Document npo4N0vqGR3gZkwKqb0w6r2km

JOHN R. ENGLEH OR N, PRESIDENT KENNETH W. GREEN. VICE PRESIDENT SIMON 0. STRAUSS. VICE PRESIDENT WARREN I. TRASK. VICE PRESIDENT JOHN i_. KIMBERLEY EXECUTIVE VICE PRESIDENT DAVI O M . BORCIN A SECRETARY AND TREASURER ` AREA CODE 212 OR 9-6020 . . a.Son fowler DIRECTOR OF HEALTH AMO SAFETY , July 14, fs 1500 Mr. John R. Englehorn, Vice President St. Joseph Lead Company 250 Park Avenue Nev York, N. Y. 10017 Dear John: Re: Air Analyses for Lead In making ounside air analyses for lead it is best to use the methods that have been implicitly sanctioned by the U. S. Public Health Service and National Air Sampling Networks. In this way our results will be nearly comparable - I am enclosing for you a copy of the reprint on the PHS analytical method, plus copies of specification- sheets for two types of high volume air sampling equipment. Either of these-pieces of equipment is designed' to run continuously 2k hours a day to obtain the type of sample necessary. If your people can make arrangements to obtain one of these samplers and need further in formation about it, I will be glad to help you A - Let me point out here that omyjnain concern at this - time is to obtain some 2k hour air sampling data at locations on ... plant boundaries of. plants using lead./ I would not want to have "this data sent to menecessarily, but I wouXcTlike to,haye-JxhQX- ( I Jledge~'of~Tts existence so than in can be mentioned discretely to V "those industrial members of the Pennsylvania Air Pollution Control__ Commission. I think you know what I mean. ' Very truly yours, Don G. Fowler DGF: Jb Enc. (PHS Method) (Specification Sheets) --------1 | 4. :hj Look Ahead with Lead R47Q1241