If workmen leave a tank for a period of time, such as overnight, gas tests should be made the next morning before they are per mitted to continue work Many companies use a written permit form when it is neces sary for men to enter vessels which have contained flammable liquids or to do "hot work" repairs in them Devices are available for testing for car bon monoxide, benzene, hydrogen sulfide, and tetraethyl lead hazards (This last in strument is available from the Ethyl Cor poration.)

Consequently, we will make every effort to have Vitol canned for sale in Columbus and we would like to have you or your staff inspect and approve the canning process to be used from the standpoint of exposure of canning plant personnel to the methanol and tetraethyl lead.

Sayers, working with tetraethyl lead in 'Sarying from 0.35 to 10.4 mg. per cubic meter of air, found that only * aipjetained and attributed this limited retention to the small particle gpWzSW/owji agtudies gave rather conclusive results, showing that the percentage ||sely proportional to the minute volume of air breathed and to the ^^jyhereas-it-is-directly-proportionahto-the-particulata size,, density uwm?

It has been a temptation, which has not even resisted by many persons, some of whom mould know better, to credit the toxic effects exerted by gasoline to its content of lead alkyls (1 a' tetraethyl, tetramethyl, etc.).

(iii) In the Schedule -Hazardous goods- under entry "Cotton (whether in fully pressed bales or otherwise)" Add "Ethyl Fluid (Solution of Lead Tetraethyl in Ethylene Dibromide)".

Tie realise fully that your rigid instructions regarding the careful handling of the concentrated tetraethyl lead are to be carried out to the letter, but in the preparation ox material for testing and in the actual testing operation our operator claims that he. cannot avoid inhaling to some degree the fumes from the fluid.

There have been several instances in which the masks have been used in a fairly high concentration Of tetraethyl lead vapors.

Naptholene Oil (mineral) .. g^Proproloctcne ppm* 25 100 0*02 10 Tantalum 1,1,1,2,-Tetrachloro- 2^,-difluoroethane 1,1 jJ-Tetrachkuo* I ,2-difluoroethane Tetraethyl lead--Skin Tin (inorganic compounds) .

The manufacture end wide spread use of such a substance as lead tetraethyl and tho preparation of extremely poisonous war gases are good illustrations of this.

The entire safety policy of the company is built upon meticulous car in the prevention of accidents that might result from exposure to tetraethyl lead or its decomposition products.

Kehoe in charge of our medical work for several years, and believe that he has had more practical exper-ience in reference tothe actual as well as possible hazards that may be associated with the handling of tetraethyl lead and Ethyl fluid than anybody else.

- REGARDING THREE DEATHS IN SA N ITY EIG H T WORKERS PROM TETRAETHYL BEAD } STANDARD O IL M W JERSEY PROPESSOR HENDERSON WIRES US SALE TO PU B LIC O P GASOLINE CONTAINING LEAD ROW REPORTED IN HEW JERSEY MARYLAND AND , S i f f i ^ f y i T i P .ST A T ES AND ELSEWHERE I T SHOULD BE STOPPED IMMEDIATELY AND P R O H IB IT E D U N T IL SUBJECT I S PULLY INVESTIGATED BY S C I E N i l P i c ^ S i R T 3 ' * OTHERWISE GREAT DANGER WIDESPREAD PO ISO N IN G AMONG MEN AT GASOLINE P IL L IN G STATIONS GARAGES R EPA IR SHOPS AND EVEN GENERAL PU B LIC PU B LIC HEALTH A UTHO RITIES EVERYWHERE SHOULD TAKE IMMEDIATE ACTION WE HAVE PROTESTED JER SEY HEALTH DEPARTMENT AND IN D U STR IA L COMMISSION DEMANDING IN V ESTIG A TIO N COPY 4JU "W jw s n W i a m m e xv p p & `s o ^ b im ioVarnwr^a 10^ <W no 10 bay Letter , NlsM Messaa* : . .

Other uses which have been described are in the refining of aluminum, the production of tetraethyl lead and the synthesis of primary alcohols.

The formula they approved is as follows: VITANE FROM ETHANOL 70.00$ by volume ethanol (73.5$ of a 95$ alcohol) 01..1050$$ methyl isobutyl ketone alpha terpineol 0.13$ sodium oleates & sulfonates) soluble oil 0.37$ kerosene ( inhibitor 28.4% water Plus 3.0 cc tetraethyl lead per gallon.

Consequently, we will make every effort to have Vitol canned for sale in Columbus and we would like to have you or your staff inspect and approve the canning process to be used from the standpoint of exposure of canning plant personnel to the methanol and tetraethyl lead.