1、 KS I ISO 73931 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 1: n,n1,4 KS I ISO 73931 ：2007 (2012 ) 2007 6 29 http:/www.kats.go.krKS I ISO 73931：2007 : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： : 1997 6 3 : 2007 6 29 ：2012 12 27 ： 20120787 ： ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS I ISO 739
2、31：2007 . iii 1 1 2 1 3 .1 4 .2 4.1 .2 4.2 .2 5 .2 5.1 .2 5.2 2 5.3 n,n1,4(DPD)NH C H N(C H ) H SO 2 6 4 2 5 2 2 4 .3 5.4 3 5.5 (II) .3 5.6 (II) .4 5.7 (NaAsO ) 2 g/L (CH CSNH ) 2.5 g/L 2 3 2 .4 5.8 4 5.9 4 5.10 .4 6 .4 7 4 7.1 4 7.2 (test portions) .4 7.3 .5 7.4 .5 8 5 9 5 9.1 5 9.2 .6 9.3 .6 10 .7
3、 10.1 7 10.2 .7 11 .7 i KS I ISO 73931：2007 A , .8 A.1 8 A.2 .8 A.3 .8 A.4 .8 A.5 8 A.6 9 B .10 11 ii KS I ISO 73931：2007 iii 1985 1 ISO 73931, Water qualityDetermination of free chlorine and total chlorinePart 1：Titrimetric method using n,n-diethyl-1,4-phenylenediamine . KS I ISO 73931：2007 (2012 )
4、 1：n,n1,4 water qualityDetermination of free chlorine and total chlorine Part 1 ：Titrimetric method using n,n-diethyl-1,4-phenylenediamine 1 . . 0.000 4 mmol/L0.07 mmol/L(0.03 mg/L5 mg/L) . 0.07 mmol/L KS M ISO 73933 . A , . . 8. 10. . 2 . . KS M ISO 73932, 2：n,n1,4 KS M ISO 73933, 3： 3 , 1 . 3.1 ,
5、3.2 3.3 , 2 3.4 KS I ISO 73931：2007 (NH 2 Cl), (NHCl 2 ), (NCl 3 ) 1 , , , , 4 4.1 n,n1,4(DPD) , pH 6.26.5 . (II) . 4.2 DPD 4.1 . 5 5.1 . 5.1 . 2 (250 mL)(6.) . a) 100 mL 1 g (5.4) 1 , 5 mL ( 5.2) 5.0 mL DPD(5.3) . b) 100 mL (5.8) 2 2 , 5.0 mL (5.2) 5 mL DPD (5.3) . , . . . B . 5.2 pH 6.5 (5.1) . 24
6、 g (Na 2 HPO 4 ) 60.5 g 12 (Na 2 HPO 4 12H 2 O) 46 g (KH 2 PO 4 ). 100 mL 8 g/L 2 KS I ISO 73931：2007 (2)(EDTA 2 , C 10 H 14 N 2 O 8 Na 2 2H 2 O) ( 0.8 g ) . 0.020 g (HgCl 2 ) . 1 000 mL . , ISO 5790( ) 5.3 n,n1,4(DPD)NH 2 C 6 H 4 N(C 2 H 5 ) 2 H 2 SO 4 1.1 g/L 250 mL (5.1), 2 mL ( 1.84 g/mL) 25 mL
7、8 g/L EDTA2Na(2)( 0.2 g ) . 1.1 g DPD 1.5 g 5 1 000 mL . . 1 . 5.4 5.2, 5.3 5.4 . 5.5 (II) c(NH 4 ) 2 Fe(SO 4 ) 2 6H 2 O0.056 moL/L5.5.1 22 g (II)(6)( ) 1 (1 000 mL) 5 mL ( 1.84 g/mL) 250 mL . . 5.5.2 . 5.5.2 (250 mL) 50.0 mL (5.5.1), 50 mL (5.1), 5 mL ( 1.71 g/mL) 4 (5.9) . . . (Cl 2 mmol/L) . 1 2
