KS E ISO 6130-2011 Chromium ores－Determination of total iron content－Titrimetric method after reduction《铬矿石 铁的总含量的测定 还原后的滴定法》.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS E ISO 6130 KS E ISO 6130:2011 2011 12 13 http:/www.kats.go.krKS E ISO 6130:2011 : ( ) ( ) () ( ) : (http:/www.standard.go.kr) ： ：2001 12 31 ：2011 12 13 2011-0565 ： ： ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS E ISO 6130:2011 i . ii 1 1 2 1 3 1 4 1

2、 5 .3 6 3 7 3 7.1 3 7.2 3 7.3 .3 7.4 4 8 .5 8.1 .5 8.2 5 8.3 .5 KS E ISO 6130:2011 ii 1985 1 ISO 6130, Chromium ores Determination of total iron contentTitrimetric method after reduction , . KS E ISO 6130:2011 Chromium ores Determination of total iron content Titrimetric method after reduction 1 . 0

3、.532 % . ISO 6629 . 2 . . ( ) . KS E ISO 6153, KS E ISO 6154, ISO 6129, Chromium ores Determination of hygroscopic moisture content in analytical samplesGravimetric method ISO 6629, Chromium ores and concentrates Methods of chemical analysis General instructions 3 , . (III) . (III) (II) . (II) (II)

4、. (II) . 4 4.1 , 1.40 g/mL 4.2 , 1.84 g/mL KS E ISO 6130:2011 2 4.3 (1： 20) 4.4 , 1.50 g/mL , , . . , , . 4.5 (1： 2) 4.6 (1： 9) 4.7 (1： 100) 4.8 , 1.14 g/mL , . . , . . , . 4.9 4.10 , 0.91 g/mL 4.11 4.12 , 300 g/L 4.13 (II)- (1/2), 100 g/L (SnCl2 2H2O) 10 g ( 1.19 g/mL) 30 mL , 100 mL . 4.14 (), 50

5、g/L 4.15 - (4.2) 150 mL ( 1.70 g/mL) 150 mL 500 mL . 1 000 mL . 4.16 , 30 g/L 4.17 , , c(K2Cr2O7) 0.01 mol/L ( 140 150 ) 2.942 g 1 000 mL , 150 200 mL . 4.18 ()- (1/6), 0.01 mol/L KS E ISO 6130:2011 3 (II) 6 (NH4)2SO4 FeSO4 6H2O 4 g (4.3) 50 mL . 1 000 mL , . (4.17) . 4.19 (C12H10O3NSNa), 2 g/L 4.20

6、 (C12H10O3NS)2Ba, 10 g/L (4.2) 5 6 KS E ISO 6153 . KS E ISO 6154 . 7 7.1 1 . 1 (4.4) % g mL 5 5 0.2 0.5 30 50 7.2 . (7.4) (II) (4.18) 1.0 mL . 7.3 7.3.1 400 500 mL (7.1) , (4.1) 5 mL, (4.2) 20 mL (4.4) 1 . , 1015 . , 15 20 mL . . KS E ISO 6130:2011 4 , 80 100 mL . , (4.7) 1215 23 . 400 mL , . , 800

7、900 . , (4.1) 45 , (4.8) 2 3 mL , 800900 . (4.9) 1 2 g 1 0001 100 . , (4.6) 20 30 mL . . (4.10) , 5 mL . (4.16) 1 mL , 7.4 . 7.3.2 ( ). (4.11) 5 g (7.1) 12 g . 500 600 , 700 5 . , 600 mL , 300 mL . (4.12) 20 mL 5 . , . (5B) . 34 . (4.6) . . (4.5) , (4.6) 56 . . 350 400 mL , (4.16) 1 mL . (4.10) , 5

8、mL . 7.4 , 23 , . , (4.12) 56 . . (4.6) 30 35 mL , 56 . (III) . 30 40 mL , (4.7) . KS E ISO 6130:2011 5 , (II)(4.13) , 1 ( ). 100 mL , (II)(4.14) 5 mL . 23 . (4.15) 40 mL (4.19) 1 mL (4.20) 3 , (4.17) . - . 8 8.1 wFe(%) . wFe(%) KmVV100513 003.0)(01 V0 ： (II) (mL) V1 ： (4.17) (mL) m ： (g) K ： 8.2 2

9、, wFe(%) , % , %( ) 0.5 wFe(%) 1.0 1.0 wFe(%) 2.0 2.0 wFe(%) 4.0 4.0 wFe(%) 8.0 8.0 wFe(%) 16.0 16.0 wFe(%) 32.0 0.10 0.14 0.20 0.25 0.30 0.40 8.3 wFeO(%) 1.286 5wFe(%) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KS E ISO 6130:2011 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Chromium oresDetermination of total iron contentTitrimetric method after reduction ICS 73.060.30 Korean Agency for Technology and Standards http:/www.kats.go.kr