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H eekin Can Company, P ark and F o re s t A v e ., Norwood, O hio. K 001336:; rep tember 23, 19kk 19 Mr . S . II. Champlin, The Heekin Can Company, Park, Forest and Pennsylvania I?. B Norwood, Ohio. , Dear Mr. Champlin : I am sending you herewith two copies of Mr. Chol&k's report of his findings on the samples which you provided me, 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, IAK ef Enc. Bobert A. -i^ehoe, M D. HE" 0013664 J\KAD D;??KRTOm?ICH IB MU Sa ^PL.D BY FFPIFFFK AT BCFFI ;? C AB CCPPABY. FOFFOOh, w '10 F-avplors submitted 9/22/kl;. by F* A'* Oiuimplln ato 4*7 liters per minute for 00 minutes at Ci2F. Total air sample yjb liters at 82V, -.ample A -irst absorber or impinger {<$0 ml* %' H?i0o) Fh Found 0*21^. rag, A amnio B Feccncl a; sorter or impinge r (230 nl. 3 'F;o~) Pb found 0,23 mB : ample C ^m -nii-n i nai i ,Mp onfcrol on reagents (2*>0 ml, 3- iv:Oa.) Pb Pound 0Qp mg* Total lead found (oorrocfcod for reagents) = Q.Lj, rsg. oorrosponding to 11*1', mg. Pb per 10 air* IJote* From the results obtained for A and B, it is doubtful whether all of the lead was removed by the sampling train at the sampling rate employed. This rat ia much too low for the removal of vapors or very fine particulate matter by ir.pingement, increased officienoy of removal is obtained by employing high rates of air flow --- at least 1 ofm*- (approximately JO liters per minute), T;o effectiveness of removal deponds on the change in tho kinetic energies of tho particles vrv..un they strike the plate?, this change K 0013365 N16550.01 -- :> is bo low at the rate cf flow ojaployed I'Out a low ofriaienoy can be expected which would bo in line with fcba resuite obtained. The blank (control) appears to C oo;aothat hlnh, and undcubtouly le duo to ooutaninabion In the laboratory. Tf load-l'roe uiatilled water is used, IQ-lp ''!* o reagent nitric acid ckouicl contain no mora tt an 0.OCX-0,002 cvi, load. KE 0013566 ieportods y-el^hk- ip A / nst S& Mmt mmc^mkj.s,m:k-xi.. m *mfmm vi, <**J0 3j8pl4>tt artmitta-l %/2.2/kh by '* :" n^i^tiaa li&i k#7 lit*** f*&r wjsmt* for CSC BUrett# &t *;$*? fot&l air urn-pie * liters at 02*?. JMBllLA Pirti fttorfe** o-r .tepia.^r (.W j X* '& S'Cn^uf &.2I- 334. |agi%t#. c f!fO p3 TtuiiC * 0*22 %.* 5>- (font rot o a ?&&Titi (55^ -^l* $3 n.t%) Ft mm*3 - c.05 s;g. Tsst^l X<is#- fa or? eel**2 r^r rn* 0, 3 GOPTm&po-ntiinz to il.i f: :i * fo par 10 ^ air. Sai&t Pross i&e roat&Xt* ortfilAte; for 4 srwj **, it la 4ir4>fefl mlX tb# lm& **&# bj fch* <MMg>3ii tmXn *fc tim mimpliti r*H fM t is woi* tm low for tho of v&por* or ws*f 'ft.no w*ttor fey ``o 1 v^-#?ss. ?:ar#feaod tfflsfcftnty of rmotvikl *3 $M1-r s s <2 f.;; Ji?s 't.yh of iitr flow $& !***& i. cfs f ti;!tprcrxi^'? al;? $0- 1* t?r $>* mfftmti*#& f *#>v.A <$*$$00* <m iho ohartge to? tbo fticetl? OS#lPgi of th p$rtitles ?y*n :?tH.Sf tiro plat* :'`M.* eva^ij k^: 0013367 ...... ' ,(.! .1 ;ft *0"`i&jr *t $t rsst' of CUm fesplo/ft-d *w*t lo* tfSci#fcy 1m* *#*& tofcteh *!<$ %# la Xis# tii tSs# remits the %&*?& {oontawl) 49;e*?* t& fso a&it&v'rmt Mgh, *tnl eaOacftMS# i# &m W ^pntmslUu.t*m 2**. t&* If Xeefirfs*** &fe%l&l& *4fe*r 1* $##&* *&* & wk&xx nittfia mM 4Mt*ta :m mm tkm <MXft>CC(G& # Xsa# K 0013668 *;;;; t4U