Document 6R28onVmeLG1Mj2VM8ZqQryDR

/ C l a s s o f S e r v ic e j T h is ts a fast message unless its deferred char acter is indicated by th e proper sym bol. WESTERN UNION TELEGRAM W . P, M A R S H A L L . P r c s io e h t * SYM BO LS DL --Day Letter NL = N ight Letter LTt .In tern "L e tte r a tio n a l T e leg ram T h e filing tim e show n in th e date lin e o n dom estic telegram s is S T A N D A R D T IM E at p o in t o f o rigin. T im e o f receipt is S T A N D A R D T IM E a t p o in t o f d estin atio n _ CTA289 NSB154 . . . . . . . . . . ^ 8 ^ 1 41 ] l i S^BRA285f PD AR=WUX BATON ROUGE LA 18 12l 4PMCf ' `DR R A KEHOE ( CONFI DE NT I AL) KETTER I NG LABORATORI ES COLLEGE OF MEDI CI NE UNI VERSI TY OF CI NCI NNATI - .. - ' ' *'< '.* - . *-r EDEN AVE CI N= ;. SUBJECT-- DETERMI NATI ON OF J ETRAMEJ HYLLEAD I N AI R <3 Tj HAS- BEEN FOUND I N LABORATORY EXPERI MENTS . THAT 1 THE ETHYL FI ELD KI T METHOD FOR LEAD- I N~A1R GI VES` LOW i 1 RESULJS WHEN APPLI ED TO TEJRAMEJHY LLEAD USI NG THE FI ELD KI T I N . THE PRESCRI BED MANNER AJ THE RECOMMENDED SAMPLI NG RATES WOULD RESULT I N REP0R. TED VALUES WHI CH THE COMPANY WILL APPRECIATE SUGGESTIONS FROM ITS PATRONS CONCERNING ITS SERVICE 0020783 * N22016 C l ass o f Ser v ic e T h is is a fast message unless its deferred ch a r acter is ind icated by th e proper sym bol. WESTERN UNION TELEGRAM W . P. M A R S H A L L , p r e s id e n t SYM BO LS DL --Day Letter NL = N ight Letter LT= In te rn a tio n a l Letter Telegram T h e filing tim e sh o w n in th e d ate line o n dom estic telegram s s S T A N D A R D T IM E a t p o in t o f origin. T im e o f receipt is S T A N D A R D T IM E at p o in t o f d estin a tio n I .......... [ ARE LESS THAN 25 PERCENT OF THE JRUE VALUE ^ pm t 4 ' <3 THE REASON FOR JH. Ts DI SCREPANCY I S THE SLOW RATE OF REACTI ON OF TML WI TH TODl NE WHEN COMPARED TO JHE RAPI D RATE FOR TEL WI TH I ODI NE AS A RESULT JHE JML VAPORS ARE PULLED THROUGH JHE FI ELD KI T SCRUBBER BEFORE THEY CAN REACT COMPLETELY TO FORM SALTS WHI CH ARE RETAI NED I s | T POSSI BLE THAT THE LOWER REACTI VI TY OF JMl MAY RESULT I N LOWER. TOXI CI TY? 1 SI MI LAR LABORATORY J ESJ S MADE WI TH THE 24- ^HOUR COMPOSI TE TYPE OF SCRUBBER USED I N | HE PLANT SHOWED ! TH E COMPANY WILL APPRECIATE SUGGESTIONS FROM ITS PATRONS CONCERNING ITS SERVICE K B 0020784 C l a s s o f S e r v ic e T h is Is a fast message unless Us deferred ch a r acter is indicated by th e proper sym bol. WESTERN UNION TELEGRAM W . P. M A R S H A L L , Pr e s i d e n t * \S Y M B O L S DL = Day Letter N L =N ight Letter LT: .In te rn a tio n a l "Letter Telegram T h e filing tim e show n in th e d ate line o n dom estic telegram s is S T A N D A R D T IM E a t p o in t o f origin. T im e o f receipt Is S T A N D A R D T IM E a t p o in t o f d estin atio n =n *- 2 ? s y 3 - 44- LEAD RECOVERY EFFTCTENCI ES I N THE RANGE OF 90 PERCENT Wi . TH JML* JHE FACT . THAT JHESE SCRUBBERS ARE EFFICIENT .. I S APPARENTLY DUE JO THE MUCH SLOWER AI R FLOW RATES USED' I N THE 24- HOUR SAMPLI NG PROCEDURE# '<! JHE SLOWER RATE OF REACTI ON OF JML WI TH I OD I NE MAKES SEVERAL VARI ABLES J N JHE FJELD KI T CRI TI CAL FOR TML RECOVERY$ WHI CH WERE NOT CRI TI CAL FOR COMPLETE TEL. RECOVERY* AMONG J HESE ARE SAMPLI NG RATE, j ODI NE CONCENJ RAT I 0 N5 EFFI CI ENCY OF GLASS WOLL PACKI NG AND J EMPERAJ URE ? THE COMPANY W ILL APPRECIATE SUGGESTIONS FROM ITS PATRONS CONCERNING ITS SERVICE H E 0020785 * f C l a s s o f Se r v ic e T h is is a fast message WESTERN UNION SYMBOLS D L = Day Letter unless its deferred ch a r acter is indicated by th e proper symboL TELEGRAM W . P. M A R S H A L L . P u c s i o e n t ** NL = N ight Letter LT = International Letter Telegram T h e filing tim e sh o w n in th e d a te lin e o n d om estic telegram s is S T A N D A R D T IM E a t p o in t o f o rig in . T im e o f receip t ^ S T A N D A R D T I M E a t p< ' c ^*stm ation .... i ... ".. .... .. -.... .. -....... .. .. t::3 rgg i' s1 4 ` Z?) ' 4L >\ / c "'' . <3 WE ARE PRESENTLY SJ UDY I NG JHE CRI TI CAL VARI ABLES . I N AN EFFORT TO Fj ND CO. ND. Yj . TON S WHj 'CH WI LL ALLOW THE FI ELD KI T TO BE APPLI ED TO JML~I N~AI R MEASUREMENT WI TH A MI NI MUM OF MODI FI CATI ON j ^ OTHER POSSI BLE MEJHODS FOR MEASURI NG J ML~] N- AI R ARE ALSO BEI NG REVI EWED WE WI LL KEEP YOU . ' I NFORMED OF OUR PROGRESS R L HUDSON ETHYL CORPORATI ON = TH E COMPANY WILL APPRECIATE SUGGESTIONS FROM ITS PATRONS CONCERNING ITS SERVICE tfE 0020786