Document reVoDRMYqVMJo62ky4b7jv7Zq

Heekin Can Company, park and Forest Ave*, horwoc , Ohio. Mr . S . H . Champlin, The Heekin Can Company, Park, Forest and Pennsylvania 1?. B , Norwood, Ohio . . Dear M r . Champlin : I am sending you herewith two copies of Mr. Cholak's report of his findings on the samples which you provided m e , in accordance with your letter of September '22* I am sending these results without comment, partly because I am to be away for a number of days, and there is not time to give the matter any further thought, but mainly because all of the information that you are likely to require has been given by Mr. Cholak. If there are any questions in your mind concerning the results, I suggest that you get in touch with him by telephone. -. Very truly yours, FAK ef Enc. Fobert A. -kehoe, M. D. KS 00-1 3664 ampio A Total air sample 376 litera ut SlaY, -Irsi 'absorber or impingar {^0 ml. 5* ui05 ) BO ounc 0.2k raw; amnio 55 conti a ;sorter or Impiagar (230 tal 3 2 50.) ?b found Q2> mg. ampio C m u .................. i ilii onfcrol on reagents (2$G ml. %i- hhO.) Pb 'Pound 0*p mg* otal lead found (corrected for reagents) * 0.3 rog* corresponding to il.il -Ag. Pb por 10 0 air. ote: from the results obtained for i and B, it is doubtful whether all of the leaf! was removed by tho sampling train at tit sampling rats employed* This rat ia much too low for the removal of "vapora dr very fine particulate matter by impingement. Increased efficiency of removal is obtained by employing high rates of air flow -- at least 1 cfnu (approximately JO liters per minuto) o effectIvones a of removal deportas on the chango in tho kino tic energies of tho particles vrhen they strike th e plate?. Jais change HE 0013865 HE 0013866 ieporteds . * ' n f c ^65-te^i- r lspir.:;*? so - u * ?'&>:%) . P o\m &*2l. m k & M ' ** or m p * z & v Ilf ts&* F3 TWWsgl ** **i f,. ptv) Ofttfftl rii* 5> PK%) Pb ?`s*m C*>5 ;g* Total 1<S f m %tsrT&u>& r w r***?>*.* ) ?>*.3 * o # &po-nSi&& i m pp pr 10 ^ Sr S si& s " ?rsm th fet^5?it6 f o r & -"- U, I t I b o n t i v i <#&*t*j* mlX #f i& le& p m m v by ib m m p lln ; trata ai th* im p lin g , rafe* w gpl ym * fM rat is m^&h io& low for fcha r***v*l f poti m* w r f fia# par tt",lat* r:ail*r fey ''rsar#& of i' l *# ^feslns! by ?>lyt& bS\h rat-*5 f air fio# * fat lensafe 1 o.f?s# (*$$0x1* *A$ y o Il tar* ** minut) . T affiati vaaa- rv,*i a the ebftflge io feba Scisatte e s w g i ff th |M*ilaXs r,?,.*;; strili Us plat#* fh-l ^en$* H 0013567 1 K 0013668 fy k'tQ l