KS A ISO 9892-2012 Uranium metal uranium dioxide powder and pellets and uranyl nitrate solutions-Determination of fluorine content-Fluoride ion selective electrode method《铀金属、二氧铀粉末.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS A ISO 9892 , KS A ISO 9892:2012 2012 12 12 http:/www.kats.go.krKS A ISO 9892:2012 : ( ) ( ) () ( ) : () () ( ) () () () () ( ) : (http:/www.standard.go.kr) : :2012 12 12 2012-0698 : :() ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS A ISO 9892:2012 i

2、ii . iii 1 1 2 1 2.1 .1 2.2 (Nernst) 2 3 2 4 3 5 3 5.1 3 6 4 6.1 4 6.2 4 6.3 .5 7 .5 7.1 .5 7.2 .6 8 .6 9 .6 A( ) (S) .7 A.1 .7 A.2 .7 KS A ISO 9892:2012 ii . , , . , , . KS A ISO 9892:2012 iii 1992 1 ISO 9892, Uranium metal, uranium dioxide powder and pellets, and uranyl nitrate solutions Determina

3、tion of fluorine content Fluoride ion selective electrode method , . KS A ISO 9892:2012 , Uranium metal, uranium dioxide powder and pellets, and uranyl nitrate solutions Determination of fluorine content Fluoride ion selective electrode method 1 1.1 , . 1.2 1 g 0.01 g . 300 g , 3 000 g , . . . 2 2.1

4、 . . . , (Nernst) . 110/12ai= SEEmm mi : (g) ma : (g) 12EE : (mV) S : KS A ISO 9892:2012 2 , . 2.2 , F . lgF0= SEE E : (mV) 0E : (mV) S : (20 C 58.2 mV) (VI) , H +22UO HF +FUO2 . . . FT/F FT: , . lgFT0SEE = lg00SEE += , , . 3 . 3.1 ( 5.00 g/L) 2 g 120 C 4 . . 1.105 g , 100 mL . 100 mL . 3.2 (PWF) (1

5、 3 ) 375 mL ( 1.42 g/mL) 125 mL 10 mL 500 mL . . 15 mL 10 mL 6.2, 6.3 7.1.1 . KS A ISO 9892:2012 3 m2 a), b) c) . a) m2 1.25 g , 490 mL 60 g: 0.012 mL (3.1) . b) 1.25 g m22.50 g , . c) m2 2.50 g , ( 1.42 g/mL) . 4 4.1 , 250 mL 500 mL 4.2 0.2 L 500 L 4.3 2 mol/L . 4.4 4.5 1012 1013 0.1 mV 4.6 50 mL 5

6、 5.1 5.1.1 . 5.1.2 , UF4 . 5.1.3 KS A ISO 9892:2012 4 . 6 6.1 6.1.1 1 , (m0) 0.01 g , 250 mL (4.1), 500 mL (4.1) . (PWF)(3.2) 10 mL , . . , . , . , 1 (V0) . 1 (m0) g (V0) mL 1 g/g 1 000 g/g 3.00 50 0.1 %(m/m) 1.0 %(m/m) 1.00 100 6.1.2 2 , (V1) . 2 V2 . 2 (V1) mL (V2) mL 1 g/mL 1 000 g/mL 50.01 50 0.

7、1 g/100 mL 1.0 g/100 mL 10.01 100 (5.00.05) mL 50 mL (4.6) . 10 mL (PWF)(3.2) 10 mL . . 6.2 ( ) . E1 0.1 mV . KS A ISO 9892:2012 5 . mV 0.5 mV/min . mV 17 mV . m3(g) . 0.01 mL . E2(mV) 0.1 mV . (t) 0.5 C . 6.3 6.1.1, 6.1.2 6.2 ( ) ( m2 )(7.1.1 ) . . 7 7.1 7.1.1 (1) (m1) (m2) (g) (2.1 ). 110/12321= S

8、EEmmm (1) m3 : (6.2 ) (g) 12EE : (6.2 ) (mV) S : t( C) , S 54.2 0.2 t( A ) 10 mV . 7.1.2 (2) (3) (g) (g) (wF) . 0021F5)(mVmmw= (2) 1221F5)(VVmmw= (3) m1 : (g) m2 : (g) m0 : (g)(6.2 ) KS A ISO 9892:2012 6 V0 : 6.1.1 (mL) V1 : 6.1.2 (mL) V2 : 6.1.2 (mL) 7.2 7.2.1 200 g/g 104 ( 2 ) 13.3 g/g . 7.2.2 2 g

9、/g 104 ( 2 ) 1.7 g/g . 8 6.1.1 . 6.2 7.1.1 , . , 6.2 ( ) 2 mV . 7.1.1 , 3 . 0.1 mL , 7.1.1 (1) A.2.2 (A.1) (4) . m1 m23/123252510VmSEE+(4) V3: (3.1) (mL) 2 500 g . 3 7.2 . , FT/F , . 9 . a) b) c) d) e) . KS A ISO 9892:2012 7 A ( ) (S) A.1 A.1.1 10 mL (PWF)(3.2) 15 mL 50 mL . A.1.2 , 0.1 mV mV (Eb) .

10、 A.1.3 10 L, 50 L, 200 L 1 000 L , 0.1 mV mV (Ei) . , 4.995 g/mL, 24.88 g/mL, 98.05 g/mL 454.6 g/mL . 0.5 C (t) . A.2 A.2.1 4 i( g/ mL) (log10) x- mV y- . 0.01 mV (S) . A.2.2 4 (i) (F) B(g/ mL) . 110/biiB= SEE (A.1) i: i ( g/ mL) biEE : (mV) S : t( C) 4 (g/mL- ) . A.2.3 4 (A.1.3 ) . A.2.1 . A.2.4 0.

11、1 mV A.2.2 A.2.3 . A.2.5 0.1 mV . S t 2 % . S 54.2 0.2 t (A.2) . , 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS A ISO 9892:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Uranium metal, uranium dioxide powder and pellets, and uranyl nitrate solutions Determination of fluorine content Fluoride ion selective electrode method ICS 27.120.30

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