1、 KS D ISO 4744KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS KS D ISO 4744 : 2002 (2007 ) 2002 11 28 http:/www.kats.go.kr : ( ) ( ) () : (http:/www.standard.go.kr) : : 2002 11 28 : 2007 6 29 2007-0363 : ( 02-509-72747) . (http:/www.kats.go.kr) 7 5 , . ICS 77.120.30 KS D ISO 4744: 2002(2007 ) Copper and co
2、pper alloysDetermination of chromium content Flame atomic absorption spectrometric method 1984 ISO 4744: 1984(E)(Copper and copper alloys Determination of chromium content Flame atomic absorption spectrometric method) , . 1. , . 0.003 2.0 % (m/m) . 2. . 357.9 nm . 3. . . 3.1 1.84 g/mL 3.2 30 %(m/m)
3、3.3 1.2 g/mL, 34 %(m/m) , 1.4 g/mL, 500 mL 500 mL . 3.4 20 g/L 1 000 mL 20.0 g , (3.3) 400 mL , . . , 200 mL . 5 . 200 mL . , 1 000 mL (volumetric flask) . 50 mL 1.0 g . 45 mL 0.9 g . 3.5 , 0.5 g Cr/L 140 (desiccator) (K2Cr2O7) 1.414 2 g 0.000 1 g 400 mL 20 mL . (3.1) 5 mL (3.2) . 2 mL . ( ) , 1 000
4、 mL D ISO 4744: 2002 2 . 1 mL 0.5 mg . 3.6 , 0.025 g Cr/L (3.5) 25 mL 500 mL . . 1 mL 0.025 mg . 4. 4.1 (burette) 0.05 mL 4.2 (atomic absorption spectrometer) . 4.3 (chromium hollow-cathode lamp) 4.4 4.5 5. (1) (miiling) (drilling) 0.5 mm . (1) . 6. 6.1 (test portion) (test sampling) 1 g 0.001 g (5.
5、). 6.2 6.2.1 (4.1) , 9 100 mL (3.5 3.6) . (3.4) 50 mL , . 6.2.2 (4.2) (4.3) . . 357.9 nm . . 6.2.3 (6.2.1) . . . 6.2.4 x 100 mL (mg) , y . 1. . . 2. . 6.3 6.3.1 6.3.1.1 250 mL (6.1) , (3.3) 20 mL D ISO 4744: 2002 3 . (3.1) 20 mL . . 5 . 20 30 mL . 6.3.1.2 0.002 0.20 %(m/m) , (6.3.1) 100 mL , . 6.3.1
6、.3 0.20 2 %(m/m) , (6.3.1) 100 mL , . 10 mL 100 mL (3.4) 45 mL , . 6.3.2 6.3.2.1 (6.2.1) 6.3.2 (6.3.1) . (6.2.4) (6.3.1) 100 mL . 6.3.2.2 (bracketing measurement) (6.2.1) 2 6.2.3 (6.3.1) 2 . (3.5 3.6) 6.2.1 . (3.6) (3.5) 1 g/100 mL(6.4.1.1) 0.1 g/100 mL(6.4.1.2)ML mL mg %(m/m) %(m/m) 0 0 0 0 1 0.025
7、 0.002 5 2 0.05 0.005 4 0.10 0.010 8 0.20 0.020 0.20 20 0.50 0.050 0.50 2 1.0 0.10 1.0 3 1.5 0.15 1.5 4 2.0 0.20 2.0 6.4 . 7. 7.1 100 mL mg c . 1210121)(AAAAccc+ c1: (6.3.2.2) (mg/100 mL) c2: (6.3.2.2) D ISO 4744: 2002 4 (mg/100 mL) A0: (6.3.1) A1: c1 A2: c2 7.2 . rmcc101 c: 7.1 (6.3.1) (mg/100 mL)
8、c1: (6.4) (mg/100 mL) m: (6.1) (g) r: (6.3.1) (6.2.1) 8. . a) b) c) d) e) 5 KS D ISO 4744: 2002 , . 1. KS . (KS) (ISO) , . 2. 1984 ISO 4744(Copper Copper alloys Determination of chromium content Flame atomic absorption spectrometric method) , “ ” . SI . 3. . KS D 1942 , RKR , 540 nm . . 357.9 nm . . . 135513 7017 (02)60094567 (02)600948878 http:/ KS D ISO 4744 : 2002 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Copper and copper alloys Determination of chromium content Flame atomic absorption spectrometric method ICS 77.120.30 Korean Agency for Technology and Standards http:/www.kats.go.kr