1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS A ISO 9279 KS A ISO 9279:2012 2012 12 12 http:/www.kats.go.krKS A ISO 9279:2012 : ( ) ( ) () ( ) : () () ( ) ( ) ( ( ) ( ( ) : (http:/www.standard.go.kr) ： ：2012 12 12 2012-0698 ： ：() ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS A ISO 9279:2012 i ii
2、 . iii 1 1 2 1 3 1 4 1 4.1 .2 4.2 .2 4.3 II ( 1 ) .2 4.4 4 5 5 5.1 .5 5.2 .5 6 .6 KS A ISO 9279:2012 ii . , , . , , . KS A ISO 9279:2012 iii 1992 1 ISO 9279, Uranium dioxide pellets Determination of density and total porosity Mercury displacement method , . KS A ISO 9279:2012 Uranium dioxide pellets
3、 Determination of density and total porosity Mercury displacement method 1 UO2 . , UO2 PuO2 UO2 Gd2O3 , . . 1 g . 2 . . 3 3.1 , ( 1 ). II 10 % ( 1 ). 99.99 % . , . 3.2 , 1 Pa . 3.3 , 0.1 mg 3.4 , 0.1 K 4 , . KS A ISO 9279:2012 2 4.1 . 4.2 4.2.1 1 , 2 . 4.2.2 10 Pa 1 . 4.2.3 (m) 0.1 mg . 4.3 II ( 1 )
4、 4.3.1 II I . I (m1) 0.1 mg . 4.3.2 . 4.3.3 I II , (tap) I II 1 Pa . 4.3.4 II I I II . 4.3.5 , I II . 4.3.6 I (m2) 0.1 mg . 4.3.7 0.1 K 1 (Hg) . , 0.5 K . , II (VII) . KS A ISO 9279:2012 3 1 I I II II KS A ISO 9279:2012 4 1 C g/cm310 13.570 5 11 13.568 0 12 13.565 5 13 13.563 1 14 13.560 6 15 13.558
5、 2 16 13.555 7 17 13.553 3 18 13.550 8 19 13.548 3 20 13.545 9 21 13.543 5 22 13.541 0 23 13.538 5 24 13.536 1 25 13.533 6 26 13.531 2 27 13.528 7 28 13.526 3 29 13.523 8 30 13.521 4 31 13.518 9 32 13.516 5 33 13.514 1 34 13.511 6 35 13.509 2 36 13.506 7 37 13.504 3 38 13.501 8 39 13.499 4 40 13.497
6、 0 41 13.494 5 42 13.492 1 43 13.489 6 44 13.487 2 45 13.484 8 4.4 4.4.1 4.3 , 4.2 II . KS A ISO 9279:2012 5 4.4.2 4.3 . 4.3.1 4.3.7 , II I (m1) II , I (m2) . . . 5 5.1 5.1.1 II , II (VII) cm3 . Hg21IImmV= (1) m1 ： II , I (4.3.1)(g) m2 ： II , I (4.3.6)(g) Hg： (g/cm3) 5.1.2 () g/cm3 . Hg21IImmvm= (2)
7、 (Ptot) . 1001th=totP (3) m ： (4.2) (g) m1 ： II , I (4.4.2)(g) m2 ： II , I (4.4.2)(g) th ： (UO2 , 10.96 g/cm3) 5.2 5 g II 10 % , . a) 0.5 % . b) UO2 90 % 98 % , 0.3 % . KS A ISO 9279:2012 6 6 . a) b) c) d) e) f) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS A ISO 9279:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Uranium dioxide pellets Determination of density and total porosityMercury displacement method ICS 27.120.30
