Document XNaRpqDXMZ51M14D7bgVZwq4

OETHOtT OFF NEW CENTER BLDG. FRONT STREET AND OLNEY AVENUE PHILADELPHIA 20, PA. ADDRESS ALU COMMUNICATIONS TO THE COMPANY METAL. STAMPING AND ASSEMBLING 20 April 1945 Dr. Drinker Harvard University Cambridge, Massachusetts Dear sir: Mr. W. W. Broughton, special representative of the National Lead Company, has suggested that we write you concerning a toxicity of one of their products which goes under the name of Kirksite. We have been using Kirksite dies in the making of aluminum stampings. We have found that we have had to do quite a bit of grinding and filing on these dies and that we have numerous complaints from our die and tool makers. We would appreciate it, if you could help us by answering the following questions on Kirksite: 1. Will working continuously with this material expose the worker to danger of contracting lead or metal poisoning? 2. Does dust from grinding or filing of this material have any effect on respiratory system? 3. Do you believe the wearing of protective respiratory equipment when grinding this material should be compulsory? 4. Could this dust cause permanent impairment to the worker's vision? 5. Will this dust cause irritation of the skin? Dermatitis? Thanking you very much for youi'^oc^p^V^ilbn in this matter, I am >*- ^ery truly yours, HEINTZ MANUFACTURING COMPANY GED: r G. Edward Deming^Ur. Assistant Personnel Manager