in? stirrer. ''eat, wo *et up two liter flasks and i/c.llftd under rrtflux In She laboratory. ?>.s fiashn c*jry.id eita .asbs^ioi uvi I'iydrooiuur 10 acid of 134 coit;antr>;ti.>n. 'hero *-.n 'imitation unceo'c thtt pro- video oy tea lt:oIf. -.* oonoetstrationo ;ror<? utwd; tna ir>- _ vc?lv<5d 13 t.TJ Of i.UA 13r.rr jiCi pKT .l&OliS^ea, t^ -tijor UtAQ C.*). Tho produot# aa outallied -rur* wp.ahecl 01 ar.^iyiad. . tj,en `islea Aiid XX j, suaswury i the recults follows! PUtl *. D 1ii*-gV-eJ stion Acid AobostiOK *'ntio -TieW A/u*i_veoe -- 9 47 11 1/2 1 -. ... 3 fl 13-1 13-1 13-1 13-1 97.5S 95.1 9b.9 97.1 1.5^ ) l.*5 o0..S609 )> ^osMstle sebart (."owuetan ICUa) ) 20 A 1/2 1 152 a3 655--1I 65.1 65--1 99S6..92 99&5..09 i.w ) 1.27 0.05 >5 IVsaoetlo AibCPtO* 0.99 ) 11?4 1/2 1 *156 3 7 &*-l 55-1 65-1 69-I 93.2 91.7 93-2 91-7 12*.4755 11..2014 ) ) > Issparted Asbestos ) Tbsse axpoYlJwmla penaltted the following conclusions! Slsplo boiling tad or reflux with l*r> hydrochloric eold will resov the soluble Batter fro either ksaM*ic or foreijpi csbaatoB without O-oplicatlons. About three b.mra dilation la required to reduce isolubl* alitor our specification of l.JOjv or lose. The rcTt* coiaentratad slurry os 6.5 to 1 la capnnle c* entirely satlcfsov;ry reeulta. Sicac the JvCl oocoeatratl^n la not isreatiy changed 1m this proves recovery by filtration wcocoas a possibility. rroa these axpari*?ab we felt that if a coaaareiaJL aenne could b scoured of boiling the r*000sto a *alurry under roflu*, the beats of a praotical process would be secured. Thera worn two difficulties in this. The first w= to find a iratlnruotoxy arterial to uso in heaW ing ooilj for }X1 iid the seccusd wua to obtain ft antlo/ectory laeane cf agitation vhion would not break up the fibres. a A snail dl^oater, fl* diaastax x dabp, vith ;t tight cover. *se* constrootod, uolng 5ix'/:*0. In the top of tain digojitor, oxter/ding through it into ine liouid, w. snuntiod a Tonialua irsndic Poufcor, loaned to ua by "ho rnneteel itbtftl. ur^ioAl Corporation. J*`or fcfilta* loo ms blow SiA2.ll i,u;iniitloa of oos;.>TSftNi eir in at the bo & ten. In order to prevent loss of iiCl vaj>or ** added a asuil wator-cooled condenser, o^notruotod of K.aY~G with i*yrox fills* tui>es. SsnrcrnJL runs were aids uairtj; the elites tax* described above, treat ing isported jtsoostoa. Ail runa were aaue vith a onargo ox 3 ib. raw fcSDSBtoo oral Z1 2b. of lffr hydr:cniorio rjo\d, whluh ificoacparKblft to the 0.5--I 'inid ratio used in the laboratory. After the *31 section the char&'e tss dinrped into h cent 12 HAVro filter and auction was applied. The filtered ooici vaa aavt*u and iirfsd in "he next catoh. Then the -3- '~r- *- - VV fcic'uoetoa <n;a washed cavern! titae.-v until olenn, cn: finally -dried -icd. &n*.i'/zod. * Throe typical new resulted AO fallows* PurletlO S I -M ro'd.per Air rate Fun rigeeiion recov pound cu.ft. Asbestos r.'O . 7lae !!.C. ery car ain. Ticld AShoeto: analval; 17 1 id 2 19 2 l.orh l.G&A 1.093 *7-5 64.5 61.2 i.odo 1.301 1-325 0.105 0.105 0.105 91.7 39.7 91.7 1.21* 1.43* 1.40* In general, tn* prooch*n proved wKilafaotery. Tfca VimtvJLua boater ?7keKl perfectly, wr*i tn air agitation mimi to kMP the oasa thorough ly worked up* There wee ns acriou* degradation of the fibre*. * were able to recover 61 to 6%- oi the hydrochloric acid for re-uso in the next batch, .