KS I ISO 18412-2006 Water quality－Determination of chromium(VI)－Photometric method for weakly contaminated water《水质 铬(VI)测定 轻微污染水用光度测量法》.pdf

1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 10 31 http:/www.kats.go.krKS I ISO 184126 KS I ISO 18412： 2006 (2011 )I ISO 18412： 2006 : ( ) ( ) KIST ( ) : (http:/www.standard.go.kr) ： ：2006 10 31 ：2011 12 26 2011-0623 ： ： ( 02- 509-7270) (http:/www.kats.go.kr). 10 5 , . ICS 13.060.50 KS I ISO 6 18

2、412： 2006(2011 ) Water quality Determination of chromium(VI) Photometric method for weakly contaminated water 2005 1 ISO 18412 Water quality Determination of chromium(VI) Photometric method for weakly contaminated water . . . . . . 1. 250 g/L 6 (Cr(VI) . . . . . 6 “KS M ISO 11083 (VI) ( )” . 2. . ,

3、 ( .) . KS M ISO 3696 KS M ISO 5667 1 1： KS M ISO 5667 2 2： KS M ISO 8466 1 ( ) ISO 5667 3 Water quality sampling Part 3： Guidance on the preservation and handling of samples ISO 8466 2 Water quality Calibration and evaluation of analytical methods and estimation of performance characteristics Part

4、 2： Calibration strategy for non-linear second-order calibration functions I ISO 18412： 2006 2 3. 6 . 0.2 mg/L . , , 1 . 1 mg/L 0.6 0.4 0.2 0.1 4. 6 1,5- 1,5- . 6 . 540 nm . 5. . 5.1 KS M ISO 3696 1 , 5.2 (H2SO4) 1.81 g/mL 5.3 (H3PO4) 1.71 g/mL 5.4 / 500 mL 200 mL (5.1) . 27 mL (5.2) 33 mL (5.3) (5.

5、1) 500 mL . 5.5 () C3H6O 5.6 DPC(diphenylcarbazide) (5.5) 1 % 1 g 1,5- (C13H14N4O) 100 mL (5.5) . ( 2 8 ) . 1 . 5.7 (stock solution) 6 = 1 g/L 1 000 mL (5.1) 3.735 g K2CrO4 , 1 000 mL (5.1) . 1 . 5.8 I 6 = 100 mg/L 50 mL (stock solution)(5.7) 500 mL 500 mL (5.1) . . 5.9 II 6 = 4 mg/L 20 mL (I)(5.8)

6、500 mL , 500 mL (5.1) . . 6. . I ISO 18412： 2006 3 6.1 50 mL, 500 mL 1 000 mL . 6.2 25 mL, 40 mL 50 mL . 6.3 500 L . 6.4 50 mm 7. KS M ISO 5667 1, KS M ISO 5667 2 ISO 5667 3 . , 4 . 50 g/L 6 . 50 g/L . 8. 8.1 40 mL 50 mL . 4 mL (5.4) , , 500 L DPC(diphenylcarbazide) (5.6) , . 50 mL(5.1) ( A1, 9. ).

7、40 mL 40 mL (5.1) , ( A2, 9. ). A2 0.005 , ( ). , 40 mL 50 mL , 4 mL , DPC(diphenylcarbazide) , 50 mL (5.1) ( A3, 9. ). 5 20 (5.1) 540 nm (6.4) . , . 8.2 5 g/L50 g/L , , . 5 50 mL 50 L 500 L( ) II(5.9) . 40 mL (5.1) . 4 mL (5.4) , . 500 L DPC(diphenylcarbazide) (5.6) , . (5.1) 50 mL . 520 (5.1) 540

8、nm (6.4) . KS M ISO 8466 1 . , . , ISO 8466 2( 2 ) . 9. (1) g/L 6 . I ISO 18412： 2006 4 bAAA321= (1) ： 6 (g/L) A1： 540 nm A2： 540 nm A3： 540 nm DPC(diphenylcarbazide) b： (L/g) 40 mL . . 10. . 1. 6 = 5 g/L 2. 6 = 12 g/L 11. . a) (KS M ISO 18412) b) c) 10. d) , e) I ISO 18412： 2006 5 A() 2002 5 23 . A

9、1 . A.1 l n APn % truex g/L x g/L % Rs g/L CVR% rs g/L CVr% A 19 34 2.9 8.0 8.5 106.5 0.77 9.0 0.47 5.5 B 20 35 5.4 44.0 44.1 100.3 1.43 3.2 0.56 1.3 C 19 34 0 24.0 23.6 98.5 1.51 6.4 1.23 5.2 l n APn % truex ( ) x rs CVr Rs CVR ： A B C 6 6 6 6 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ KSKSKSSKSKS KSKS SKS KSKS SKSKS KSKSKSKS I ISO 18412： 2006 Water qualityDetermination of chromium(VI)Photometric method for weakly contaminated waterICS 13.060.50 Korean Agency for Technology and Standards http:/www.kats.go.kr