8、2 1 V c V c c 2 ： (5.10) c(1/6K 2 Cr 2 O 7 )100 mmol/L V 1 ：(II) (5.5) (mL), 50 mL V 2 ： (5.10) (mL) 3 KS I ISO 73931：2007 V 2 22 mL (5.5.1 ) . 5.6 (II) c(NH 4 ) 2 Fe(SO 4 ) 2 6H 2 O2.8 mmol/L 50.0 mL 1 (1 000 mL) . . . c 3 (Cl 2 mmol/L) . 20 1 3 c c c 1 5.5.2 . 5.7 (NaAsO 2 ) 2 g/L (CH 3 CSNH 2 ) 2
9、.5 g/L 5.8 (Cl 2 ) 0.1 g/L . 5.9 3 g/L 0.3 g (C 6 H 5 NHC 6 H 4 SO 3 ) 2 Ba 100 mL . 5.10 c(1/6K 2 Cr 2 O 7 )100 mmol/L 4.904 g mg . 1 (1 000 mL) . 6 . a) 5 mL 0.02 mL (5.8) 1 . , . 7 7.1 . , . 7.2 (test portions) 4 KS I ISO 73931：2007 100.0 mL 2 . 70 mol/L(5 mg/L) (5.1) 100.0 mL . 7.3 5.0 mL (5.2),
10、 5.0 mL DPD (5.3) (7.2) (250 mL) . (II) (5.6) . V 3 (mL) . , (5.2) pH 6.26.5 . . 7.4 (250 mL) . 5.0 mL (5.2), 5.0 mL DPD (5.3), (7.2) 1 g (5.4) 2 , (II) (5.6) . 2 . V 4 (mL) . , (5.2) pH 6.26.5 . . 8 (5.7) (7.2) . (250 mL) , 1 mL (5.7) . 5.0 mL 5.0 mL DPD . (II) . V 5 (mL) . 9 9.1 9.1.1 c(Cl 2 )(mmo
11、l/L) . 0 5 3 3 2 ) ( ) (Cl V V V c c c 3 ：(II) (Cl 2 mmol/L ) V 0 ： (mL) V 3 ： (II) (mL) V 5 ： 8. (II) (mL)( V 5 0 mL) 5 KS I ISO 73931：2007 9.1.2 c(Cl 2 )(mmol/L) . 0 5 4 3 2 ) ( ) (Cl V V V c c c 3 , V 0 V 5 ：9.1.1 . V 4 ： (II) (mL) 9.2 (mol/L) 70.91 g/L . 9.3 , . (USAEPA EnvironmentaL Monitoring
12、and Support Laboratory)1 . c(Cl 2 ) 4.79 mol/L, 9.17 mol/L 48.6 mol/L (Cl 2 ) 0.34 mg/L, 0.65 mg/L 3.45 mg/L , 5.6 %, 0.5 %, 0.5 %. c(Cl 2 )13.8 mol/L (Cl 2 )0.98 mg/L 1.2 %. c(Cl 2 ) 11.1 mol/L (Cl 2 ) 0.79 mg/L 3.3 % . (British Department of the Environment) 2 c(Cl 2 )14 mol/L 71 mol/L (Cl 2 ) 1.0
13、 mg/L 5.0 mg/L 1.4 % 0.88 % . , . . (EMSL) , . 2 2 . 6 KS I ISO 73931：2007 2 c(Cl 2 ) mol/L (Cl 2 ) (mg/L) a () mol/L (mg/L) mol/L (mg/L) 7 11.3 15.5 18.2 (0.5) (0.80) (1.10) (1.29) A B A B C A B C A B 6 7 10 14 6 10 14 6 6 7 6.2 6.8 10.9 11.1 11.6 15.5 16.2 16.5 18.6 19.9 (0.44) (0.48) (0.77) (0.79
14、) (0.82) (1.10) (1.15) (1.17) (1.32) (1.41) 1.3 1.8 1.1 4.1 1.3 2.0 5.5 1.1 1.3 5.4 (0.09) (0.13) (0.08) (0.29) (0.09) (0.14) (0.39) (0.08) (0.09) (0.38) aA ： B：DPD C：DPD 10 10.1 . . 2,3,410.2 DPD . . , , , , , , , , , (III) . (II) ( 8 mg/L) (III) ( 20 mg/L ) , 5.2 5.3 EDTA 2Na . . 11 . a) b) c) d)
