Document 4aB0n7KjqqJQe0n8MQBMJMo4Q

ALUMINUM COMPANY OF AMERICA ^rc-KOr^LC. U/omcs______________ LABORATORY L ib iiC( tffh REPORT TO * E, iS. r,4^KA DATE V lQ-cQ-,4 rep(SAAfc'./y *.713- e/ SAMPLE OF (\\& 71-I-JO. RECEIVED FROM COPIES TO a! 0 . Jcs DESCRIPTION fLAi /-I t v* *1 i >tx^nrv^L ji*-4S1> V' /Jc ,^CL**X**JJ i- Ftl-Ct. -a^ o.rr J:L~/ce L L( 'TV c r" ^.,*T,ry -Jp' '/'/-; / /Tx. /sJC'TC , i 1'.^ Aa/^-1 "- /^oL C^-a-c^yvvax^vA ^ * </' Ji 1- xCLTr-v-^N [r-| J. L. 'Xtu.-O-A^f" L i. - , /*r<ryv\ c^-i___ /-d.rn^a-- ' >-i cU'-Vv.^a* aCIl- Q .LA-a-'_<i1 , 7v*-^ccro-u_ 0- 3 >M J*7o L n0 ^ /Vgg -5-- - '4 ?: r GC~ ''/' fr .1 S' 7^/t1 SF-1633 (REV. 6*62) ANALYZED BY ivlV C Hft. APPROVED BY V979 SEP V 7 ft. U. C. ARD 003752