Document 99mj6y0dEjqNa5JKM3y5YzngR

(33 1 :a :e l0- * \ v - -*3 i 3 'X t j /\ Wtuiicftouse Us;iric Corporation Mr. V.C. Williams Stooe 4 Webster Engineering Corporation f.O. Ion 232} Boston, Massachusetts 02107 r, . .. ,j... . i:--r>-v-:/i.t'.S'/i December 28, 197* Saar Mr. William*: Ha hova reviewed your Kovanbar 27th lattar about Cha usa of aabastoa with our Fowar Generation Division Engineering Dapartaant, who advisa that: 1) It la standard prattles to usa gaskets containing aabastoa for oil Haas, vacuum lines, ataam Unas and othar pipa floatas. Substltuta notarial could ba usad If absolutely . necessary to oaat OSHA requirements; . ___ _2) an aabastoa matarlal, trade asms "SUTPAH" la aprayad on tho lnalda of tha~HP~tarbtna autlusmta for hast Insulation and noloa roductlon. Substltuta notarial* may ba availabla, but ora lama effective than "STKDam" ; 3) wo hava not usad aabastoa for tha major Insulating notarial for at laaat four yaars. Fiberglass la currently used. tI 1. \ 'I . | . ..a I. .j,W1 i -I I i Vary truly yours. $ cf? D.l. Sargent