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2、terials 1 , ( .) . 2 . . ( ) . KS L 3409, KS L 3410, 3 1 . 1 1 M 2 R 4 4.1 , , , . 4.2 2 . KS L 3407:2010 2 2 () 1(M) 2(R) mg/L % 0.1 0.002 1.0 0.07 kN/cm 2 kN/cm 2 kN/cm 21.70 2.2 2.16 3.43 1.18 1.60 2.2 1.47 2.45 0.98 . 5 KS L 3409 KS L 3410 . 6 , . 7 . a) b) c) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KS L 3407 :2010 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS High purity graphite materials ICS 81.080 Korean Agency for Technology and Standards http:/www.kats.go.kr