1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS D 2312 KS D 2312:2011 2011 7 22 http:/www.kats.go.krKS D 2312:2011 : ( ) ( ) NS ( ) : (http:/www.standard.go.kr) : :1974 12 2 :2011 7 22 2011-0249 : : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS D 2312:2011 Manganese metal 1 . 2 . . ( ) . KS D 0006
2、, KS D 0044, (3) , , , , KS D 1760, KS D 1816, 3 1 , M Mn E . 4 20 . 5 5.1 1 . , 2 . 1 ( %) Mn C Si P S Fe M Mn E 0.01 0.01 0.01 0.04 0.01 KS D 2312:2011 2 2 ( %) H 0.001 6 6.1 1 . a) KS D 0006 b) KS D 0044 6.2 . a) KS D 1816 b) KS D 1760 7 5. . . 8 , . a) b) c) d) e) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KS D 2312:2011 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Manganese metal ICS 77.100 ; 77.120.10 Korean Agency for Technology and Standards http:/www.kats.go.kr