Holland, formerly Terminal Superintendent of their Chattanooga Terminal, has lead pcoouislodnninogt.deMfirn. iHteollylanddiaghnaossbeehenissiccakses.incHee hOacstobbeeern1i9n49thaet whohiscphittaiml esinthceey that time and I think at present is in Nashville at the Vanderbilt Hospital.

Kerley of the Ethyl Corporation, you indicated that, while brown was a poor color, the sample submitted would appear to be distinctive enough to satisfy Regulation 9 for leaded fuels.

Having in mind that the best of us (as well as the worst of us, including your humble servant) may be in fluenced pro or con by the source of a proposal, I re frained from mentioning in my letter of December 14th that the suggested changes in lead MACs quoted therein were those of our good friend Phil Drinker.

Schradin in June at which time; he suggested that on request yoxn^^boratory would analyze a sample of blood of our employee or the presence of tetra ethyl lead, we desire tha^you provide Dr.

Kehoe: I hed a memorandum from you some time back ad visin g me of th e r e ce ip t of our lead con tr ol procedure which I had sen t you fe e lin g th at i t might be o f some in t e r e st to you In your l e t t e r you mentioned th at you expected to give me some comments la t e r on, I would lik e to l e t you know t h at I ap pr eciat e any comments th at you would lik e to make and ce r t ain ly would give ser iou s con sid er at ion to any su gge st ion s.

Physical properties of these resins, both alone and in floor tile formulations, are compared with VYHH which is at the present time the leading commercial resin in the field of vinyl asbestos floor tile.

Kerley of the Ethyl Corporation, you indicated that, while brown was a poor color, the sample submitted would appear to be distinctive enough to satisfy Regulation 9 for leaded fuels.

Examination of the data obtained during the fueling with fuel containing 1.7 ml, TEL/gallon indicates that the concentrations of lead (L.I.A.) within the garage are all satisfactory.

Conversely, if an unknown radio nuclide is present, sufficient measurements will lead to precise identification of the radionuclide For example--because radionuclide of the element iron is chemically the same as its nonradioacfave counterpart, stable iron, some of it can be mixed with the nonradioacbve iron In order to tag it so that it can be followed in a process (or a corro sion test) to detenmoe what is happening to it By the same token, persons working with certain radioactive materials can easily de tect the presence of the radioactive materials in minute amounts In the case of a radio nuclide which has a very short half-life and which is disintegrating rapidly, the weight of the material may be very mmnt but die magnitude of the exposure to disintegrating atoms of the material may be very great Guide level concentrations may be found in Handbook 69 published by the National Bureau of Standards The statement that die acceptable breath ing levels of some materials are literally id terms of disintegrating atoms per day im plies that these materials are extremely toxic They are, but as a general rule they are still measurable and quickly detectable Many toxic (but not radioactive) materials are used routinely m industry, and it may take hours or days to evaluate the extent of the risk Radionuclides, in contrast, usu ally can be readily detected with appropri ate instruments Units of radiation measurement Radiation may be expressed in several different units The International Commis sion of Radiological Units and Measure ments (ICRU) issued a report0 m 1962 defining units and measurements Some of these units follow U S Department of Commerce, National Bureau of Standards, Washington, DC Radiation Quantities and Units Handbook 84.

McPherson could not recall, and he also diagnosed the trouble as lead poisining.

Kehoe: In view of your interest in the lead content of paint used on toys, I thought you would like to have a copy of a letter which has just reached me from Mr.

LEAD INDUSTRIES ASSOCIATION 9 tminroH nwwf 60 Saat A2ni Stroot NCW VOW IT.

Office Safety LEADING ACCIDENT TYPES OFFICE EMPLOYEES COMPARED WITH OTHER INJURED WORKERS 111 364 FALL OR SLIP 474 20.8 STRAIN OR OVEREXERTION 138 189 239 STRUCK BY OR STRIKING AGAINST 164 17 5 27.4 | MOVING MOTOR VEHICLE ACCIDENT CAUGHT IN OR BETWEEN KIEFER STUDY CALIFORNIA STUDY OFFICE EMPLOYEES ALL OTHER WORKERS ____ I________ 0 10 20 30 40 Per Cent of Total Number of Injured Workers Fig 15-2 --A comparison of the California study with the Equit able study, and of office employees with all other workers 50 example, paid out $102,000 over eight years at one facility just for injuries incurred by people falling out of chairs Approximately 25,000 people worked at the plant, on the average, and more than half were office work ers Fourteen chair accidents occurred, and the two worst totaled $97,000 Studies made by the State of California Department of Industrial Relations, and by Norvm C Kiefer, M D, Chief Medical Director, Equitable Life Assurance Society of the U S (see "References"), show that this is not an isolated incident The California State Department of In dustrial Relations analyzed reports filed by more than 3000 California employers (employ ing more than one million office workers) on disabling injunes to employees during 1959 When extrapolated to nationwide scale, onthe-job office accidents would annually amount to about 40,000 disabling injuries at a direct cost (indemnity benefits and medical expenses) of about $100 million (This figure does not include any indirect costs for em ployers, workers, or the nation ) "Office worker" is defined as (m the California study) "a person primarily engaged in performing clencal, administrative, or professional tasks indoors in an office at his employer's place of business " This defini tion would not cover salespersons, claims adjusters, social workers, medical and teach- 374

The one, of which I send four copies, is a report in which the results of the toxicological investigation of the lead alkyls by Dr.

.^.a*8.88 TcTffffi|~ Ironlnt Board 17REO. 23.30 " SlUj* nllmalnl -iJ'*-Catry All leading Los Angeles 1 imes L vr Yeuri ai 10-11-1953 cuuP&pvol lion.