Johns -Maxvxlle Corporation tnvTv-rvo cast rotrrrrra mia soar rota. *.n faptaabor 1, 1966 J.

27 June 1964 S.A.

216 MARGARET R.

Intra-Company Communication Ihy 22, 1961 Mr. 3* Vanasnt Safety Engineer Tpeilanti Plant Bt: Air-bome Particulate Matter - Solvent Vapor* - Mixing Hoorn tor the Heater Core Operation - Ipsilantl Plant The writer took eaaples of air-borne particulate setter and toluene solvent vapor at the above ad ring roan. the zaaults vena aa follows: location Sisal conveyer Clay hopper Calclw hopper Mix tank Air-borne Particulate Matter 8olvent Vest Besuits to MPPCT* $.$ 5.2 1.7 1.3 location Gunk cutoff Ejection end of extruder Results In Fftt-- 0-70 $32 MPPCF Million particles per cubic foot of air.

1 physical information about the product or anything Page 1146 I 2 else. 3 Q Mr.

1 strict precautions to prevent inhalation of fibers Page 2980 2 during grinding and beveling?

Page 3359 1 I, for example, read the New York Academy of 2 Science symposium on asbestos and disease shortly 3 after it came out in 1966. 4 But to review the older literature, I did 5 that after I had examined a patient who was a 6 plaintiff in an asbestos trial, and the attorney for 7 whom I did the exam asked me if I would also go back 8 and review the earlier literature and testify as to 9 the historic development of knowledge. 10 That was done in 1978, the first time. 11 Q And have you kept up to date on the 12 development of knowledge related to asbestos 13 diseases?

1 workers had shorter exposure, hadn't had sufficient Page 3392 2 accumulation of fibers to develop the disease. 3 What he found in his population was that 4. there was asbestosis,' there was lung cancer and there 5 was mesothelioma. 6 He pointed out that his work, and others 7 such as Fleischer and Drinker, had shown that the 8 average level of exposure of insulators was less than 9 five million particles per cubic foot. 10 Most of the data suggested it was around 1 11 to 2 million particles per cubic foot, but that 12 despite being exposed to this level, if you gave 13 enough years of exposure, disease occurred. 14 And, therefore, the five million particles 15 was clearly too high. 16 Q Doctor, this was published at the, I 17 believe, December 31, 1965, this report?

1 Fleischer-Drinker study was published and one year Page 2076 2 after the ACGIH talked about the TLVs -- are you 3 familiar with a document known as the Hemeon report?

>>\ DEPARTMENT OF HEALTH.

PLAINTIFFS ^EXHIBITff i 0-4%1 IN THE COURT OF COMMON PLEAS CUYAHOGA COUNTY, OHIO ANTHONY MARIO GRECO, et al. , : : Plaintiffs, CASE NOS. 323629-3236^ (HANNA, J.)

DUCT SYSTEMS COMMITTEE MEETING Atlanta,Ga.

NEG.

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c Asbestos Mining As^c^iON'^|^i|^ 5*0 g*and-alle est -- sunt l_/ % H u"tc 4, out ^ Tahpkoee J15-6731 November 16, 1964 fflr. m.'