1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M 8421 10 ( )KS M 8421:2012 2012 12 28 http:/www.kats.go.krKS M 8421:2012 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :1997 12 24 :2012 12 28 2012-0817 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS M 8421:2012 10 ( ) Sodium sulfate decahydrate N
2、a2SO410H2O FW: 322.20 1 10 ( 10 .) . 2 . . ( ) . KS M 8001, 3 3.1 10 32 . . 3.2 a) 0.5 g 10 mL (100 g/L) . b) 2 g 20 mL KS M 8001 6.29( ) a)( ) . 4 10 5. 1 . KS M 8421:2012 2 1 pH(50 g/L) (Cl) (NO3) (PO4) (K) (Cu) (Mg) (Ca) (Zn) (Pb) (Fe) (NH4) 98.0 % 102.0 % 5.0 8.0 2 mg/kg 5 mg/kg 4 mg/kg 0.005 %
3、1 mg/kg 2 mg/kg 5 mg/kg 1 mg/kg 1 mg/kg 2 mg/kg 5 mg/kg 5 5.1 a) 6 g 0.1 mg (250 mL) 25 mL . b) KS M 8001 6.33( ) c)( ) . , 0.1 mol/L . 0.1 mol/L 1 mL 0.016 110 g Na2SO410H2O . 5.2 2 g 20 mL . 5.3 pH(50 g/L) a) 5.0 g 100 mL . b) KS M 8001 6.5(pH) . 5.4 (Cl) a) 5 g 20 mL . b) (0.01 mg/mL) 1.0 mL 20 m
4、L . c) KS M 8001 6.7 a)( ) . 5.5 (NO3) a) 10 g 100 mL . KS M 8421:2012 3 b) (0.01 mg/mL) 5.0 mL 100 mL . c) KS M 8001 6.10 e)( ) . 5.6 (PO4) a) 3.0 g 20 mL . b) (0.01 mg/mL) 1.2 mL 20 mL . c) KS M 8001 6.13 a)( ) . 5.7 (K) a) 10 g 100 mL (S ). S 10 mL( 1.0 g) 100 mL (X )(5.9 5.10 ). b) S 10 mL (0.01
5、 mg/mL) 5.0 mL, (0.01 mg/mL) 0.20 mL, (0.01 mg/mL) 0.50 mL 100 mL (Y )(5.9 5.10 ). c) KS M 8001 6.30( ) . 1 766.5 nm, 2760 nm 5.8 (Cu) a) 10 g 25 mL (100 g/L) 2 mL (2: 3) pH 5.5 50 mL . b) 10 g 25 mL, (0.01 mg/mL) 1.0 mL, (0.01 mg/mL) 1.0 mL, (0.01 mg/mL) 1.0 mL, (0.01 mg/mL) 2.0 mL (100 g/L) 2 mL (
6、2: 3) pH 5.5 50 mL . c) (100 g/L) 2 mL (2: 3) pH 5.5 5 mL . d) KS M 8001 6.31( ) b)( ) 4)( ) (X , Y Z 5.11, 5.12 5.13 ). 324.7 nm 5.9 (Mg) a) 5.7 X b) 5.7 Y c) KS M 8001 6.31( ) a)( ) 4)( ) . 285.2 nm 5.10 (Ca) a) 5.7 X b) 5.7 Y c) KS M 8001 6.31 a) 4) 4.3) . 422.7 nm 5.11 (Zn) KS M 8421:2012 4 a) 5
7、.8 X b) 5.8 Y c) 5.8 Z d) KS M 8001 6.31 b) 4) 4.3) . 213.9 nm 5.12 (Pb) a) 5.8 X b) 5.8 Y c) 5.8 Z d) KS M 8001 6.31 b) 4) 4.3) . 283.3 nm 5.13 (Fe) a) 5.8 X b) 5.8 Y c) 5.8 Z d) KS M 8001 6.31 b) 4) 4.3) . 248.3 nm 5.14 (NH4) a) 2.0 g 10 mL . b) (0.01 mg/mL) 1.0 mL 10 mL . c) KS M 8001 6.11 d)( ) . 6 . 7 10 25 . 8 . a) “ 10 ” “ ” b) c) ( ) d) e) f) g) 10() 153787 1 92 3(16) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS M 8421:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Sodium sulfate decahydrate ICS 71.040.30
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