KS E ISO 621-2012 Manganese ores-Determination of metallic iron content (metallic iron content not exceeding 2 %)-Sulphosalicylic acid photometric method《锰矿石 金属铁含量(不超过2 0 0)的测定 磺基水.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS E ISO 621 ( 2 % ) KS E ISO 621: 2012 2012 10 5 http:/www.kats.go.krKS E ISO 621:2012 : ( ) ( ) () ( ) : (http:/www.standard.go.kr) : :2002 10 7 :2012 10 5 2012-0512 : : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS E ISO 621:2012 i 1981 2 ISO 621, Ma

2、nganese ores Determination of metallic iron content(metallic iron content not exceeding 2 %) Sulphosalicylic acid photometric method , . KS E ISO 621:2012 ( 2 % ) Manganese ores Determination of metallic iron content (metallic iron content not exceeding 2 %) Sulphosalicylic acid photometric method 1

3、 . 2 % . 2 . . ( ) . KS E ISO 4296 1, 1: KS E ISO 4296 2, 2: 3 ( ) ( ) ( ) . . ( ) . 420 nm 430 nm . 4 4.1 (1 2), (1 4) 4.2 500 mL 600 mL 100 g . (1 1) pH (pH 5). 1 000 mL . 4.3 1 4 (60 70) 500 mL 500 g KS E ISO 621:2012 2 (CH3CO2Na 3H2O) 1 000 mL . 4.4 2.5 g ( ) 3 g 100 mL . 4.5 Fe , 0.1 g/L ( )(Fe

4、2O3) 750 800 0.143 0 g 1.19 g/mL 15 mL . 10 mL 1 000 mL 1 000 mL . 1 mL 0.000 1 g . 5 ( 420 430 nm) . 6 KS E ISO 4296 1 , KS E ISO 4296 2 . 100 m ( ) . 7 7.1 50 mL 100 mL 1 g . 7.2 7.2.1 (7.1) 20 mL (4.4) 10 . 7.2.2 100 mL 100 mL . . 10 mL 15 mL . 7.2.3 20 mL 100 mL (4.1) 3 . 10 mL (4.2) 10 mL (4.3)

5、 100 mL . 10 15 . 7.2.4 . a) , (4.5) . . b) (4.5) . KS E ISO 621:2012 3 8 8.1 % . a) K b) KmAmA0112100 A1 : A2 : m0 : 20 mL (g) m1 : (g) K : 8.2 ( %) ( %) 0.2 0.02 0.2 0.5 0.03 0.5 1.0 0.04 1.0 2.0 0.05 ( 2% ) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS E ISO 621:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Manganese oresDetermination of metallic iron content(metallic iron content not exceeding 2 %) Sulphosalicylic acid photometric method ICS 73.060.20

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