KS D 1991-2007 Method for determination of selenium in copper《铜中的硒含量测定方法》.pdf

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1、 KS D 1991KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS KS D 1991: 2007 2007 6 29 http:/www.kats.go.krKS D 1991: 2007 : () ( ) () ( ) : (http:/www.standard.go.kr) : :2007 6 29 20070358 : : ( 025097274) (http:/www.kats.go.kr ). 7 5 , . KS D 1991: 2007 Method for determination of selenium in copper 1 . 2

2、 . KS D 1651, 3 3,3- (3,3-diaminobenzidine) . 0.000 05 %( ) 0.001 %( ) . 4 3,3- (3,3-diaminobenzidine) 4.1 , . , (III) , . , 2 ( , EDTA .) . pH , 3,3- 3,3- - , . 4.2 . a) b) (1 1) c) d) ( 2, 5, 3) e) (1 1, 1 4) f) 0.20 g (200 g/L) 10 mL 200 mL . KS D 1991: 2007 2 g) 250 g , 500 mL . . h) (1 1) 500

3、mL g) 20 mL . . i) (1 4) j) EDTA 2 2.0 g , 100 mL . k) 3,3- (3,3-diaminobenzidine) 3,3- (3,3-diaminobenzidine) 4 0.10 g 4.0 mL . . l) m) (5 g Se/mL) 99.9 %( ) 0.500 g (1 1) 20 mL . , 1 000 mL (500 g Se/mL) . 100 . n) (metacresol purple) 0.1 g (10 g/L) 10 mL , 200 mL . 4.3 5.0 g . 4.4 4.4.1 (200 mL)

4、 35 mL . 1). , 50 mL . 4.4.2 . a) 4.4.1 50 mL 4.2(f) 3 mL . 4.2(g) 20 mL , . 10 , 2)(5 B) 4.2(h) 3, 4 3). b) , . (1 1) 30 mL , . 1 mL . c) , 10 mL EDTA 4.2(j) 5 mL4) , 4.2(n) 2 3 , (1 1) . pH 1) , 200 . 2) 70 80 . 3) . 4) EDTA 10 mL . , 15 mg , EDTA 5 mL . KS D 1991: 2007 3 (1 4) (1 4) pH 2.6 2.8 ,

5、 30 mL . 4.4.3 . a) 4.4.2 c) 3,3- 4.2(k) 6 mL 50 1 , . (1 1) . pH (1 1) pH 8 . b) (100 mL) 50 mL . 10 mL 1 , . 4.4.4 4.4.3 b) (10 mm) , 420 nm . 4.5 . 4.6 4.2(m) 0 10.0 mL( 0 50 g) (100 mL) , 2 mL 1). , 4.4.2 c) 4.4.4 , . 4.7 4.4.4 4.5 4.6 . %( ) 100=mA A : (g) m : (g) 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS D 1991: 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Method for determination of selenium in copper ICS 77.120.30

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