Document pm40ze0qRR7nDpGVJbE1V99nX

6l24AiEGiad 4121/53-C-4.66 Ser 388-6124A H. K. Porter Company, Ino. Thermoid Division Porter Building Pittsburgh, Pennsylvania 15219 .. .' ' Attention: Mr. J. M. Zinont ' Gentlemen* . This ia to noknovledg your letter of 29 September 1972 concerning Federal Specification SS-C-466, doth, Thread and Tcpoj Aabestoo. t Your suggested proposal to emend SS-C-466 has been evaluated and although basically desirable It is of the opinion of this Center that it is impract icable to impose in a standard test mot-hod to determine compliance. The long term safety benefits could not bo ascertained In & short enough period of timo to bo useful. '' Due to the health hazard Asbestos produces cur principal effort is now directed tovard replacement. Action to emend the document vill not be implemented at this time. Your interest in tills document Is appreciated,' fiincerly yours, Prepared by: R. Gousha, oxt 61530 Typed by: G. Davec, ext 61519 11/9/72 .sS / - /;.j VdF j . x'. 7 4*.. i ;'' ^ / ,/ . xrX-r^ ' s'-------X i>vY * * ?' ' ' -"-' * T-->V,` >-* /o' fS / o oo c-* r-ftUMi