This problem is not new or unique, but is one of many of the hazardous uses of lead compounds.

The cases in question originated in an experimental manufacturing plant for tetraethyl lead, in which a new process was being developed.

Occasionally orders for commercially pure TEL or dilute fluid in liter cans and invariably orders for special products such as tetramethyl lead or tetrapropyl lead are handled by the Detroit Laboratory.

A copy SSP and RCAP's extensive comments on the Lead Guidance is attached.

It may be of interest to you to have a partial summary of our work on lead, particularly perhaps, as it has concerned itself with specific problems of human health.

In accordance with your* request I am forwarding two copies of the report "Occupational Lead Exposure and Lead Poisoning.

-It wao'toimd.that the straight white lead paints failed in evetyeese..-.:...............

Moreover we have preserved the lead obtained from subjects employed In prolonged observations, in the fora of chromate, so that It can be seen, identified and weighed* We are thus under no Illusions as to whether or not we have isolated some other metal- The final determination may well be a matter of choice* Thus we do not trust the thiosulphate titration In deal ing with small amounts of lead, we prefer the S-diphenyl carhaalde colorimetric reaction to the sulphide or the Ivanov reaction* May I, without intending offence, make one further comment* This controversy was brought to light as early as 1921?

,,th lead.

LI A24661 LEAD INDUSTRIES ASSOCIATION, INC, 2t MADISON AVINUI NCW YORK 17, N.

He has had two cases in the last year that he has diag nosed as lead poisoning.

Ths eaount of lead In the extracta was determined by mesne of atomic absorption spectrometry.

Safety Engineer _ Dispersion Engineer Mass Senior Lead Technician Suspension Lead Technician (12X8 shift) Latex Lead Technician (12X8 shift) Mass Lead Technician (12X8 shift) Tank Farm Technician (12X8 shift) NARRATIVE Late on the 1600 to 2400 shift on 2/1/84 the tank farm leak detection system indi cated a significant fugitive vinvl chloride leak.

Lab Lead Techs 3.

Seller agree* to convert the pig lend supplied by Buyer Lnto beslc lead carbonate by the Cutch and the Carter processes of corrosion, furnishing 110 pounds of lead carbonate for each IDO pounds of pig lead So supplied.