*id the yield* averaged slightly setter than ':/X% of the raw csbestos. All of this lo:kod very premising. 7hero re-aHnod, however, tw or three points cm vaioh we were sot atisflod. ?irat, our cheater was equipped with & cfcxsp valve, wnich consistently plugged with asixiKtos fibre. The use of cuoh & valve on production w*a out of the question c:.d a' antinf*ptory rtuaping nmego- nent had to oo worteed out ou the whole proceed wee tuseieoa. '*eeotid, our dilations rer for c period too snort to yield rattaxial aoeting ocr apcaification. Third, e rooognired the certainty that &e the acid wilb used over again and eg&m, It would gradually increase in lepurliy until an cquiliferlua wee established. felt the need to run n swab larger nua:>t? of batches to find out whether the iapur* acid troUld affect the ivua.ity of the &*t>oetoa. The digester t*ao rebuilt, including a rubber-feafcotod plug valve In pl&oe of the jiw ssantloned aoov*. This operated entirely wlth-jut difficulty, and appear# to have solved the dumping prooiea, at least on this vawu.1 aiae equipment.- . Citn the rebuilt digester we ran 10 batches for various length** of tine, saving the recovered sold fr-:ua batch to batch. In this eerie re improved the recovery of acid ^rehtly by recovering, not only the first filtrate, but alco the first wash water. *th iaported and doaestiu asbestos was treated and gave satisfactory results. -- After thee* 10 rune the ls^urity in the sold was at ill increasing slowly and vac aosxi* distance frua reaching cumin by lua. There wee, bovevnr, no progressiva oeorcase lu purity of the* asbestos. It w*a felt that the expense and tiiaa donwuseti In run.leg a lar nuefeer cf. further batches was not justified. *e feel that the jcaeiblllty of obtaining cure usboetoe with dirty ncid has been euoitantlally shown'i although not conclusively proven. Zn ar.y case, should it be necessary to discard the acid After 10-19 or 20 rune, the "amortisation* of that acid is so low as hardly to affect the rmrults. catch No. In detail, the n#uis* of this* ayloa or rui:a cro ft.a foilo~8i , , lb&. 5.0.of charge ^ VTO. anal. oiusrw rts. tiss 4 ilfll TCT>V . aurlatlo per lb. nnbosttoe * Air Yield r^to n ?Tn** 2% 1.C37 17.52 4 25 3 C.fi65 .092 93.9 0.74 25 1.C95 16.(41 4 80.3 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 0.6&9 .152 91.6 O.dlCisK'ort 2d 1.124 16.12 6 51.3 0.902 .152 93.7 0.7^ accost 29 1.134 16.50 3 81.3 0.370 .152 91.6 O.56 30 1.140 16.30 3 81.6 0.648 . .152 93.'*' 1.20 31 1.142 15.36 3 32.2 0.735 32 1.150 16..X) ? 32.5 0.018 33 1.151 ' 17.00 4 75.5- 1.0*9 >4 1.156 16.42 u \ .152 .152 .152 >t 55-9 95-9 55.9 t 0.3? 