Document baGMgo48kBMO5j6BYmY5M1d13

St. TouJ - Qmj*t1 Cffleas taptsnbsr 3, 1965 Naok Hiohols - Cltrtii^ MOCK* 12*2 -- tmllmacm gIwstrls ^ cnpsry- ______1||n1 Richard Davis RDAVT As X told you aa ths tslspfaons Nr. Harsdo* called mm sarlisr this wask quits disturbs* as a rssult of ay lsttsr of August 27. This lsttsr sppsrsntly alsrtsd hi* seasides to ths potsntial taxis hesard* of ths uas of Aroalar 1242 at slsvatsd tanpsratursa. Bs told as that ths Monsanto utsraturs furnish** his had bssn mmt* rssasurlag ia tnu of vfast problsaa might arias la thsir application. X cusss shat rsally shook hla was wfsn I asnclons* that with tsapsraturss grsatsr ths* 150 asehanleal axhaust vsntilatien should bs provids* to r--ors vapors. Par ths rsoord Nr. Bar-ados' application involYsa ths uas of Aroelor 1242 aa a coolant la slsetrls actors. Two aotors ars aounts* cb *"** squipnsnt uasd at ths faes of a drift. Total volua* of Aroelor for ths two aotors is approsiaatsiy cwm. gallons. Harsdo* sstisatss that four quarts psr day of this quantity would bs loot la ths alas -- prssunably all of it by volatilisation. X told hla X dsubtod that ths vsntllation provided ia aiasa would bo suffloisat to kasp this aaouct of Aroolor at tha thrwabsld liait valuw of 1.0 ag/u. sstsr of air. Ho told as thsrs had ban mm o rap Tints ia aiass n*r# ths aotors wsrs bslag uasd. Hs wasn't apselflo but X undarstood that ths eoaplaiats wsrs of odor sad irritation, festhsr or not ths lsvsls ars actually irritating X don't know, it oay bs that ths aiasrw havs Just rweognlxsd that thsrs is sonsthiaa in ths air now that wasn't thsrs bsfors. Mr. Rarsdos want on to say that ia his own plant hot Aroelor spills on tbs floor wars ssassn sad that hla own snploysss had eonplaiasd of dlascafart. X was brutally frank and told hist that this had ta stop bsfors bo klllsd sows body with Uvsr or kidney ---f- -- not bsssiias of a single saposurw asesssarily toit only ts --pfiailtt that 8-hour daily sapoaurw* of this typo would bs sonplstsly unaafo. Karwdon oallsd a sssond tins to inquire about ths dacanpoaition products with spseifls rsfsraoew to dssoaposltien products rssultinc frca slsstrie are lag. X told hla that wt had Underwriters' I ihnrateriss reports on hast trmnsfsr fluids shieh wsrs psrtlasnt. Hs rsoogaiss* that ths ehisf decomposition KQNS 097873 I T T.... . T Richard fimvla ? 2 4 9/3/55 produet would likely be SCI. 1 emphasised that this la itself 1s food "wain* agent* shlsh serves to liadt voluntary exposure to high concentrations or lacompusitlon notorial*. 1 told Mr. Haredcft further that the Medical Department was skeptical about the use of Aroeler* la mining operations because we had not seen data to show absence of toals levels. I emphasised end re-emphasised that tha iroelcr* are excellent produets but must be used la closed systems if they ere to be heated. M iaplled in hia second conversation that hia engineering grout was looking at redesl^s jo provide a "sealed* system. . ZPVtaJb Elmar P. tfeeeler P.3. Mr. Harodoa pointed out that in his application tha Aroelor could be heated up to nearer 400p than the 150F figure which Z had mentioned. zrn HONS 09787%