1、 KS D 2024KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS KS D 2024: 2007 2007 6 29 http:/www.kats.go.krKS D 2024: 2007 : () ( ) () ( ) : (http:/www.standard.go.kr) : :1978 12 2 :2007 6 29 2007 0357 : : ( 025097274) ( http:/www.kats.go.kr). 7 5 , . KS D 2024: 2007 Methods for determination of zinc in magn
2、esium alloys 1 . 2 . . KS D 2022, KS D ISO 1784, EDTA KS D ISO 4194, KS M 0016, 3 KS D 2022 KS M 0016 . 4 a) (A ) 0.1 7.0 % . b) (B ) 0.4 7.0 % . c) 0.05 8.0 % . 5 (A ) 5.1 , . , pH . ( XO .) ( EDTA .) . 5.2 a) b) (1: 5) c) (1: 11) KS D 2024: 2007 d) (1: 13) e) (1: 1) f) (1: 9) g) (200 g/L) h) 0.015
3、 mol/L EDTA EDTA(2 ) 5.584 g 1 000 mL , . 1 mL . (99.99 % ) 1.000 g (300 mL) , (1: 1) 20 mL . (1 000 mL) . 25.0 mL (300 mL) , (200 g/L) 10 mL (1: 1) pH 5.3 5.51) , 100 mL . 5.5 d) 2) , 0.015 mol/L EDTA 1 mL . , . 21025.0VVf= f : 0.015 mol/L EDTA 1 mL (g) V1: 0.015 mol/L EDTA (mL) V2: 0.015 mol/L EDT
4、A (mL) i) XO XO 0.1 g (1: 1) 100 mL . 5.3 1 , . 1 5 mm . 0.18 0.25 mm(60 80 ) 5 cm , . , 5 mm . 1) pH . 2 KS D 2024: 2007 : mm 5 1 1.5 16 1 5.4 1 . 1 % g 0.1 2.0 1.00 2.0 7.0 0.305.5 a) (5.3) (1: 1) 40 mL, (1: 13) 60 mL (1: 5) 20 mL 2 mL . b) 1) 1 g (200 mL) . 2) 15 mL , 13 mL , .2)3) , , 50 mL . c)
5、 1) b) 3) a) 2 mL , . 2) (1: 11) 40 mL , 3 mL .3) . 3) (1: 13) 40 mL 2 mL , . (300 mL) . d) 2) (1: 9) . 3) , , . 3 KS D 2024: 2007 1) c) 3) 10 mL , (1: 1) pH 5.3 5.5 ,1) 100 mL . 2) XO 5 6 , 0.015 mol/L EDTA , 0.015 mol/L EDTA . 5.6 . 5.7 (%) 100)(21=SfVV V1: 5.5 d) 2) 0.015 mol/L EDTA (mL) V2: 5.6
6、0.015 mol/L EDTA (mL) f : 0.015 mol/L EDTA 1 mL (g) S : (g) 6 (B) 6.1 . , (III) , N,N- (II) . 6.2 a) b) (1: 1) c) (1: 4) d) e) (1: 1) f) (1: 49) g) h) (III) i) (II) (II) (3 ) 22.00 g (300 mL) , , (1 000 mL) . . (99.99 %) 5.000 g (300 mL) , 50 mL . , . (1 000 mL) , . (300 mL) 20 mL 100 mL , 10 g (1:
7、1) pH 4.5 8.01) (1: 4) 15 mL 200 mL . (III) 0.05 g 3 mL 2 3 (II) , 4 KS D 2024: 2007 (II) 1 mL . . 21100.0VVf= f : (II) 1 mL (g) V1: (II) (mL) V2: (II) (mL) j) N,N- 0.1 g 10 mL . 6.3 2 . 2 % g 0.4 1.5 5.0 1.5 3.5 2.03.5 7.0 1.0 6.4 a) 1) (500 mL) . 2) 25 mL , 1.0 g 7.5 mL . 10 mL . .4)b) 1) , a) 2)
8、10 g , (1: 1) pH 4.5 8.01) , (1: 4) 15 mL 200 mL . 2) , a) 2) 10 g , 200 mL . (1: 1) pH 8.51) , . (5 A) . (1: 49) , (1: 1) 20 mL . (500 mL) , (1: 1) pH 7.0 7.51) , (1: 4) 15 mL 400 mL . c) 1) , b) 1) (III) 0.05 g 3 mL , 2 3 (II) , (II) . 4) (5 B) , (500 mL) . 5 KS D 2024: 2007 2) , b) 2) (III) 0.10
9、g 3 mL , 5 6 (II) , (II) . 6.5 . 6.6 (%) 100)(21=SfVV V1: 6.4 c) (II) (mL) V2: 6.5 (II) (mL) f : (II) 1 mL (g) S : (g) 7 7.1 , , . 7.2 a) (1: 1) b) c) (6 ) 41.8 g 500 mL . 1 mL 10 mg . d) (100 g Zn/mL) (99.99 % ) 0.100 g (200 mL) (1: 1) 10 mL . , , . (1 000 mL) . 7.3 a) 1) 0.50 g (300 mL) . 2) 20 mL
10、 (1: 1) 20 mL . 1 mL , . , .5)3) (250 mL) . 5) (5 B) (300 mL) . 6 KS D 2024: 2007 3 (250 mL) .6) 3 % mL 0.4 2.0 50 2.0 4.0 254.0 8.0 10 b) a) 3) 213.9 nm , 7) . (%) 100BSA A : (g) S : (g) B : 6) 0.4 % . 7) . a) 3 (250 mL) .8)b) 0 20.0 mL( 0 2 000 g) , (1: 1) 2 mL . c) , 213.9 nm , . 8) 6) 50 mL (250 mL) . 7 135513 7017 (02)60094114 (02)600948878 http:/ KS D 2024: 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Methods for determination of zinc in magnesium alloys ICS 77.120.20; 71.040.40 Korean Agency for Technology and Standards http:/www.kats.go.kr