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3、0 2 4.2 , 1.12 g/mL 5 . 5.1 , KS D ISO 3907 5.2 , 200 mL 5.3 , (Gooch) , (bed) , 800 1 000 3 . . 5.4 6 6.1 . 180 m . 6.2 2 3 . 7 7.1 2.5 g 0.01 g . 7.2 (7.1) (5.2) , (4.1) 75 mL , (5.2) (steam bath) 5 . (4.2) 10 mL , 1 (5.2) . . . . . 7.3 (5.3) . , 8 mm 10 mm , . KS D ISO 3908:2010 3 7.4 . (5.3) (7.
4、2 ) . 2 . . 2 , ( 500 mL ) . (KS D ISO 3907, 4.1.5 ) 110 . 7.5 2 . 7.3 . (4.1) 75 mL (4.2) 10 mL (5.3) , 7.4 . 7.6 KS D ISO 3907 (5.3) . 1 200 . 8 8.1 (%) . C(%)01229.27mmm m0: (g) m1: (g) m2: (g) 27.29 : 100 8.2 2 3 1 . 1 % 2 % 3 % 0.02 0.1 0.1 0.5 0.02 0.04 0.03 0.05 KS D ISO 3908:2010 4 8.3 0.01 %( ) . 9 . a) b) c) d) e) () 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KS D ISO 3908:2010 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS HardmetalsDetermination of insoluble(free) carbon Gravimetric method ICS 77.160 Korean Agency for Technology and Standards http:/www.kats.go.kr