Health Hazards We pointed out that we had recently installed dust collecting equipment on all of the leaded zinc oxide packers and that this equipment should greatly reduce the hazard of lead absorption in this department* They felt that zinc oxide dust was dangerous to health even though it was lead-free* One of the arguments used was that the zinc oxide dust created constipation.

We have recently had several questions and claims regarding th toxicity of lead frit (lead monosilicate).

Health Hazards We pointed out that we had recently installed dust collecting equipment on all of the leaded zinc oxide packers and that this equipment should greatly reduce the hazard of lead absorption in this department* They felt that zinc oxide dust was dangerous to health even though it was lead-free* One of the arguments used was that the zinc oxide dust created constipation.

However, the recent blood lead levels are above the normal limits.

Are th-re any practical physical or cnesical methods of converting organic lead to inorganic lead in an.empty storage tank prior to cleaning ?

Rhoads we are writing to request from you a sample of tetraethyl lead of sufficient quantity for use in approximately one hundred (100) rabhits.

t> Ei NATIONAL LEAD COMPANY d/.f5S' 111 Broadway New York September 13, 1940 Mr.

January 8* 1943 --LEAD^iHsYmGIErNwE rATNDBS-A-F-E-T-Y To Members of the Lead Industries Association: Attached please find: 1.

LIA21548 LEAD INDUSTRIES ASSOCIATION >; 420 LXXINOTON AVENUC f NCW YORK 17.

'why is organic lead found in inverse proportion to inorganic ?

GENERAL TRADE SALES DEPARTMENT ,Dec. 1 1941 Bulletin No. 27 Subject: Discontinuing Sale of ODP WHITE LEAD AND ZILO The priority placed on pig lead sometime ago has made it impossible for us to obtain suf ficient lead carbonate to continue the manufacture of Zilo and ODP White Lead in Oil.

We are quite anxious to procure a sample of tetraethyl lead in order to test the antidotal value of BAL in the treatment of acute lead intoxication.

Ea of the Division of Safety and Hygiene do not feel that the small percentage of lead in the brass would ever be s factor in producing lead poisoning.

, Secretary Lead Industries Association 420 Lexington Avenue Lew York 17, 4. .

MO LEAD TTCKSTPAf.