1、 KS D ISO 9441KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS PAR KS D ISO 9441 : 2002 (2007 ) 2002 9 30 http:/www.kats.go.kr : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： : 2002 9 30 : 2007 6 29 2007-0362 ： ( 02-509-72747) . (http:/www.kats.go.kr) 7 5 , . ICS 77.080.20 KS PAR D ISO 9441 : 2002 (2007 )Steel
2、Determination of niobium contentPAR spectrophotometric method 1988 1 ISO 9441 Steel Determination of niobium content PAR spectrophotometric method , . 1. PAR . 0.005 1.3%(m/m) . 2. . . ISO 377 Wrought steel Selection and preparation of samples and test pieces ISO 385 1 Laboratory glassware Burettes
3、Part 1: General requirements ISO 648 Laboratory glassware One-mark pipettes ISO 1042 Laboratory glassware One-mark volumetric flasks ISO 5725 Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests 3. . . pH 6.3 4-(2- )- (PAR)
4、 . 550nm . 4. , . 4.1 . 4.2 (KHSO4) 4.3 ( 1.19g/mL) 4.4 ( 1.19g/mL) 1+9 . 4.5 ( 1.84g/mL) 1+1 . 4.6 ( 1.84g/mL) 1+4 . 4.7 (300 g/L) D ISO 9441： 2002 24.8 (120g/L) . 4.9 (3g/L) . ( 1.19g/mL, 1+4 . ) 50mL 0.3g . 100mL . 4.10 pH 6.3 . 700mL (3 ) 350g . ( 1.05g/mL) 5.5mL 1 000mL . pH pH 6.3 . 4.11 (100g
5、/L) 4.12 C6H5AsO(OH)2(40g/L) 4.13 C6H5AsO(OH)2(0.5g/L) 4.14 () (EDTA Na2) (15g/L) ( ) (2 )(C10H14O8N2NA22H2O) 15g . 1 000mL . . 4.15 4-(2- )- (PAR)(C11H9N3O2) (0.6g/L) 4.16 (0.200g Nb/mL) ( )( 99.5%) 0.143g 0.0001g . (4.2) 3.5g . (4.11) 40mL . (4.11) 160mL . 500mL . 1mL Nb 0.200mg . 5. . ISO 385 1,
6、ISO 648 ISO 1042 A . 5.1 6. ISO 377 . 7. a) 4.12, 4.13 7.3.2 , . b) 7.3.2 . c) , . 7.1 1.0g(m) 1mg . 7.2 , (4.1) . 7.3 7.3.1 400mL (7.1) (4.3) 40mL . . (4.7) 5mL . 1 200mL (4.9) 5mL . 7.3.2 7.3.1 , (4.12) D ISO 9441 : 2002 3 25mL . 5 . 10 . . . (4.4) (4.13) . (4.13) . . 800C 15 . (4.5) . . 7.3.3 (4.
7、2) 2g . (4.11) 50mL 400mL . 50mL . (4.8) 25mL . pH (4.6) (4.8) pH 6.0 . 250mL . . 7.3.4 1 , 7.3.3 . 100mL . EDTA Na2 (4.14) 10mL, PAR (4.15) 10mL (4.10) 10mL . 20 15 . . 30 . 1 % m/m mL 0.26 0.26 0.65 0.65 1.3 25.0 10.0 5.0 7.3.5 0 (5.1) 550nm . 0.06%(m/m) 4cm , 0.06%(m/m) 1cm . 7.4 7.4.1 9 400mL (4
8、.1) 1.00.05g . 2 (4.16) . 7.3.2 7.3.4 . 7.3.4 25.0mL . D ISO 9441： 2002 4 2 (4.16) g/mL cm 0 1.0 2.0 3.0 5.0 7.0 9.0 11.0 13.0 0 0.2 0.4 0.6 1.0 1.4 1.8 2.2 2.6 1 4 4 4 1 4 1 1 1 1 1 7.4.2 0 (5.1) , 550nm . 2 . . 7.4.3 . 8. 8.1 7.4.3 7.3.5 . (Nb) %, (m/m) . 100101)(161mVVVtoobNbN 100100250101)(161=m
9、VobNbN mVobNbN111025)( = m : (7.1) (g) V0: (7.3.3 )(mL) V1: ( 1 )(mL) Vt: (7.3.4)(mL) Nb0: (7.2 )(g/mL) Nb1: (7.3.3 )( g/mL) 8.2 7 15 . 3 . A . D ISO 9441 : 2002 5 ISO 5725 . 3 (r) (R Rw) . B . 3 % m/m r Rw R 0.005 0.01 0.02 0.05 0.1 0.2 0.5 1.0 1.3 0.0012 0.0018 0.0027 0.0047 0.0072 0.0108 0.0188 0
10、.0284 0.0333 0.0011 0.0017 0.0027 0.0048 0.0074 0.0114 0.0203 0.0315 0.0372 0.0021 0.0034 0.0055 0.0102 0.0164 0.0264 0.0493 0.0791 0.0943 1. 3 2 ISO 5725 , 1 , , , . 2. 1. ( ) . 3. 1 (r) (R) ISO 5725 . 1 2 (Rw) . 9. . a) b) c) d) D ISO 9441： 2002 6 A () 2 7 6 , 15 1985 . 17/1 N 653(1986. 3) . B . A
11、.1 . A.1 %(m/m) BCS 431/1 ( ) JSS 175 3 ( ) JSS 174 3 ( ) JSS 172 5 ( ) NBS 364 ( ) JSS 655 7 ( ) BCS 467 ( ) 0.004 0.011 0.020 0.054 0.157 0.60 1.06 D ISO 9441 : 2002 7 B () B.1 ( r) ( Rw R) - 135513 7017 (02)60094567 (02)600948878 http:/ KS D ISO 9441 : 2002 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS SteelDetermination of niobium content PAR spectrophotometric method ICS 77.080.20 Korean Agency for Technology and Standards http:/www.kats.go.kr
