1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2003 5 31 KS D 1811 KS D 1811: 2003(2013 )D 1811: 2003 ( ) ( ) ( ) : : 1964 12 30 : 2003 5 31 : 2013 10 31 : 2013 0584 : ( 02 509 7249) . 7 5 , . ICS 77.080.20; 71.040.40 KS D 1811:2003 (2013 ) Methods for determination of nitrogen in iron and steel 1. . 2.
2、 . . KS D 1801 KS M 0014 KS M 0015 KS M 8001 KS M 8005 3. 4 . a) . b) 0.02 % . c) 0.05 % . d) . 3.1 3.1.1 . . . , . 3.1.2 (1) a) (1 1) b) c) (1 4) d) (1 5) e) (0.5 %) f) (0.1 %) g) (50 %) h) i) j) (CuSO45H2O) k) (10 %) l) A(3.466 g HOSO2NH2/L) KS M 8005 48 , 3.466 g (1 L) D 1811: 2003 2 . 1 mL 0.l m
3、g . m) B(0.693 2 g HOSO2NH2/L) A 5 . 48 0.693 2 g (1 L) . 1 mL 0.02 mg . n) 0.125 g 0.083 g (99.5 %) (99.5 %) 100 mL . (1) . 3.1.3 (2) KS M 0014 20 21 . (2) 2 3 . 3.1.4 (3) a) (4) (500 mL) (500 mL) (5) (1 1) (1 5)(6) 1 , . 1 % g (1 1) (1 5) mL 0.002 10.0 100 0.002 5.0 70 b) (7) (5 B C) , (300 mL) .
4、(500 mL) (500 mL) (500 mL) (8). c) (500 mL) (500 mL) (500 mL) 10 g, 1 g 20 mL . 1 . 100 mL . d) (b) (50 %) 55 mL(9) , (300 mL) 2 20 mL . b) c) (f) (b) , (f) , 250 mL . (a) (10) . 120 mL (c) , (c) (11). 2 % % 0.03 0.1 B(1L 0.693 2 g) 0.03 0.5 A(1L 3.466 g) e) d) 3 , 2 (12). D 1811: 2003 3 . f) e) . (
5、% ) = 100+W fVV )( 21 V1:: (mL) V2: (mL) f: 1 mL (g/mL) A 0.000 50 B 0.000 10 W: (g) (3) , . (4) 149 840 (100 20 ) . (5) (500 mL) , , . , (500 mL) . (6) (4) (500 mL) . (1 1) 100 mL (13) 10 mL . (7) 3.1.4 b) (8). (7) . . 3.1.4 a) (6) (10 %) 2 mL (1 4) 2 mL(14) (15). (300 mL) . (500 mL) (500 mL) (500
6、mL) (8). (8) 3.1.4 c) . (9) 3.1.4 c) (50 %) 80 mL . (10) (a) KS M 0014 21 (a) (e) . (11) KS M 0014 21 (a) (e) , . KS M 0014 20 (g) (b) (g) . (a) . (12) 0.04 mg , 0.1 D 1811: 2003 4 mg . 2 . (13) . (14) (1 5) (1 4) 2 mL . (15) 2 000 3 000 rpm . 3.2 - 3.2.1 . . , T , 540 nm . 3.2.2 3.1.3 . , (100 mL)
7、. 3.2.3 (16) a) (1 1) b) 20 30 . . c) (1 5) d) (50 %) e) f) (21g/L) 197 mL (28g/L) 203 mL . pH 4.8 . g) T T(CH3C6H4SO2NClNa3H2O) 5 g 1 L . h) 1- -3- -5- C6H5NN:C(CH3)CH2CO 2.5 g 1 L . i) (l- -3- -5- ) (C20H18O2N4) 0.100 g (26.5g /L) 50 mL , 2 . . j) . , 20 g 300 400 mL 2 3 . k) (10 N/mL) 3.820 g , (
8、1 L) . 100 . (16) . 3.2.4 (17) a) (18) (300 mL) (300 mL) . (19) 3 . 1 g (10 mL) . (300 mL) 30 mL . b) a) (300 mL) (500mL) 10 g 20 mL . (20) D 1811: 2003 5 1 . , 100 mL a) (21). 3 % g (1 1) mL 0.002 4.0 50 0.002 0.02 2.0 30 c) (b) (50 %) 4 . (100 mL) 10 mL (c) . d) (f) (b) (f) . (b) 250 mL . e) (a) ,
9、 90 mL (c) , (c) . 4 g b) (50%) mL 4.0 120 60 2.0 110 50 f) (100 mL) . 5 , (100 mL) . 50 mL , 5 mL T 2 mL 20 25 5 . 10 mL 5 . 10 mL 6 10 . 5 % mL 0.005 50 0.005 0.01 25 0.01 10 g) f) 540 nm , (22) , . (%) 100BWA A: (g) W: (g) B: D 1811: 2003 6 (17) 3.1 (3) . (18) 3.1 (4) . (19) (1 1) (1 5) . (20) .
10、(21) b) . (22) (23) (200 mL) , (1 1)(24) 30 mL 0 10 mL . (b) (50 %) 55 mL . (l00 mL) 10 mL (c) . 3.2.4 d) g) . (23) . 3 5 3 . 3.2.4 a) f) , . (24) (19) (1 5) . 3.3 - 3.3.1 . , , , . 640 nm . 3.3.2 3.1.3 . , (100 mL) . 3.3.3 (25) a) (1 1) b) 3.2.3 b) . c) (1 5) d) 0.02 mol/L 30 mL 700 mL , 1 L 0.5 mo
11、l/L 0.05 mol/L 40 mL 1 L . e) A(50 %) f) B(0.8 %) g) h) (25%) 10mL 80mL 5 g 100 mL . . i) (12 ) 36g , 1 L . j) Na2Fe(CH)5NO2H2O 10g 1 L . 25 mL 1 L . k) 0.3 % . 10 3 . 0.1 mol/L . l) 3.2.3 j) . D 1811: 2003 7 m) (10 N/mL) 3.2.3 k) . n) 0.1 g (99.5 %) 100 mL 1 L . (25) 3.2.3 (16) . 3.3.4 (26) a) (27) 6 (300 mL) . (28) 30 mL . 1 g (10 mL) , . (300 mL) 30 mL . b) a) (300 mL) (500 mL) 10g 20 mL . (29) , 1 . 100 mL , a) (30). 6 % g 0.002 2.0 0.002 0.05 1.0 c) (b) A (50 %) 110 mL(31) . (100 mL) 0.02 mol/L 5 mL , (c) . d) (f) (b) , (f) . (b) 250 mL