1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2003 5 31 KS D 1812 KS D 1812: 2003(2013 )D 1812: 2003 ( ) ( ) ( ) : : 1963 12 28 : 2003 5 31 : 2013 10 31 : 2013 0584 : ( 02 509 7249) . 7 5 , . C 2512: 2002 KS D 1812:2003 (2013 ) Determination of tungsten in iron and steel 1. . 2. . . KS D 1801 KS D 1807
2、 KS D 1809 KS D 1817 KS M 0012 KS M 8001 3. 3 . a) 0.3 % . b) 0.5 % . c) 0.5 % . 3.1 3.1.1 , , , . 3.1.2 a) (1 5) b) (1 50) c) d) e) (1 99) f) ( ) g) FeSO4 (NH4)2SO4 6H2O 100 g (1 1) 100 mL 1 L . h) 12.5 g (1 1) 100 mL . i) 30 mL 1 L . j) (2 %) k) (2 %) 25 50 mL (1 99) 1 L . . 3.1.3 a) (1) (300 mL)
3、, (1 5) 40 mL (2) 5 mLD 1812: 2003 2 , , . b) 50 mL , (1 50) , 100 mL 25 , 5 10 mL . c) 10 10 mL . 0.01 g 5 mL , , . , 10 (5 B ) . d) , , (3) 750 800 . e) 5 mL (5 B) , (1 99) , . f) (1 1) 5 mL 25 mL . g) 1 2mL 80 90 , (5 B) . h) , 750 800 (3), . SA 79.30W =(%) A: (g) S: (g) (1) , 1 . 1 (%) (g) 1 2 1
4、 1 (2) (1 5) 50 mL (60 %) 30 mL , . 100 mL (1 50) . 30 mL , c) . , (1 50) . 500 , 10 ( 1: 1) . (1 1) . b) . (3) . 3.2 3.2.1 , . , . D 1812: 2003 3 . 3.2.2 a) (1 1) b) c) (1 1) d) e) (12.5 %) (C19H22N2O) 12.5 g (1 1) 100 mL . f) 30 mL 1 L . g) ( ) 3.2.3 a) (4) (300 mL) (5) 50 80 mL . 5 10 mL 15 mL .
5、10 mL (6) , 10 mL 100 mL . b) 5 mL 90 30 60 (7). (5 C 6 ) , . (8) 750 800 . c) 2 3 3 5mL , 750 800 (9). . d) 10 ( 1 3 g) . 10 mL . (5 A) , (200 mL) (10). , 750 800 . , (11). SWW 79.30)W -= 21(%) W1: (g) W2: (g) S: (g) (4) , 2 . 2 (%) (g) 0.5 1 5.0 1 10 2.0 10 1.0 (5) 20 30 mL ( , , .) , 15 mL 1 g 7
6、mL . 1 3 mL D 1812: 2003 4 , 5 . 200 mL 3.2.3 b) . (6) , 5 % (1 10) 5 mL , 5 mL . (7) , . (8) (6 ) . (9) 750 800 ( ) 4 g . 20 mL . (500 mL) 200 mL 25 mL 1 4 . (6 ) , 5 6 . (500 mL) , (0.1 %) 1 2 , , 100 mL 1 mL . B (1 %) 20 mL 1 2 . , (6 ) . . 750 800 , 3.2.3 d) . . - 10 g 20 g (300 mL) 2 mL 250 mL
7、. . 10 g 20 g (100 mL) 4 mL . ( ) 10 g , 1 L . . B (1 %) - B 2 g 200 mL . B - B 10 mL 1 L , 3 mL . . (10) , , 3.2.3 d) 70 mL . (100mL) , , , . a) (200 mL) , 2 mL , 60 mL . (1 1) 0.15 mol/L KS D 1807 3.2.3 d) 3 mL . , . b) (200 mL) , D 1812: 2003 5 , 10 mL 1 . 15 mL . (50 %) 10 mL (50 %) . 10 mL (200
8、 mL) , 80 mL KS D 1809 3.2.4 b) . c) (200 mL) , 15 20 mL , , 2 3 . KS D 1817 3.2.4 a) . (11) , . ( ) SWWWWW 79.30%W 54321 +-=)( W1: (g) W2: (g) W3: (g) (g)1.462 W4: (g) (g)1.500 W5: (g) (g)1.785 S: (g) 3.3 3.3.1 , , , , , 500 nm . 3.3.2 a) b) (1 1) c) (1 3) d) (15 %) e) (3 %) f) (1 %) g) (45 %) (SnC
9、l22H2O) 45 g (1 1) 40 mL , 100 mL . h) 10 g 200 mL , 1 . . i) (0.1 mg W/mL) KS M 8001 . 3.3.3 KS M 00l2 2. . 3.3.4 a) (12) (300 mL) , (1 1) 20 mL 4 mL . b) (15 %) 10 mL , D 1812: 2003 6 , (13) (3 %) . . c) , 15A 20 , (14). d) , , 10 mL 1 mL , 10 (15). e) 1 2 , (50mL) . 15 mL 2 , . f) , 500 nm , (16)
10、 , . 100(%) -= S BAW A: (g) B: (g) S: (g) (12) 3 . 3 (%) (g) 0.3 0.1 0.1 0.1 0.01 0.5 0.01 1.0 40 mL, 3 mL , . , (5 B) (1 50) . . , 1 g . 3.2.3 c) . (13) . (14) 4 mg, 0.5 mg . (15) , . , (5 B) . (1 20) (5 B) . 2 3 10 mL, 1 mL , 3.2.3 e) . (16) 1.0, 2.0, 3.0, 4.0, 5.0 mL 5 (300 mL) , 3.2.3 d) . D 181
11、2: 2003 7 2003 6 24 135 513 701 7 (02)6009 4567 (02)6009 4887 8 http: /standard.ksa.or.kr 607 822 1 11( 10 ) (051)557 1239 702 012 2 1741( 3 ) (053)384 1562 4 402 714 989 1( 11 ) (032)420 0120 3 442 270 111 8( 9 ) (031)259 7000 9 200 041 1 9( 4 ) (033)252 9423, 254 9423 361 802 1508 1( 6 ) (043)236 2451 3 305 343 23 14( 5 ) (042)864 2301 3 561 200 1 337 2( 7 ) (063)214 2235 7 506 301 621 15( 5 ) (062)953 1435 7 641 740