15、7 KS I ISO 73931：2007 A , A.1 , . . A.2 2 . a) DPD b) DPD , , DPD 2 . . A.3 5. . a) 5 g/L . A.4 6. . A.5 A.5.1 7.1 . A.5.2 7.2 . A.5.3 (250 mL) . 5.0 mL , 5.0 mL DPD , 8 KS I ISO 73931：2007 ( 0.1 mL) (3. ) ( 0.5 mg) . (II) . V 6 (mL) . A.5.4 , 1 1 / 2 (250 mL) ( 0.1 mL) (A.3 ), ( 0.5 mg) . 1 5.0 mL
16、5.0 mL DPD (250 mL) . (II) . V 7 (mL) . A.6 A.6.1 A.6.1.1 c(Cl 2 )(mmol/L) . 0 3 6 3 2 ) ( ) (Cl V V V c c c 3 , V 0 V 3 ： 9. . V 6 ： (II)( 5.6) (mL) A.6.1.2 c(Cl 2 )(mmol/L) . 0 6 7 4 3 2 ) 2 ( ) (Cl V V V V c c c 3 , V 0 V 4 ： 9. . V 6 ：A.6.1.1 . V 7 ： (II)( 5.6) (mL) A.6.1.3 c(Cl 2 )(mmol/L) . 0
17、6 7 3 2 ) ( 2 ) (Cl V V V c c c 3 , V 0 ： 9. . V 6 ：A.6.1.1 . V 7 ：A.6.1.2 . A.6.2 (mol/L) 70.91 g/L . 9 KS I ISO 73931：2007 B , 0.14 mmol/L(10 mg/L) 16 . . 5.1 . 10 KS I ISO 73931：2007 11 1 Bender, D.F. Comparison of methods for the determination of total available residual chlorine in various samp
18、le matrices. Report No. EPA600/478019. Cincinnati, Ohio 45268, USA：US Environmental Protection Agency, 1978 2 Doe. Chemical Disinfecting Agents in Waters, and Effluents, and Chlorine Demand, Methods for the Examination of Waters and Associated Materials. London, UK：HMSO, 1980 3 Palin A.T. Methods fo
19、r the determination in water of free and combined available chlorine, chlorine, dioxide and chlorite, bromine, iodine and ozone, using diethyl-p-phenylenediamine. J. Inst. Water Eng. 21. 1967：537 4 Palin A.T. Analytical control of water disinfection with special reference to differential DPD methods
20、 for chlorine, chlorine, dioxide, bromine, iodine and ozone. J. Inst. Water Eng. 28. 1974：139 5 Studies WS007 and WS008, Cincinnati, Ohio 45268, USA：Quality Assurance Branch, Environmental Monitoring and Support Laboratory. Office of Research and Development, US Environmental Protection Agency, 1980
21、 6 Palin A.T. New correction procedures for chromate interference on the DPD methods for residual, free and combined chorine. J. Inst. Water Eng. Sci., 36. 1982：351 1：n,n1,4 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS I ISO 73931 ：2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Water quality Determination of free chlorine and total chlorine Part 1 ：Titrimetric method using n,n-diethyl-1,4-phenylenediamine ICS 13.060.50 Korean Agency for Technology and Standards http:/www.kats.go.kr