0.7fl(-*aric 0.87 C OC'O *1 Tkeea runs provo to our own antiufaotion too pvtoilocbllliy of the procatitf outlined aiui the nao.ll ao&Ie *:uip38nt developed to otrry it ->r:. To design fro a this inforaatinn a full penis pir.nt, Jsowt?, would c?u*a to be an esaeodlngiy rlidty proposition. The prose an msd the eculpaant are so entirely different frwa the previous cvytnod that _ur design if*fcreation Is very Halted. *e aali#ve, therefore, that nn intomadirta ulus plant ch uld be ouilt, of about ;$0 lb. daily oivpfeclty. Tina plant OJUld so operated on the basis of regular production, ciin clone tenhnioal control. It v%uid prove taore dofinitoly the correotner.a of our dsaifcn and oetbod, and would yield sere praoluo deuign ana cost data. Accordingly, we have drown up completely o. oo-oollou pilot plant for an estimated capacity of ?0 lb- por day. '-' have calculated tu oioroly as possible tbs sales pries and out-of-pocket ezpendlturos and proa^n* thca In tbs following table, (iwverai iieaa of thtuJpasnt oonaiat cS HA?EC tanks already built and the only coat on those lisas la a exall ua to adapt thee for tea purpose. Vhe actual l staredlate out-oi-poueot expenditure is practically r,peaking the oust to ua of the pilot plant: vent ;oaic%1 Actual or ^r'JLee ottV*cf- pxsceat Itog yeorSntlon ^>rawlrui supplier * IQ ^rtow "Tocigstt eroorunt: 1 Digester 2 7nn.beatar JWS335 JfAVEO :eN f:?>A.20 SI 04.64 104.64 ?-j?ov53 Vunsteel P PC3.C0 2ua.oo ?cs.co l % Condonoar 1^2931 Cootion filter J-536 Vaouua r00elver 1^2536 HAVEO puacp 48(4222) n.8. Id mew 323.50 171.55 170.15 22.68 188.70 61.00 7&.*'5 22.68 1$8.70 34.^0 76.35 22.be) I l<lziiU{ thrjj NcutraiH.;Ici{ V>2537 kay:ig Tank 5-1303-T. 9 10 Drl&r 3t traye iws.534 :Jip *>253-3 N m II Volvoa d-2538 13 Iron pipe & Install. Id .Joe m n i* 6b .55 34. CO 133.24 132.45 149.2b 107.80 140.00 73.30 59^9 62.65 59.^ 140.00 7.60 2.13 $9.49 2.65 59.^ 140.00 13 *ood structure 70.00 70.00 7o.co 14 ffatsT aster 20.CO 20.00 20.00 c i/UW j ( 5 TT8T729" 10 t, . c --- Tixo oostj to ua of it# pi wit wU";, therefore, siai iu the vicinity oi <.1100.00. !iot* ail of lixiu cost 7i>p?ente ssateri&i vhipb v aue* purcuJ.i; permipa 4o?`. represents crpej*diture Tor l\bor o* uur own proaeat employees. s ?Ma Pilot* plant design wici out catiejate xzZbb cwwwat cf tli probable neoeaalty X nautrailxsing tdxa moto acid with Him to prxiveat trees polu&icn. Tbo actual emu::: of scict put It;to the etrotia by our pxooeea sill probably bo ssa.ll uuau^b to aaue<* nadonaKs; but no feel that It would bo boot to t**o vehaW/e? stops, are open to txa towards eialalaing tti* poluticn. Tills ia.ll vtrougthen our positiaQ in tbs oven* of activity on tbo part oS the at ato at **oa future nuts. In order to datexslne wfcether the rather sioaulo Pilot plant *peadituro is Justified, it vn* fait deelra&lo to at'.e^pt to calculate tbs possible eventual coat of v final full savin plant, together etth its operating coal. 12 such a plant oan show a roASiiuUily nitsbis easing, based or prevent :>r future oonsuasmon of asbestos, then the Pilot plant expenditure is .Justifiable. The following calculations worn, therefore, tanda. the ewtljaitaa plant oont is axopodingly rov&b and say oa iiS> Xrsct tbs evaaiu&l figure The eateri&l and labor figures coro or.ued on tbs iats.ll coals study given above oiia *uro o~.o subject to considerable revision. . The coat of the vauxuai pinn* ino^uxao tbs ooi;t of the Pilot plan lEdlosied ooove. Coat Calculation iUV^* material 1 - dlgoater 1 - eono**er 1 - vacuus filter 1 - rsooivor. 