A number of companies responded supplying data leading to 9 of 23 new additions that year Notice of Intent 1965 Stokinger wrote to the Manufacturing Chemists Association now Chemical Manufacturers Association Stokinger 1964 Corporate Influence on TLVs 533 This was particularly encouraging in view of the fact that the committee has never had a significant amount of voluntary contributions from indus- trial sources as long as I can recall 13 years despite annual exhortations welcoming such information By 1966 a committee of the Industrial Medical Association now American Occupational Medical Association expressed concern over the growing impact of the TLVs on industry At the same time it was acknowledged that industry had data on file and the means to develop more data that could contribute constructively to the establishment of realistic TLVs Golz et al 1966 Over the years Stokinger had had a number of meetings with industry groups at the Mellon Industrial Hygiene Foundation to discuss proposed changes in TLVs The TLV committee's 1968 Notice of Intent even invited industry data via the Industrial Hygiene Foundation Repository of Anonymous Occupational Health Data Committee 1968 However little if anything of value was ever obtained in this way Stokinger 1986-87 From the time the idea was first suggested the Industrial Medical Association had apprehensively observed that documents in a data repository might be subject to subpoena in damage suits Minutes 1967 In 1969 Stokinger described the lack of appropriate industrial hygiene data as the greatest problem facing the TLV Committee Describing the American chemical industry's contribution of data on new substances to the TLV committee'as pathetic Stokinger who was employed at the U.S.

Company is recommending a special type of standpipe, to be inserted in the drum, which will insure removing all of the Tetraethyl Lead Compound in the drum. - 'You state that they are recbmmgnding with the use of this special standpipe that the washing of the empty drum will not be required. .: -As you are aware we have always recommended that the empty drum indeed be washed with gasolene.

r -2 located, but there was considerable tetraethyl lead vapor in the air

He explained that, based on the information obtained to date, EPA believes that the major methyl chloride manufacture and use operations (particularly the production of silicones and tetraethyl lead) utilize relatively stringent controls.

In a few instances (DuPont with chloroaniline and tetraethyl lead), "protective clothing committees" within the plant have been set up to determine a fair and equitable method for clothing issuance.

Dear Doctor Smead* I hasten to reply to the last two paragraphs in your letter of October 20 - This Laboratory had its beginnings in the middle 1920*s, when I and my associates began, the investigation of the toxicity and hygienic potentialities of tetraethyl lead, with respect to the manufacture, distribution and use of this material and in the use of gasoline containing it, as a motor fuel.

We are planning experiments on the permeability of at least one brand of air-line hose to tetraethyl lead and iso-propyl ether.

Evans will undoubtedly claim, however, that he was exposed to tetraethyl lead within a period of two years prior to the commencement of the action and it may be that he will also claim that the later exposure was more harmful to him because of his previous exposure than it otherwise would have been.

The same holds true for the other xxo, and a brother to the two dead men of that name*"'Nevertheless, a dally vigil is kept in the four cases* Doctors have refused them discharges from hospitalisation* The disease against which the medical men guard is tetraethyl lead poi soning, product of an industrial and chemical age.

Dear Doctor Smeadi I hasten to reply to the last tvo paragraphs in your letter of October 20 - This Laboratory had its beginnings in the middle 1920*s, when X and my assocites began the investigation of the toxicity and hygienic potentialities of tetraethyl lead, vith respect to the manufacture, distribution and use of this material and in the use of gasoline containing it, as a motor fuel.

FORMALDEHYDE HYDROGEN SULFIDE VINYL CHLORIDE HYDROFLUORIC ACID DIMETHYLAMINE HYDROCYANIC ACID CHLOROMETHANE 1,1-DICHLOROETHYLENE CHLOROACETALDEHYDE ACRYLONITRILE TETRAETHYL LEAD CARBON DISULFIDE CARBON TETRACHLORIDE CHLOROFORM TOLUENE DIISOCYANATE BENZENE 1-CHL0R0-2,3-EPOXYPROPANE 1,2 DICHLOROETHANE FORMIC ACID ETHYL ACRYLATE ACETALDEHYDE PYRIDINE METHYLENE CHLORIDE 1,1,2-TRICHLORQETHANE ACETONITRILE TRICHLOROETHYLENE t-1,2-DICHL0R0ETHYLENE DIETHYL ETHER MALEIC ANHYDRIDE 1I,2,3-TETRACHL0R0ETHANE 1,1-DICHLOROETHANE BENZYL CHLORIDE TRICHLOROFLUOROMETHANE METHYL ALCOHOL TETRACHLOROETHYLENE METHYLETHYLKETONE ANILINE 1,1,1-TRICHLOROETHANE ACETONE 1,1,2~TRICHL0R0-1,2,2- TRIFLUOROETHANE 41. 42. 1^42. 44. 45. 46. ^46*. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62.

Oca z z z Z O z o t" (a) damage to the respiratory system, and also (b) systemic injury through the skin All sub stances should be investigated to leam whether this double hazard is involved Some common substances which are hazard ous through both the respiratory system and the skin are Aniline Carbon disulfide Cresol (cresylic acid) Dichloroethylene-1,1 Decalin (decahydronaphthalene) Diethylene oxide (dioxane-1,4) Diethylphthalate Dimethylaniline Dinitrobenzene Dinitrochlorobenzene Hydrogen cyanide (hydrocyanic acid) Iodoform Lead tetraethyl Mercury and its compounds Nicotine Nitrobenzene Nitroglycerine Organic phosphate insecticides Phenyl hydrazine Tetralin (tetrahydronaphthalene) See Chapter 43, "Table of Chemical Haz ards," for a full list Some workers consider respiratory equip ment a nuisance, not realizing that failure to wear it may endanger their lives Usually, the attitude of such men can be changed if someone m authority will clearly explain why the equipment is necessary, show the men how to fit it in position, and explain its opera tion If such educational efforts fail, the alternative is discipline, for the nsk of injury is senous Excellent health and thorough training m the operation and maintainence of equipment are essential for persons who are to use re spiratory protective devices Anyone m questionable physical condition should be prevented from entering environments pre senting respiratory hazards, and thus avoid having to wear any emergency breathing apparatus for protection From the standpoint of fire hazard, neither pure oxygen nor air containing more than 21 per cent oxygen is to be preferred to ordinary air for use m atmosphere (air) supplied respi rators or self-contained breathing apparatus. 1167

You point out in your letter that Associated Ethyl Company is recommending a special type of standpipe, to be inserted in the drum, which will insure removing all of the Tetraethyl Lead Compound in the drum. - ' You state that they are recbmmgnding with the use of this special standpipe that the washing of the empty drum will not be required. ?

-BL1 of the masks submitted, satisfied by a wide margin, the requirements laid down in the Bureau of Mines Schedule Lumber 19. be are planning experiments on the permeability of at least one"brand of air-line hose to tetraethyl lead and iso-propyl ether.

It has been a temptation, which has not ene resisted by many persons, some of whom snould know be tter, to credit the toxic effects exerted by gasoline so it 3 content of lead alkyls (1ah tetraethyl, tetram.ethyl, e t c .).