KS E ISO 9686-2011 Direct reduced iron－Determination of carbon and or sulfur－High-frequency combustion method with infrared measurement《直接还原铁 碳和 或硫的测定 红外线测量的高频燃烧法》.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS E ISO 9686 KS E ISO 9686:2011 2011 10 24 http:/www.kats.go.krKS E ISO 9686:2011 : ( ) ( ) ( ) : () () : (http:/www.standard.go.kr) ： ：2006 4 28 ：2011 10 24 2011-0453 ： ： ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS E ISO 9686:2011 i . ii 1 1 2 1 3 1

2、 4 1 5 .2 6 3 6.1 3 6.2 3 7 3 7.1 .3 7.2 4 7.3 4 7.4 .4 7.5 .5 8 .5 8.1 6 8.2 .6 9 .8 A( ) 9 B( ) .10 C( ) / 11 C.1 .11 C.2 .11 D( ) 12 E( ) 13 KS E ISO 9686:2011 ii 2006 2 ISO 9686, Direct reduced iron Determination of carbon and/or sulfur High-frequency combustion method with infrared measurement

3、, . KS E ISO 9686:2011 Direct reduced iron Determination of carbon and/or sulfur High-frequency combustion method with infrared measurement , , . . . 1 / . 0.05 % 2.5 % / 0.001 % 0.05 % . 2 . . ( ) . KS B ISO 7550, KS E ISO 7764, KS E ISO 10835, KS L ISO 1042, 3 (high frequency : HF) . , . . 4 . 4.1

4、 , 99.5 % KS E ISO 9686:2011 2 . 4.2 , 0.7 mm 1.2 mm . 4.3 , (C ： / . c ： Ac ： CRM/RM / C ： CRM/RM KS A ISO Guide 35, . CRM , 2/1c2d2L)(2+= AVnC V(Ac)： Ac ( CRM 0) n ： CRM/RM CRM . 8.2.5 , B . a) 5 , . b) 5 0 5 KS E ISO 9686:2011 8 . c) 5 0 0, 2, 4, 6, 8 5 , 1, 3, 5, 7, 9 . 9 . a) b) c) d) e) f) KS

5、E ISO 9686:2011 9 A ( ) 1 (4.3)： 1.9 g 2 (4.4)： 0.4 g 3 (7.2) (4.6)： 0.4 g 4 (4.5) 5 (4.4)： 0.9 g A.1 KS E ISO 9686:2011 10 B ( ) 2 1 1 KS E ISO 9686:2011 11 C ( ) / C.1 . . O- . , . HF 1.2 2.5 kVA , . 2 MHz, 6 MHz, 15 MHz, 20.0 MHz . . . . ： 25 mm ： 25 mm ： 20 mm ： 2.5 mm ： 8 mm , , , . , . . , . C

6、.2 , CO2 / SO2 . CO2 / SO2 . CO2 / SO2 Luft . . ( ), , . . (micro-processor) . KS E ISO 9686:2011 12 D ( ) 8.2.1 1986 1988 4 (DRI) 7 13 . E . D.1 . 1 ( ISO/TC 102/SC 2 N 929 E) ISO/TC 102/SC 2 . 2 KS A ISO 5725 2 ( ) 2： . D.1 % % DRI 16/85 DRI 17/85 DRI 18/85 DRI 19/85 1.838 6 0.365 6 0.096 9 0.096

7、1 0.001 8 0.001 2 0.001 3 0.039 3 KS E ISO 9686:2011 13 E ( ) Y (%) X ( %) E.1 X KS E ISO 9686:2011 14 Y (%) X ( %) E.2 X 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KS E ISO 9686:2011 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Direct reduced ironDetermination of carbon and/or sulfurHigh-frequency combustion method with infrared measurement ICS 73.060.10 Korean Agency for Technology and Standards http:/www.kats.go.kr