Document LKM34nxk7mrRY07MdbpDDYzq3

TEr - ?.'/ -. - ' ?*s:'Jn.'-* : ' ' :"* LIA09828 1',. V'.'. . * r . i. *ES ssra?, 1A P. Fe5SBW8T8fB,8 -", I-'. .'.: - >t i" *.' o--'.' cf tfcS ^&1&9 &S&S PSfC&SCia ' fellsslRg tisfi-jriiiea 4a s s ^L^t *?:3? t# CUr'-:*? f CZz'Z*- f.Ts 9 - ".la fS&cS a f&iistre of le-Ti eT.2 -^r,_.' t xs. bsrrssrad tha eftd lit* 5 I-sssi f>i X',-s ,s?.sssa crfii-*r.:.t ic ti> l -sTfiC: < firsidoa of tbs Koastt&o Chertcel Ccc.siJar in Evsmt* s': mcbascc. i..3 - x ^ss&ctioe bsloe Is fraa a letter Crca Kr. e Ja plant SapsriatgalHst* for sany years, 3 used oselCh, eovea-pound lead cell la oor Ala process cgrtpaent. * cbtcicscd ess tverase of bout to ye&rs esrvioe Xt-ea this d csL S-tss* four to fire pears ago, os an expe-riatmt, cos task tia equipped with one-inch, nJLna-fouad odl. Experience haa daaonstreted better prf&raars by the heavier call, tod it has bson adopted as standard la ths deportccct tinea that tlxe, 7a never considered this specification U betas outside standards. 7a Barely order our reqdreocnts sad have received , what vs desired without question* The oae-lash, rdoe-pourd eoll has iasreasod ths arerags 7 Ilfs of this equipoent. Instance* of four years Sendee here been recorded, and the average life Is ertaihly neavr three yean than two at the pretest ties. Of course, the waouni and rate of cpettier.* has eocse bearing, on ooli life] however* a hirier factor is probably the aasourtt of Micter.ance and petering perferaod when nearing the end of a aervice life, which beeoooa an eeanoaie balance of repair vs, repl&ccetent* Ultiaste failure of any lead ooll usually arises because of typical swelling or blister formation.* Very truly yours, i ^s^rs-vs;