Document vBnq4MKnxR2eOz976X1jn7G2m

4 T ,July 3 1955 Dr* R* D* Mudd Fisher Body Company Norwood Division IflOQ Smith Road Norwood* Ohio Dear Dr* Mudd* I am sending you herewith a report and interpretation of our analysis of the filter pad from the respirator As the report indicates, I regard the situation disclosed by the analysis to be a definitely hazardous one, provided the filter pad portrays the effects of a characteristic ex posure. I do not consider such an atmosphere a safe one and X feel that there is certainly a necessity for certain precautionary measures I have certain reservations about the adequacy of respirators If they are worn carefully and faith fully they are likely to be satisfactory* but it is sometimes difficult to have them used consistently and In the proper manner I enclose herewith a bill for the analysis* Very truly yours* RAKjls Robert A kefcioe* "1*'^* N9848 Filter from Respirator In Use one week by an employee of Fisher Body Norwood Division* Sample submitted by Dr* R* D* Mudd* The operation done by the employee consisted of discing down lead seams, the disc containing circulating water* Filter in use about 3 6 hra* Lead Iil.Q mgs* On the basis of a pulmonary ventilation of 20 cubic meters during this period of time the lead content of the atmosphere, if it all passed through the respirator, ws about 20 mg* ?b per 10 cu*m* of air* Fo r safety there should be not more than 5 mg* per 10 cu.m* The atmosphere of the plant in the immediate vicinity of this operation is therefore definitely hazardous and would be expected to produce lead poisoning unless adequate protection were provided* Reported! 7-2-1955 N9848.01