1 - nixing tanb 1 - atorugo tan* 1 rteutxallicing t&n* 1 - set ?tAYU pipe * salvoo 1 - KAYTt; sduotor (Kaveg prjrto) 1 - Kaytci obnoxlaua vnp. bond. 1 _ iJAV'T) funs lioodn (abvet) Mtslde 'ttoTlnl 1,330.00 to^O.OQ' 7:x>.go $50.00 550.00 ,i,a';o.co lt(>*>0.00 2 000.00 50.00 !Q0;;O boo.cn 3 VpV^O ''nlea .^rico -r- 2.6 -- cut-^r--pocaak 5?,i2C 1 - ociuotor (coautn^-Kcsrtliiiii'a pnrO 1 - a'ouosioua vap.oona. (. .K.parlSi) ** - ttntaiua beHtera Onristtwi,' 1 - net trai)*, valves, pipe % inutallatlon oast a - noao-uia arxor X-O.TX) c(70. ;0 1,300.00 7^*^ 1,'vOO.QQ 1.000.00 4,e^o.oo 4,e6c c 1 - Pilot plant ooEsplate c 1,000.00 Pl*nt Prottaotltritr **' Votol ------ $<J,S*0,GQ ; on 1 - 10 hr. shift, 923 lb. pox day, 260 parting days - 240,000 lb. pox year Cn 2 - 10 hr. shifts - 40,C00 . * * ftcgcnt Ocnauagttdn During 1957 total aabOBtos used we 185&51 lb* per year Curing firstvj aontha of 193* mt# - 9d,lS00 lb. per year rropoeed plant would, therefore, take oar of 1937 rate of production with aoas to spare, leaving a whole oztra shift for possible expane ion. Cent of Plrmt A. detailed separately, Txiv&aly 1*9,640.00 T&tiaated llfo of plant - 9 yenr. therefore, ezaorklsatlon per year -- 1,9&S.C0 ..* I'etloated nalntenanoe per year - 1200. CO ^lant charge per year - 32,l&d.OO which constitutes a fixed charge, to bo distributed over the production. 7t^od i-\nt chny-sew nor *h. of f*md*jot This will depend ontiruiy on tho rate of production. '-.iSlI ho given three unys. (a> hated on present 1933 rate (li) Uaattd ou actual conaurotlcn during 1937 (0) poaaiblo eventual saxi.uuii plant capacity, torxing tco ahifte ?lxad ohargcH for decree let ion und oalniontuice at thi-ae throw pro duction ratea will hui (u) 32,165.00- 96.300.00 - ,`0.0219 j:cr lb. (o') 3,i6s.(v:>-5-iti*>,6rA.oo - 0.0117 0 (o) 2,li'2.CO^^UO,oCO.t.O - O.OOvp par lb. Plrqoi Charge .. llvr*iffrpttrrid Canto - * nt^.ir . rhiiae rn bace;l on dully charge of 1000 lb. rc.w anbeoto.*, Pfcioh, at 92.3:> avorago yield - 1?.$ lb. per O.uy c.t tressed nebentoa. ?.ir^ot r nbor 1 nan - 10 nr a. * 1- 3" 50j; supervision ~ .1 7 - 00 - 1-V-i - **3^ so - 92;-? - `C.0130 p^r ;o. -7 I 1000 lb. rnw'usbestoa & "$.011# suri&tio jvoia, 787 lb. Q.?5 ilss, 252 lb. i> 0.4254 ntJtaa, 10,450 lb. (t 35* per 1000 *atar, 24,100 &a. 6* . Air, 10,500 cu.fi. u 1*> * C 30-31 5.91 M11A 41.95-923 Total direct labor A batorlol $0.0454 par l; 0.0534 pax 1* Total Op at of Vr-.rtoot A Coarmrlonn tah i'YBWrt *rloa tir present treated asbestos, Ibid dom at barshallton, based op figures furnished to cm by tfr. ninelulr, but adjusted lor tbs recant pries increase la 50.09969 par lb. Tbis is not govorusd by quantity. uoed. :ur otm production costs v;iry eith mwu.tity and would bet !