1、 KS I ISO 5663 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS KS I ISO 5663 :2007 (2012 ) 2007 6 29 http:/www.kats.go.krKS I ISO 5663:2007 : ( ) ( ) ( ) : (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 5663:2007 ii 1 1
2、 2 1 3 .1 4 .1 5 .2 5.1 .2 5.2 .2 5.3 .2 5.4 .2 5.5 .3 5.6 .3 5.7 / .3 5.8 3 5.9 .3 6 .3 6.1 .3 6.2 4 7 4 8 .4 8.1 4 8.2 4 8.3 .4 9 5 9.1 5 9.2 .5 10 .6 11 6 11.1 6 11.2 6 12 7 i KS I ISO 5663:2007 ii 1984 1 ISO 5663 Water qualityDetermination of Kjeldahl nitrogen Method after mineralization with se
3、lenuium . KS I ISO 5663:2007 (2012 ) Water quality Determination of Kjeldahl nitrogen Method after mineralization with selenuium 1 . 3 , , , , , , , , . , . , . ( N ) 10 mg . 10 mL , N 1 000 mg/L . 100 mL , ( 4) N 1 mg/L. 100 mL , 0.02 mol/L 1.0 mL N 2.8 mg/L . 2 . . ( ) . KS M ISO 71501, 1: 3 . 3.1
4、 , . 4 , . KS I ISO 5663:2007 1 ) , . , / . . , 655 nm (11. ). 5 5.1 . 5.1 5.1.1 ( ) , . 10 g 1 L . 5.1.2 (5.3) (0.100.01) mL (1 00010) mL , . 50 mL . . ( ) 10 g 1 L . 5.2 1.18 g/mL 5.3 1.84 g/mL . , . 5.4 500 g/L . 1) . . . 11.2 .2 KS I ISO 5663:2007 (50020) g 800 mL , 1 L . 5.5 c(HCl) 0.10 mol/L ,
5、 5.2 . , . 5.6 c(HCl) 0.02 mol/L , 5.2 5.5 . , . 5.7 / 5.7.1 800 mL (0.5 0.1) g , 1 L . 5.7.2 800 mL (1.5 0.1) g , 1 L . 5.7.3 (H3BO3) (201) g , . 5.7.1 (100.5) mL 5.7.2 (2.00.1) mL , 1 L . 5.8 , . 11.2 . (1 00020) g (10.00.2) g 5.9 6 . 6.1 . , 500 mL . 6.2 . 3 KS I ISO 5663:2007 6.2 . (6.1) , . . .
6、 5.1 350 mL . (5.9) , 100 mL . . 7 , . 2 5 . , (5.3) pH 2 . 8 8.1 , 1 . 1 N(mg/L) * (mL) 10 1020 2050 50100 250 100 50 25 * 5.6 0.02 mol/L 8.2 (5.1) 250 mL , 8.3 . (5.6) . 8.3 . . . (6.1) (8.1) , (5.3) 10 mL 4 KS I ISO 5663:2007 (5.00.5) g . . , . , . , 60 ( 1 ) . (5.7) (505) mL . . (5.9) (5.1) (250
7、50) mL . (5.4) 50 mL , ( 2 ). 10 mL/min . 200 mL . (5.6) 0.02 mol/L , ( 3 ). 1 . . 2 . . 3 (5.5) 0.1 mol/L . 9 9.1 ( N ) . 000 1 01 . 14 (mg/L) 0 2 1 N c V V V V 0 : (mL)(8.1 ) V 1 : (mL)(8.3 ) V 2 : (mL)(8.2 ) c: (mol/L) 14.01: N (mg/L) c N ( mol/L) . N c N N 71.4 . 9.2 2 . 5 KS I ISO 5663:2007 2 a
8、 N (mg/L) (mL) b(mg/L) 2 50 150 79 c16 c62 c500 100 100 50 200 100 0.027 0.31 2.69 0.68 0.19 0.48 19 19 19 19 15 15 a b0.1 mol/L . , N 2 mg/L 0.02 mol/L . c 10 ( ) . ( ) , . ( ) . , . ( ) , . , . 8. . 11 11.1 655 nm , . , (5.1) (5010) mL . 1 g/L 4 - 2 . (5.4) . (5.3) . (200 mL) , (5.1) 200 mL . (KS
9、M ISO 71501 ) . . . ( N )(mg/L), ( N )(mg/L) 200/V 0 . V 0 8.1 (mL). 11.2 “ ” . , (pH 2) . (II) , 6 KS I ISO 5663:2007 7 . 12 . a) b) c) d) e) f) 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS I ISO 5663 :2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Water quality Determination of Kjeldahl nitrogenMethod after mineralization with selenuium ICS 13.060.50 Korean Agency for Technology and Standards http:/www.kats.go.kr