Document JvNLDB0Mk8Qq2OXr0DBV892na

Mr. R. 0. Sninslak V . H. l.arkhaa it Co. 506 Olive Street St, Louis 1, Klssourl Aor*t 25, 1961 l/ -7 ( ' Dost Dick* HOSSAiTO CHEilCAL CCb'lPA*!! CHOCOLATE BAYCU, TEXAS BOVLAXION AND FIRiPROOFIBO SPECIFICAXIONS This letter la being written to suppl wnt also of July 21 addressed to you on this sane subject. '.Jo understand from ?-ey Jrcen that tie proposod protection for the polyurethane cold Insulation will provide protection for LO nlnutes against an external temperature of ll.CC0 By inspection of the standard tine tenperature euro it looks aa tdc-gh thi3 vould be equivalent to about hS minutes under that set of condi tions. Although we had Initially asked to be shown that t..c insulation vciid stand lliOG0 F for one hour without damage to the oolyurcthane, ve are willing to accept the proposal that will give us lc minutes. ~o,tvcr, we do want to see sore tost rosults that will assure us t..si tie 1C minute figure is not just a figment of acne salesnan1a irs^ination. V..at ve would like Is of course to have e test panol made up and sub mitted to O.L.j or come other laiio .Tally recognised testing laiorotory. Presumably I-Ionsonto will try to prevail upon Lnlcn Asbostos to arranee for the test. If they do so I vould appreciate it if you vo-ld ask inioa Asbestos to gei in touch with our Hr. Roger Russell prior to arranging the test because this will be sonevhat different from the usual labora tory procedure in that ve are interested in the oonditicn of one of tie internal component of the panel rather than the overall condition of the panel as a whole. This may roouire sons-special joint consideration of tejt procedure between laboratories and the F.I.A.