1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS E ISO 6830 EDTA KS E ISO 6830:2012 2012 12 7 http:/www.kats.go.krKS E ISO 6830:2012 : ( ) ( ) () ( ) : (http:/www.standard.go.kr) : :2002 12 23 :2012 12 7 2012-0685 : : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS E ISO 6830:2012 i i 1 1 2 1 3 1 4 1
2、 5 .3 6 3 6.1 3 6.2 .3 7 4 7.1 4 7.2 4 7.3 4 7.4 .5 8 .6 8.1 6 8.2 .6 8.3 .8 9 .8 A( ) 9 B( ) .10 C( ) .11 KS E ISO 6830:2012 ii 1986 1 ISO 6830, Iron ores Determination of aluminium content EDTA titrimetric method , . KS E ISO 6830:2012 EDTA Iron ores Determination of aluminium content EDTA titrime
3、tric method 1 EDTA . , 0.25 % 5.0 % . 2 . . ( ) . KS E ISO 3082, KS E ISO 7764, KS L ISO 385 1, 1: ISO 3081, Iron ores Increment sampling Manual method ISO 3083, Iron ores Preparation of samples Manual method 3 . R2O3 . . . (EDTA) . EDTA . EDTA . 4 , . KS E ISO 6830:2012 2 4.1 (Na2CO3) 4.2 (Na2O2) .
4、 4.3 ( 1.40 g/mL) 4.4 ( 1.16 1.19 g/mL) 4.5 (1 5) 4.6 (1 1) 4.7 (1 1) 4.8 (NH4Cl)(10 g/L) 100 mL 2 (0.1 mL) 4.9 ( )C6H5N(NO)ONH4 (60 g/L) ( 20 ) . 10 . 4.10 4.11 ( 1.67 g/mL) 4.12 (100 g/L) 4.13 (10 g/L) 4.14 (3 )(CH3COONa 3H2O) 136 g 600 mL . 7 mL 1 L . . 4.15 (100 g/L) 100 mL (NH4F) 10 g . . 4.16
5、0.1 g . 100 mL . KS E ISO 6830:2012 3 . 1 . 4.17 c (Zn2) 0.01 mol/L 125 mL (99.99 % Zn) ( ) 0.653 8 g . (4.1) 2.5 mL 5 mL . . , 2 mL . 50 mL 2 . (4.13) pH pH 4 . 1 000 mL . 4.18 (EDTA) (2 ) c (C10H14N2O8Na2 2H2O) 0.01 mol/L . EDTANa2(2 ) 3.72 g 1 L . . 5 5.1 20 mL . 50 mL 5.2 . 5.3 ( , ) 5.4 KS L IS
6、O 385 1 . 6 6.1 ISO 3081 KS E ISO 3082 , KS E ISO 3082 ISO 3083 100 m . , 160 m . KS E ISO 7764 . 6.2 KS E ISO 6830:2012 4 . . KS E ISO 7764 (1052) ( ). 7 7.1 A 2 . “ ” . , , . 7.2 1 1 . . 6.2 . , . , . . . 7.3 1 (6.2) 0.000 2 g . . 1 % g mL mL mL mL 0.25 1.0 1.0 2.5 2.5 5.0 0.3 0.2 0.1 20 15 10 20
7、20 20 15 20 KS E ISO 6830:2012 5 7.4 7.4.1 (5.1) (4.1) 0.50 g . (7.3) (4.2) 2 g . (5.3) . ( ) . . 250 mL . 10 mL . . 10 mL . (4.6) 20 mL . . 70 mL . 7.4.2 . (pH 6.5) (4.7) . 1 (5A) . . (4.8) 5 5 . . . (4.6) 25 mL . . 20 50 mL . 20 . 250 mL . 25 mL . (4.9) 20 mL . (4.10) 20 mL . 1 . . (4.10) 5 mL . .
8、 1 (4.9) (4.10) . 2 (4.10) 20 mL 1 , . . 250 mL (4.5) 5 mL . . (4.3) 5 mL (4.11) 10 mL . . (4.6) 10 mL . 50 mL . . 7.4.3 KS E ISO 6830:2012 6 EDTA(4.18)(25 mL .) . (4.12) 1 pH pH 2.5 (4.13) 1 pH 4 . 100 mL . . 10 . (4.14) 15 mL (4.16) 7 ( 0.3 mL) . (5.2) . (4.17) . (30 ) . (4.15) 10 mL 10 . (4.16) 2
9、 3 . EDTA . (30 ) . V mL . 8 8.1 ( %) . mVw=98026.0(%)Al(1) V : 7.4.3 (4.17) (mL) m : (g) 0.026 98 : 10 38.2 8.2.1 . r 0.028 9 X 0.016 7 (2) P 0.042 2 X 0.032 3 (3) r 0.010 4 X 0.006 0 (4) L 0.013 4 X 0.010 2(5) X : , . (2, 4): (3, 5): (8.2.3) r : ( ) P : r: L: 8.2.2 KS E ISO 6830:2012 7 (7.2) . , 1
10、0 . nNnssAA2r2LcWc2Wc2Lcc2 + (6) Ac: A : sLc: sWc: nWc: Nc: n : ( n 1) L r: 8.2.1 . (6) , |Ac A| , . . . 8.2.1 (2) r 1 A . . . . a) Wc2Wc/ ns sLc . b) . nAAr22Lc22 + (7) 8.2.3 A . . a) 5 , . b) 5 , 0 5 1 . KS E ISO 6830:2012 8 c) 5 , 0 5 , 0, 2, 4, 6, 8 , 1, 3, 5, 7, 9 1 . 8.3 (%)5889.1(%)lAOAl32ww
11、= 9 . a) b) c) d) e) KS E ISO 6830:2012 9 A ( ) r: 8.2.1 . x1, x2 |x1 x2|r |x1 x2|1.2r x3, x4 x3x4x1, x2, x3, x41.3r x1, x2, x31.2r x x1, x2, x3, x4 221xxx+=3321xxxx+=44321xxxxx+=KS E ISO 6830:2012 10 B ( ) 8.2.1 9 23 6 1976 1978 . C . B.1 . B.1 (%)Marcona Krivoj Rog Philippine Iron Sand British sin
12、ter(Scunthorpe) Minette British sinter(Rotherham) 0.36 0.66 1.44 1.76 2.34 3.50 1 ( ISO/TC 102/SC 2N 490E 1978 5 ) ISO/TC 102/SC 2 ISO/TC 102 . 2 KS A ISO 5725 . KS E ISO 6830:2012 11 C ( ) 8.2.1 . C.1 X % P r L rP Lr r EDTA 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS E ISO 6830:2012KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Iron ores Determination of aluminium content EDTA titrimetric method ICS 73.060.10