*r:eiuotion rate / T^.r 93,300 lb. 1&5.051 * 460,000 * rixod <Tbffgca 83.0219 0.0117 0.0045 iifsOp at 0.0584 0.0534 0.0564 Tof*I ^oafc Potential tfaving oef'lb. 0.0303 0.01$4 0.0701 0.0296 0.0&29 0.0368 lutential having vbt v**t 3,916.00 5,500.00 17,690.00 finjure ^ivmi 01* potential earing per yosr ineludos overhead 1 tests not possible to evaluate* definitely with the inoo^lste infernation cor available. Tboao lrulusle purer, light, beat, spaco rental, taxes, ir.eur:uiop, wto. Yhcy do not include ualatODanae, supervision or depreciation, as tboaa bare been Included in tbe table above. *hlle I cunuet satire with exactitude what these figures could b. It is y opinion that a figure of 3100.00 per ecntb could baply cove? tbaa. ca Ibis Ln.iia tbe actual tarings per year u;uld tat induction va? Potential yearly earring Estiasatod actual yearly saving 53,300 lb. isw,::5i * 486,000 2 6 1,916.00 5,5.00.00 17,690.00 S 716.CO 4,300.00 16,490.00 Tfcona figures indicate that the installation is justified even on tbs basis of present production uni would yield a substantial bavins at tbo production rate of 1937 <>r bettor. 7hiu takes no account, of course, of tbs greatly improved 0 ortain of supply on our oasio raw a*t anal ^*bicb our own pitint ruuld give us C( and which pro &ably rould be t'orth, r/nyins cosutaltvg extra for. LTjr general* oonalusioa, therefore, lo that 'Uvs exponas of a l*ilat pliuit xs nail justified by the eventual possibilities, cad o request . that an u^ropriatlou bo ssule In the suai of iillOO.OQ for this project. 3hen tbs General Thaaiaal Cotapany'n representatives talked with us 9oas Bntha ago about the pst>!x>e<ud urloa increase, It v&a stated that they were i'aoeu vita an capendlturs of $0,000.00 to $50,000.00 Sox e^uipnent to carry ou this trurh. *c took exception to this rigors. L&teT on acme of their sriglnseri* vi sited our offloe end the vrlto: described to SUoa In full detail uur proposed process for treating as* bentos. * told than that an expenditure oX perhaps (17,000.00 to vl5 '-'90.00 ah mid cover the cmiipaeiit. It was also explained that a ?ilot plant would be neoennary before the proosos oould bo Installed erd s offered to. glvo then the i'ilot plant ccuxpaoni at part prion. fkujavh&t latur a latter *%a ?t.*otYcd with a revised estlaats of. their expenditure cut down to *10,000.00 to 212,000.00; but re-oXl'tsw* in^ t.ieir increased quotation. `k>tnlng was said than or Piece aoaut wnethex' they w wived to uu our pruoosa. ** believe, hoover, thin oil the svidoncV Indicates that they will either not ue viir jTrt>eonu,o* 11' they do use it, ouar-so ua the 333a price ?rcv:ou3Ay omvtosplated. *-o boiii*vn '* I'ho.iia continue to pure Ivase partial roquireoente through thoea for probtoly eoia?: tlaso to pom, and in the awantiae, dovolop ouroelv&e ns a aeond jxmrce of supply as rapidly no prac ticable. This belief in atron.'a&hened by tha foot that tentative overtures on the i?f our lurchaslx:^ Cepuxtaonfc to other ouenioal ccspanioe ha* not wv with any cordial response. The oheaioal on which thin report Is based was parforeed largely by I'X. 'C. i*. iiaagie and the i*ilat plant designs v*ra ssnde by hr. 0. .i. OUano, Vho writer a\ shea ?.l-*> to aohnnvlsdgs with thaivhs ths <&dvlcs ni:d nar.iotaj>}<9 of 'it. li. - . "linolair In preparing the coat estimates a.ii in studying the prouabic eventual juntlfloatiou oX the procesn. oupeoifully eubaitted. Jun* 50, k STATE OF DELAWARE SS NEW CASTLE COUNTY AFFIDAVIT Z 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.