1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS I ISO 9174 ( ) KS I ISO 9174:2008 2008 11 10 http:/www.kats.go.krKS I ISO 9174:2008 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :1998 3 26 :2008 11 10 2008-0751 : : ( 02-509-7266) (http:/www.kats.go.kr). 10 5 , . KS I ISO 9174:2008 ( ) Water quality Dete
2、rmination of total chromium Atomic absorption spectrometric methods 1998 2 ISO 9174, Water quality Determination of chromium Atomic absorption spectrometric methods , . 1 . . 3.: 4.: 3. 0.520 mg/L . 0.5 mg/L . 0.1 mg/L 4. . 4. 5100 g/L 20 L . . 2 . . ( ) . KS M ISO 5667 2, 2: KS M ISO 5667 3, 3: 3 3
3、.1 KS I ISO 9174:2008 2 / . 357.9 nm . . 3.2 . . , , . 3.2.1 , HCl 1.18 g/mL 3.2.2 , HNO3 1.42 g/mL 3.2.3 , c(HNO3) = 1.5 mol/L 1 000 mL 500 mL (3.2.2) 100 mL . 3.2.4 , H2O230 %(m/m) 3.2.5 (LaCl3) 20 g 23.5 g (3.2.1) 200 mL 1 000 mL . La2O3 HCl . 3.2.6 3.2.6.1 , 1.000 g/L (K2Cr2O7) 2 (1052) . (2.825
4、0.001) g . (51) mL (3.2.2 ) 1 000 mL . 1 mL 1.00 mg . . 1 pH 12 . . 3.2.6.2 , 50 mg/L (50.000.01) mL (3.2.6.1) (1 000 mL) . (3.2.2) 1 mL . 1 . KS I ISO 9174:2008 3 3.3 3.3.1 / . . / , . 3.3.2 24 (3.2.3) . ( ), (3.2.3) . . 3.3.3 0.45 m . (3.2.3) (3.2 ) . 3.4 3.4.1 KS M ISO 5667 2 KS M ISO 5667 3 . A
5、. (3.2.3) . 3.4.2 (3.2.2) pH 12 . 90 mL (3.2.4) 1 mL (3.2.2) 2 mL . 50 mL . . , . . (3.2.2) 10 mL . (100 mL) . (3.2.5) 10 mL (100 mL) . 3.4.3 KS I ISO 9174:2008 4 , (3.3.3) (3.2.2) pH 12 . (3.2.5) 10 mL (100 mL) . 3.5 3.5.1 . 3.5.2 (3.2.6.2) 5 . 1.0 mL, 2.5 mL, 5.0 mL, 10.0 mL 20.0 mL (3.2.6.2) (100
6、 mL) . (3.2.2) 10 mL 2 mL (3.2.5) 10 mL . 0.50 mg/L, 1.25 mg/L, 2.50 mg/L, 5.00 mg/L 10.0 mg/L . . 3.5.3 / ( = 357.9 nm) . (3.5.2) . , . 0 . (3.5.2) 0 (3.5.1) . mg/L . 3.5.4 (3.4.2 3.4.3) . 0 . 3.6 (3.5.3) (3.5.4) (3.5.1) . (mg/L) . bVVAA=pWSOS)( : (mg/L) AS : KS I ISO 9174:2008 5 ASO : Vp : 3.4.2 3
7、.4.3 (mL) b : ( ) (L/mg) VW : 3.4.2 3.4.3 (mL) B.1 . 3.7 1 . 1984 . 1 mg/L mg/L 10 000 500 12 000 100 9 000 000 100 2 000 100 000 15 g/L 2 000 mS/m . . 3.8 . a) b) c) d) (3.6 ) e) 4 4.1 . , 357.9 nm . . 4.2 KS I ISO 9174:2008 6 . . , , . 4.2.1 , 0.5 mg/L (Cr) (3.2.6.2) (10.000.01) mL (1 000 mL) . (3
8、.2.2) 10 mL 1 000 mL . . 4.3 4.3.1 , , 4.3.2 (atomizer tube) . . Lvov . 4.3.3 . . 4.4 3.4 . . 4.5 4.5.1 , . 4.5.2 5 (4.2.1) . (4.5.1) 0 . . KS I ISO 9174:2008 7 . . . 525 g/L (4.2.1) 1.0 mL, 2.0 mL, 3.0 mL, 4.0 mL 5.0 mL (100 mL) (3.4.2 3.4.3 ) 10 mL 2 mL (3.2.2) . . 5.0 g/L, 10.0 g/L, 15.0 g/L, 20.
9、0 g/L 25.0 g/L . . 4.5.3 4.5.3.1 . (4.3.2) ( 1 ) ( 20 L) (4.5.2) . . (4.3.3) (4.5.1) (4.5.2) . ( ) 3.5.3 . 2 . 1 530 L . , . 2 . . 4.5.3.2 , . 4 10 mL (3.4.2 3.4.3) 5 mL . (3.2.2) 0.5 mL . 0 mL, 0.10 mL, 0.30 mL 0.60 mL (4.2.1) . . 4.5.3.1 . 4.6 4.6.1 (4.5.3.1), 3.6 ( ) . 4.6.2 (4.5.3.2), , . KS I I
10、SO 9174:2008 8 . 4.6.3 B.2 . 4.7 (3.7 ). 4.8 . a) b) c) d) (4.6 ) e) KS I ISO 9174:2008 9 A ( ) A.1 (3.4.1 ) , . , 24 (1052) . . . A.2 3.4.2 , . (100 mL) ( ). 200 kPa(120 ) . 1 g, . (3.2.2) 20 mL ( .) 120 (200 kPa) 30 . 100 mL . , . KS I ISO 9174:2008 10 B ( ) B.1 3. 1985 1 B.1 3. . B.1 3. l n xSx y
11、 srCVrsRCVR 11 43 15.0 14.64 97.5 0.084 0.6 0.798 5.5 14 56 2.0 2.06 103.0 0.053 2.6 0.218 10.6 l : n : ( ) xS : (mg/L) x : (mg/L) y : (%) sr : (mg/L) CVr : (%) sR : (mg/L) CVR : (%) . . 3.4.2 , . KS I ISO 9174:2008 11 B.2 4. 1985 1 B.2 4. . B.2 4. l n xSx y srCVrsRCVR 18 71 25.0 23.99 96.03 0.689 2
12、.96 3.586 14.9 18 72 10.0 10.94 109.4 0.690 6.2 4.045 37.0 l : n : ( ) xS : (mg/L) x : (mg/L) y : (%) sr : (mg/L) CVr : (%) sR : (mg/L) CVR : (%) . . . () 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS I ISO 9174:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Water qualityDetermination of total chromiumAtomic absorption spectrometric methods ICS 13.060.01