1、 2003 5 31 D 1807 2003 1963 12 28 2003 5 31 03 569 ( ) ( 02 509 7252) . 7 5 , . ICS 77.040.40 KS D 1807 2003 Determination or chromium in iron and steel . KS D 1801 KS M 7602 KS M 8001 2 . 0.1 % . 0.5 % . , . . . KS M 8001 . KS M 800l . ( 1 ) (500 mL) , 40 mL 5 mL . 3 mL ( 2 ). 150 mL , 10 mL , ( 3
2、) 20 mL 10 ( 4 ) . 5mL ( 5 ) 5 mL , 3 D 1807 2003 . 300 mL , , 10 mL ( 6 ) ( 7 ). , . S B A 3 0.173 Cr = A (mL) B (mL) S (g) ( 1 ) . % g 1 2.0 1 3 1.0 3 10 0.50 10 0.20 . (500 mL) 40 mL 5 mL , 3 mL , . . 30 mL , 16 mL 5 mL , . ( 2 ) KS M 7602 5 B (1 50) , (500 mL) . , 10 . (5 B), , . , , (5 B) . ( 3
3、 ) . (300 mL) , 40 mL 10 mL . 200 5 . 30 mL 1 , (1 3) 20 mL 10 mL 150 mL . , (0.2 %) . ( 4 ) (2 %) 2 D 1807 2003 . ( 5 ) (1 3) 2 3 mL . 3 . ( 6 ) 1 . ( 7 ) (10 %) 1.5 . , , . 540 nm . (C 13 H 14 N 4 O) 0.2 g 100 mL . . 1 g (300 mL) 20 mL , 3 mL 10 mL . 5 mL 10 mL . 50 mL 100 mL , (250 mL) . KS M 800
4、1 . ( 8 ) (300 mL) , 20 mL ( 9 ). 60 mL 2 mL . 1 mL 2 3 . 50 mL 10 mL , 1 . (250 mL) . 50.0 mL (l00 mL) , 3.0 mL 1 , 5 mL . 540 nm , ( 10 ) , . 100 = B S A Cr A (g) B 3 D 1807 2003 S (g) ( 8 ) . % g 0.2 0.2 0.2 0.5 0.1 ( 9 ) (5 A) . (1 100) . (300 mL) , 60 mL . ( 10 ) 5 (300 mL) , 2, 5, 10, 15, 20 m
5、L 60 mL , . g mL mL 0.20 50 20 0.10 25 10 4 2003 6 25 135 513 701 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 9
6、423 361 802 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 7 4( 501 ) (055)266 4744 6 683 804 758 2( 2 ) (052)289 6601 3 425 852 773 9( 4 ) (031)492 5780, 8451 2 730 350 92 30( 8 ) (054)473 6954 480 848 2 487 6( 3 ) (031)829 8182 4 KSKSKS SKSKS KSKS SKS KSKS SKSKS KSKSKS 2003 ICS 77.040.40
