1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M 1123 ( )KS M 1123:2008 2008 12 19 http:/www.kats.go.krKS M 1123:2008 : ( ) ( ) ()MPT ( ) : (http:/www.standard.go.kr) : : 1993 12 23 : 2008 12 19 2008-0927 : : ( 025097301) (http:/www.kats.go.kr). 10 5 , . KS M 1123:2008 ( ) Zinc cyanide Zn(CN)2M: 117.4
2、1 1 ( .) . 2 . . ( ) . KS M 0016, KS M 0028, 3 , . . 4. 1 . 1 : % (Zn) (CN) (Pb) (Cd) (Hg) (Fe) (Cu) 55 40 0.005 0.01 0.002 0.05 0.05 4 4.1 (Zn) 4.1.1 KS M 1123:2008 2 a) 10 %(v/v% ) b) (36 %) c) 20 % d) 10 %(v/v% ) d) 0.1 M EDTA e) (pH 10) 54 g 350 mL 1 L . f) EBT 0.4 g 3 g (95 %) 100 mL . g) 5 mL
3、- 4,4 - 4 20 mg , . 4.1.2 2.5 g 0.1 mg (400 mL) 15 mL . 1) 50 mL , ( ). , , (1 %) 100 mL (250 mL) . 50 mL , (10 %) 10 mL 200 mL . 10 mL EBT 2 , (10 %) 20 mL 0.1 M EDTA , (HCHO) 10 mL , 5 mL (Zn) . 100250505380060Zn(%) =SfV. S : (g) V : 0.1 M EDTA (mL) f : 0.1 M EDTA 4.2 (CN) 4.2.1 a) (36 %) b) 10 %
4、c) 0.1 N d) 3 % 4.2.2 1) . KS M 1123:2008 3 0.5 g 0.1 mg 1 , 25 30 mL . (3 %) 1 70 mL, 2 30 mL , . ( 80 mL 7 mL) , 10 15 80 mL . (500 mL) , . 300 mL 2 mL . 0.1 N (CN) . 10020050CN(%) =SfV. S : (g) V : 0.1 N (mL) f : 0.1 N 4.3 ( , , ) 4.3.1 a) ( ) b) ( ) 11.1 g 10 mL (1 L) . c) 1.60 g, (12 ) 8.63 g,
5、(5 ) 3.93 g, 1.85 g , (1 L) . 1 mL 1 mg , , . d) 1 mL 1.0 g, 2.0 g, 5.0 g, 10.0 g , , . 4.3.2 4.3.1 , KS M 0016 KS M 0028 . 4.3.3 2 g 0.1 mg (250 mL) , (1: 1) 20 mL . (100 mL) . , 4.3.2 . (%)4101001WDKS M 1123:2008 4 D : (g) W : (g) 4.3.4 (Pb) 4.3.3 4.3.2 (Pb) . 4.3.5 (Cd) 4.3.3 4.3.2 (Cd) . 4.3.6 (
6、Fe) 4.3.3 4.3.2 (Fe) . 4.3.7 (Cu) 4.3.3 4.3.2 (Cu) . 4.4 (Hg) 4.4.1 a) b) c) 1.2 g 20 mL 20 % 20 mL . . 4.4.2 10 g 15 g 5 g 50 mL . 100 mL 50 mL . 1 mL . 0.002 % . 15 g , 5 g 50 mL (0.1 mg/mL) 2 mL 1 mL . . KS M 1123:2008 5 : mm 1 200 1350 mL 65 14/23 34/35500 mL 200 200 300 14/23150 250 mL250 mL 6 () 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS M 1123:2008KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Zinc cyanide ICS 71.060.00