1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS D ISO 3750 KS D ISO 3750： 2012 2012 9 28 http:/www.kats.go.krKS D ISO 3750:2012 : ( ) ( ) () () ( ) : (http:/www.standard.go.kr) ： ：2002 12 9 ：2012 9 28 2012-0491 ： ： ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS D ISO 3750:2012 i ii 1 1 2 1 3 .1 4 2
2、 5 2 6 .3 6.1 .3 6.2 3 7 .3 8 3 8.1 3 8.2 .3 8.3 .4 8.4 4 9 .5 9.1 5 9.2 .5 10 .5 A( ) .7 B( ) 8 KS D ISO 3750:2012 ii 2006 2 ISO 3750, Zinc alloys Determination of magnesium contentFlame atomic absorption spectrometric method . KS D ISO 3750:2012 Zinc alloys Determination of magnesium content Flame
3、 atomic absorption spectrometric method 1 . ISO 301 KS D 2351 . 0.002 % 0.08 % . 2 . . ( ) . KS A ISO 5725 1, ( ) 1： KS A ISO 5725 2, ( ) 2： KS A ISO 5725 3, ( ) 3： KS D 2351, KS D ISO 20081, ISO 301, Zinc alloy ingots intended for casting 3 KS D ISO 20081 . 3.1 (flame atomic absorption spectrometry
4、) , . KS D ISO 3750:2012 2 4 , / ( / ) 285.21 nm . 5 5.1 . . 5.2 , 1.19 g/mL 5.3 , 1.4 g/mL 5.4 (5.2) (5.3) 180： 4 . . 5.5 (50 g/L ) (La2O3) 29.5 g 400 mL . 5 mL (5.2) 50 mL . . 500 mL . . 5.6 (10 g/L ) (8.3.1 ) (99.99 %) 10 g (5.4) 60 mL , . 1 000 mL . . 5.7 (1.0 g/L ) (8.3.1 ) (99.99 %) 1.0 g 10 m
5、L (5.2) . . . 100 mL . . (8.3.1 ) 50 mL 500 mL . . 5.8 (0.5 g/L) 250 mL 20 mL (5.2) 5 mL . 0.001 g 99.95 % 0.5 g . 1 000 mL . . 1 mL 0.5 mg . 5.9 (0.01 g/L) KS D ISO 3750:2012 3 (5.8) 20 mL 1 000 mL . (5.2) 5 mL , . 1 mL 0.01 mg . 5.10 (0.001 g/L) (5.9) 50 mL 500 mL . (5.2) 5 mL , . 1 mL 0.001 mg .
6、5.11 (5.2) (5.3) 3： 1 . 6 6.1 (5.11) . 6.2 / / / . . 5 cm 10 cm . 7 KS D ISO 20081 . 8 8.1 5 g 0.001 g . 8.2 8.2.1 (8.1) 250 mL (5.4) 40 mL . , 40 mL 50 mL . (5.2) 25 mL , . 8.2.2 250 mL . . KS D ISO 3750:2012 4 8.2.3 (8.2.2) 10 mL 100 mL . (5.2) 4 mL (5.5) 5 mL . . 8.3 8.3.1 (5.6) (5.7) . 100 mL 0
7、mg/L 0.02 mg/L (5.10) 0 mL 2 mL . . 8.4 (5.6) (5.7) . 0.02 mg/L . 8.3.2 100 mL 8 (5.2) 5 mL . 8.3.3 1 (5.6) a mL (5.7) b mL . 1 a b % a mL b mL 0.05 3.7 6.0 8.0 11.0 25 28.0 20 19 18 15 0 10 20 50 8.3.4 (5.9) 0.00 mL, 2.00 mL, 5.00 mL, 7.00 mL, 10.0 mL, 12.0 mL, 14.0 mL, 16.0 mL . 0.00 %, 0.01 %, 0.
8、025 %, 0.035 %, 0.05 %, 0.06 %, 0.07 %, 0.08 % . ZL6 ZP0610 (5.10) 4.00 mL 10.00 mL 0.002 % 0.005 % 2 . 8.3.5 (5.5) 5 mL . . 8.4 ( ) . 285.21 nm . ( ) . . KS D ISO 3750:2012 5 9 9.1 ( %) . . 1 . ISO 301 KS D 2351 . 9.2 4 7 10 , 3 ( 1 2 ). 1 3 2 KS A ISO 5725 1 ( , 1 , , , , ) . 2 1 ( ) . A.1 A.2 . K
9、S A ISO 5725 2 KS A ISO 5725 3 . 2 (r) (Rw R) ( 3 ) . B.1 . 3 (r) (R) KS A ISO 5725 3 . 2 (Rw) KS A ISO 5725 3 . 2 % r RwR 0.01 0.02 0.05 0.000 2 0.000 4 0.001 0 0.000 3 0.000 4 0.000 7 0.003 0 0.002 5 0.002 0 10 . a) b) KS D ISO 3750:2012 6 c) ( ) d) e) f) g) h) KS D ISO 3750:2012 7 A ( ) A.1 10 6
10、7 1999 . A.1 . A.2 . A.1 % r RwR ZL 2 ZL 3 ZL 5 ZL 6 ZL 8 ZL 12 ZL 27 0.037 0.035 0.036 0.000 5 0.021 0.023 0.012 0.039 3 0.037 8 0.038 8 0.000 2 0.022 0 0.024 7 0.013 1 0.000 7 0.000 7 0.000 8 0.000 6 0.000 7 0.000 2 0.000 6 0.000 4 0.000 8 0.000 4 0.000 8 0.000 3 0.002 7 0.001 6 0.002 8 0.002 1 0.
11、002 1 0.003 3 A.2 % Mg Al Cu Fe Pb Sn Cd Ni Si ZL 2 ZL 3 ZL 5 ZL 6 ZL 8 ZL 12 ZL 27 0.037 0.035 0.036 0.000 5 0.021 0.023 0.012 4.00 4.00 3.97 5.75 8.37 11.00 26.83 2.9 0.01 0.8 1.3 1.1 0.8 2.3 0.006 0.002 0.003 0.006 0.003 0.01 0.04 0.002 0.002 0.002 0.002 0.003 0.002 0.002 0.001 0.001 0.001 0.001
12、0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.02 0.02 0.02 0.02 0.02 0.02 002 KS D ISO 3750:2012 8 B ( ) B.1 (r) (Rw R) . 6912.1lg2828.0lgMg= wr 388.2lg1553.0lgMgw= wR 5001.3lg8242.0lgMg= wR wMg： 3 X (%) Y (%) B.1 (r) (Rw R) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS D ISO 3750:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Zinc alloysDetermination of magnesium contentFlame atomic absorption spectrometric method ICS 77.120.60
