The pump | had, hjowever, previously been used to pump tetraethyl lead, the pumping hav ing been done by hand.

TETRAETHYL LEAD (TEL) . 0.075 mg/ m^(as lead ) - S k in Fxten sive and ca r e fu lly co n t r o lle d m an ufactur in g exp er ien ce has in d ica t e d t h a t a ' le v e l o f 0.075 mg-per cu b ic meter o f a ir (measured as lead ) is a good gu id e lin e fo r an allow ab le a ir con cen tr a tion o f TEL.

Kehoe, we conclude that tetram ethyl lead and tetraethyl lead (T E L ) a re no different fro m the standpoint of th e ir possib le effects on the' public health.

Our tetraethyl lead earnings are on target as our marketing agreements maximize earnings and cash flow in this declining market.

Including lead.

Williams, and am glad to know that you found no evidence of lead poisoning.

TEST PROGRAM TO OBTAIN DATA FOR SURGEON GENERAL Purpose: To evaluate the increased hazard, if any, to petroleum workers engaged in blending and handling of gasolines containing TML compared to that of gasolines containing tetraethyl lead (TEL).

EDB and EDC function as lead scavenging agents in leaded gasoline by reacting with lead compounds to form lead bromide and lead chloride.

TEST PROGRAM TO OBTAIN DATA FOR SURGEON GENERAL Purpose: To evaluate the increased hazard, if any, to petroleum workers engaged in blending and handling of gasolines containing TML compared to that of gasolines containing tetraethyl lead (TEL).

Summary Summary of Study Results The, objective of this study was to determine the effects of expo sure to organic ^ (me inly tetraethyl lead) and inorganic lead on the csr.trsi ar.d peripheral: nervous1" system in workers in the Antiknocks area of DuPcnu's Chambers Works plant.

~ / Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL - dacUioa* tad trad* OCTOBER, 19S9 <Vol. 23, No. 101 ' r ' INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE PITTSBURGH 13.

~ / Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL - dacUioa* tad trad* OCTOBER, 19S9 <Vol. 23, No. 101 ' t INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE PITTSBURGH 13.

~ / Industrial Hygiene Digest INDUSTRIAL HEALTH NEWS LITERATURE ABSTRACTS MEDICAL ENGINEERING CHEMICAL TOXICOLOGICAL LEGAL - dacUioa* tad trad* OCTOBER, 19S9 <Vol. 23, No. 101 ' t INDUSTRIAL HYGIENE FOUNDATION MELLON INSTITUTE 4400 FIFTH AVENUE PITTSBURGH 13.

Williams, and am glad to know that you found no evidence of lead poisoning.

The early experimental work In this laboratory indicated the character of the hazards of the mixing operations and of all other operations associated with the industry* It became apparent that the compound tetraethyl lead was an exceedingly treacherous lead compound and that It wohld be necessary to rigidly regulate the handling of the material* From time to time* therefore* we have issued instructions based on the continued observations of Industrial conditions* Tie have improved the equipment through the engineering facilities of the Corporation in such a way as tomake the industry safe.