KS A ISO 9006-2008 Uranium metal and uranium dioxide powder and pellets－Determination of nitrogen content－Method using ammonia-sensing electrode《铀金属二氧化铀粉末和芯块 氮含量的测定 氨敏电极法》.pdf

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2、 i . , , . , , . KS A ISO 9006:2008 Uranium metal and uranium dioxide powder and pellets Determination of nitrogen content Method using ammonia-sensing electrode 1994 1 ISO 9006, Uranium metal and uranium dioxide powder and pellets Determination of nitrogen content Method using ammonia-sensing elect

3、rode , . 1 . . 9 g600 g . (interference) (ammine) , . 2 2.1 , . , (VI) . (ethylene diaminetetraacetic acid： EDTA) . . 2.2 0.5 g . , . , 6 . , (VI) . , . , (VI) UO2(CO3)4 . 3 KS A ISO 9006:2008 2 . , . . , , . 3 +2224UO(OO)U +43322322)(COUO3COUO OHNHOHNH234+4 . 4.1 0.1 g/mL ( ). 7. . 4.2 , =1.18 g/mL

4、 4.3 , 290 g/L 4.4 250 g (EDTA), 2.5 g 1 L . 4.5 , 1 g/L 5 g 120 4 . 3.821 g 1 L . 4.6 ( =1.42 g/mL) 4.7 5 KS A ISO 9006:2008 3 5.1 (0.1 mV , ) 5.2 , 10 mL, (4.4) 2 mL (4.5) 50 L . 5.3 5.4 (500 L 0.2 L .) 6 6.1 6.1.1 2 g 100 mL . (4.1) 10 mL (4.6) 10 mL . . . , (4.7) , . . . (7. ) . 6.1.2 75 m . 1 g

5、 . . 6.1.3 . 7 7.1 7.1.1 (6.1.2 6.1.3 ) 0.56 g0.58 g (6.1.1 ) 0.48 g0.52 g 0.001 g , m0 . 25 mL . KS A ISO 9006:2008 4 . , . 7.1.2 (4.1) 1 mL, (4.2) 1 mL, (4.3) 0.5 mL . . . . . 7.1.3 (4.4) 15 mL . (5.3) . 7.1.4 , 30 . 7.2 7.2.1 (5.2) . 7.2.2 7.1 , 0.1 mV , U1 . . . 0.2 mV/min . 7.2.3 17 mV33 mV (5.

6、4) . (4.5) V mL . V L V g . 7.2.4 0.1 mV , U2 . 7.3 7.3.1 1 mL, (4.2) 1 mL 0.5 mL (4.3) 25 mL , m2 . . 7.3.2 7.1.3 7.2 . NH3 1 g , . (1 g) (Nernst) , 8.1.1 . NH3 2 g5 g . KS A ISO 9006:2008 5 8 8.1 8.1.1 m1(g) m2 . m1 m2= 110/)(321 SUUm m3 ： (g) (U1 U2) ： V L (7.2.3 ) S ： A . m1 m2= 15) 001.015(1015

7、/)(321+VmSUU (1 g 9 g600 g ) , . 8.1.2 (g) m4 8.1.1 (m1) 7.3.1 m2 . m4= m1 m2 8.1.3 (WN) 100 1 g . 04NmmW = m0： (7.1.1 ) 8.2 8.2.1 40 g/g 58 2 12 g/g . 8.2.2 63 g/g 160 2 14.4 g/g . 8.2.3 KS A ISO 9006:2008 6 6 g/g 45 2 6 g/g . 8.2.4 (bias) . . 9 . a) b) c) d) e) KS A ISO 9006:2008 7 A ( ) A.1 A.1.1

8、 (4.4) 10 mL 25 mL . (5.4) (4.5) 2 L . . A.1.2 , 0.1 mV , Ub . A.1.3 10 L, 50 L, 200 L 1 000 L , 0.1 mV , Ui . ci 0.999 g/mL, 4.975 g/mL, 19.61 g/mL 90.91 g/mL . A.2 A.2.1 , 4 ci(g/mL) x , Ui(mV) y (log10) . S 0.01 mV . A.2.2 4 ic cbi(g/mL) . 110/)(bb= SUUiiicc ci ： i Ui ： i (mV) Ub ： (mV) S ： 4 (g/

9、mL) . A.2.3 4 (A.1.3) . A.2.1 . A.2.4 0.01 mV A.2.2 A.2.3 . A.2.5 0.1 mV . KS A ISO 9006:2008 8 1 , . 2 , . 5 (O,U), (c1,U1), (c2,U2), (c3,U3) (c4,U4) . U = E0 S log(c cb) E0： 3 E0, S cb . 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS A ISO 9006:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Uranium metal and uranium dioxide powder and pelletsDetermination of nitrogen contentMethod using ammonia-sensing electrode ICS 27.120.30