1、 KS L 3309KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS 2007 6 11 http:/www.kats.go.kr KS L 3309: 2007KS L 3309: 2007 : () ( ) () ( ) : (http:/www.standard.go.kr) : :1973 12 28 :2007 6 11 20070258 : : ( 025097301) (http:/www.kats.go.kr ). 7 5 , . KS L 3309: 2007 Chrome brick 1 . . 2 . . KS L 3101, KS L 3
2、104, KS L 3111, KS L 3114, KS L 3115, KS L 3119, KS L 3128, 3 KS L 3101 . 4 a) , . b) 1 . 5 , . KS L 3111, KS L 3114, KS L 3115, KS L 3119, KS L 3128 KS L 3309: 2007 2 1 MPa(kgf/cm2) 29.4300 (%) 25 2.90 T2( ) 1 450 Cr2O3(%) 27 6 a) 1 4. . b) KS L 3104 . c) , , , 4. . 7 1 1 . 8 2 . 2 CR 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS L 3309: 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Chrome brick ICS 91.100.20