Putting all of this information together leads to a conservative TLV for Aroclor 1268 of 0.5 mg/kg.

The work leading to the formulation of the BOHS Standard referred to above related to conditions in the textile industry and not enough informa tion is yet available on the relationship between mass of asbestos and fibre counts in other industries.

Removal of these natural, protective barriers can lead to drying and chapping such as occurs with exposures to paint thlnnere.

The oral LP50 was calculated as 11.9 gAg with Units of 10.47 to 13.45 gAg* In the oaae of Aroolor 1260. a 50)1 solution in com oil developed data leading to a calculated LD50 of 10.0 gAg with lower and upper Halts of 8.6 and 11.6 gAg.

In the case of Aroclor 1260, a 50^ solution in corn oil developed data leading to a calculated LD50 of 10.0 g/kg with lower and upper limits of 8.6 and 11.6 g/kg. 1 have enclosed summaries of recent data we have received from Industrial Eio-Test Laboratories in Chicago.

Dec, Total Dermatitis Fumes (unidentified) Hepatitis (infectious) Insecticide (unknown) Lead poisoning Paint poisoning Perchloroethylene Plastic chemicals Pneumoconiosis Pneumoconiosis (suspected) Respiratory Infection Silicosis Silicosis (suspected) Trichloroethylene Tuberculosis Undulant fever (Brucellosis) Miscellaneous Total 28 2 2 1 2 35 21 * 1 l 1 24 5* 1 1 1 l 9 12 11 77 33 13 2 12 l l 1 66 66 10 10 1t 46 1l 1 22 1 2 100 12 180 * Causes are listed as follows: Connecticut: Occupational dermatitis due to oils and greases, 4( occupational der matitis due to'solvents, 4; occupational dermatitis due to other chemicals: glues 1, multichemicals 3, paint 1, synthetic resins or resin compounds 2; occupational dermatitis--other: infection 3, soaps or detergents 1, miscellaneous 2.

Completion of low lead reformulation (RL-1850-C).

Richard - WR1CH Appreciate your digging deeper at ICAR (Italy) leading to confirming our disbelief that the power factor of Bayer's Clophea A-30 (Aroclor 1^4c) is better at elevated than lower temperatures.

We draw your attention to point 3 under "Results" in which we have deleted actual mention of the chemical element lead which you monitored in your study.

The lethal doat obtalnad In skin penetration atudlee la aueh, however, that prolonged and repeated akin contact should be avoided beoauae of possible systemic effects, in addition, prolonged and repeated akin contact may lead to akin irritation.

Enclosed is a copy of a news article that appeared in New Brunswick1* leading newspaper and which I thought you might want to add to the file.

Joseph Lead Company American Insurance Association 11:00 a.m.

Sales expenses, outside warehousing and all distribution cost are for our account. ........ .continued Nt 000041771 Carter White Lead Company Liaifced Itovetaber 14, 1961.

LIA16582 > i iiiiibi 11 htftiii iiiMirtafcMliwMfitirtiiiiHi'iii i \im `rw rTi'MnT i f ^mm u tmAi Lead Industries Association, Inc.

PLAINTIFF'S EXHIBIT MON-58 Canister and Bottled Air Type Gas Masks These masks are thoroughly inspected semiannually and maintained in all units of the plant in cases sealed with lead wire seals.