KS A ISO 18589-5-2012 Measurement of radioactivity in the environment－Soil－Part 5：Measurement of strontium 90《环境放射性测量 土壤 第5部分 锶90的测量》.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS A ISO 18589 5 5： 90 KS A ISO 18589 5:2012 2012 12 12 http:/www.kats.go.krKS A ISO 18589 5:2012 : ( ) ( ) () ( ) : () ( ) () ( ) () () () () ( ) () () : (http:/www.standard.go.kr) ： ：2012 12 12 2012-0698 ： ：() ( 02-509-7270) (http:/www.kats.go.kr). 10 5 ,

2、. KS A ISO 18589 5:2012 i ii . iii 1 1 2 1 3 , .1 4 2 4.1 2 4.2 .3 5 .4 6 4 6.1 4 6.2 4 6.3 .5 6.4 .6 6.5 .6 6.6 .6 7 .7 7.1 90Y 90Sr .7 7.2 90Y 90Sr .8 7.3 90Sr 90Y 89Sr 90Sr .10 7.4 .12 8 .13 A( ) .14 B( ) 16 C( ) 90 90 .21 D( ) “ ” 24 26 KS A ISO 18589 5:2012 ii . , , . , , . KS A ISO 18589 5:201

3、2 iii 2009 1 ISO 18589 5, Measurement of radioactivity in the environmentSoil Part 5： Measurement of Strontium 90 , . . KS A ISO 18589 5:2012 5： 90 Measurement of radioactivity in the environment Soil Part 5： Measurement of strontium 90 1 (90Y 90Sr 89Sr) . , (PC) (LSC) . . , , , . ( / , / , / ) , (g

4、lobal fallout) . 89Sr . 89Sr 90Sr . 2 . . ( ) . KS A ISO 18589 1, 1： KS A ISO 18589 2, 2： , KS A ISO 80000 10, 10： KS I ISO 11074, KS Q ISO/IEC 17025, 3 , KS A ISO 18589 1, KS I ISO 11074 KS A ISO 80000 10 . m (kg) ai i (Bq/kg) Ai,s , i (Bq) KS A ISO 18589 5:2012 2 Ai i , t 0(Bq) tg ( ) t0 ( ) ts (

5、) rg r0 rs Rc,i i i i i i td, tf 0 , / ( ) rgj j , r0j j , rj j , tjt 0 , j u(ai) (Bq/kg) U (Bq/kg), U k u(ai) k 1, 2, a*i i (Bq/kg) a#i i (Bq/kg) ia i (Bq/kg) 4 90Sr, 90Y, 89Sr . 11) . 1 90Sr, 90Y, 89Sr 90Sr 90Y89Sr (keV) 196 926.7 584.6 28.8 a 2.67 d 50.6 d . PC LSC ( 2, 1, 2, 3). 4.1 , “ ” - . .

6、, , 90Sr 90Y, 89Sr . ( , ) . 1) ： BIPM(Bureau International des Poids et Mesures) KS A ISO 18589 5:2012 3 (擔體 )(： Sr Y) (：85Sr) . (AAS), (ICP-AES), - (ICP-MS), 85Sr . (gravimetric method) , . Sr Sr . 4.2 (PC) , (LSC) . PC 90Y 89Sr . Sr/Y A, B, C, D . 2 90Sr90Y 90Sr90Y 89Sr Sr YaSr b b 90Sr 90Y 90Sr8

7、9Sr (擔體 ) c85Sr Sr Y 85Sr Sr 90Sr90Y 15 20 ( ) 15 20 ( ) 1 1 2 90Sr 90Y 90Y 90Sr 90Y 89Sr PC LSC ( ) PC LSC ( ) PC LSC ( ) 90Sr90Y 90Sr 90Y 90Y 90Sr90Y 89Sr 90Sr 90Y 89Sr a 90Sr90Y , Y . b c ：85Sr , Sr Y , (AAS), (MS) . KS A ISO 18589 5:2012 4 5 A, B, C, D . . 6 6.1 (酸 ) . . . - , . A . 6.2 ：4,5, -

8、, 6, 7, 8. B, C, D . 6.2.1 (mineral salt) . . , . . - . , , (SrCO3) . B . 90Sr 90Y , , . , . ( ) . B . 89Sr , 90Sr 90Y 90Sr 90Y . 89Sr . 6.2.2 - KS A ISO 18589 5:2012 5 90Sr 90Y . . 3 ( ) . , , . , - . 90Y C . , PC 90Y LSC 90Y (Cerenkov radiation) . - , 90Y 90Y , . 6.2.3 “ ” . , . . D . 90Sr 90Y , .

9、 , . ( ) . B . 89Sr , 90Sr 90Y , 90Sr 90Y . 89Sr . 6.3 6.3.1 (LSC) - (excitation) . Sr Y . ( ) ( C ). (90Sr, 89Sr, 90Sr90Y, 90Y) . 9. 90Sr ( ) . 6.3.2 KS A ISO 18589 5:2012 6 - . Sr Y ( C ). . (90Sr, 89Sr, 90Sr90Y, 90Y) . 9. 90Sr ( ) . 6.4 . 6.5 , , . , . 90Y 90Sr , . 89Sr 90Sr 90Y LSC . 89Sr , 89Sr

10、 . 6.5.1 (LSC) - . - , . 90Sr , 90Y 90Sr 90Y . 90Sr . 6.5.2 - . 2 ( ) . - . 90Y 90Sr 90Sr , 90Sr . 6.6 KS A ISO 18589 5:2012 7 . 104 ts . (90Sr, 89Sr, 90Sr90Y, 90Y) . (1) , . i (rs r0)/Ai(1) 7 7.1 90Y 90Sr 7.1.1 90Sr 90Y . t 0( , 90Y ) 15 20 . , 90Sr90Y , rg . 89Sr . r0 . 90Sr90Y aSr Y (2) . YSrSrc,

11、0gYSr+=Rmrra (2) 90Sr (3) . YSrSrc,Sr90Sr900gYSrSrc,0gYSrSr9021)(22+=RmwwrrRmrraa(3) 7.1.2 GUM (ISO/IEC Guide 98 313) , Sr90a (4) . ()()/()()()(Sr902rel2Sr9000gg2Sr90Sr902relSr90202g22Sr90Sr90wuatrtrwwuaruruwau+=+=(4) , . w (5) . ( ) )()()(YSr2rel2relSrc,2relSr902rel += umuRuwu (5) Sr Y (6) . )()/()

12、/()()()(YSr2rel20s00ssYSr2rel0s2relYSr2rel +=+= AurrtrtrAurruu (6) KS A ISO 18589 5:2012 8 urel(ASr Y) . , urel(Rc,Sr) , . (KS A ISO 1192912) (7) 10Sr90a ( )Sr90au . ( ) )(/)/(Sr902rel2Sr9000g0Sr90Sr902Sr90Sr90wuatrtrwawau += (7) 7.1.3 Sr90a 0 , Sr90a (7) (KS A ISO 11929 ). (8) . 00g0Sr9011Sr90/)0(t

13、rtrwkuka +=(8) 0.05, k1 1.65 . 7.1.4 #Sr90a (9) (KS A ISO 11929 ). ( )( )( )Sr902rel2#Sr9000g0Sr90#Sr902Sr901Sr90#Sr901Sr90#Sr90/wuatrtrwawkaaukaa+=+=(9) 0.05, k1 1.65 . (9) #Sr90a , #Sr90a 2Sr90a . , k1 k1 k (9) (10) . ( )()Sr902rel2gSr902Sr90#Sr901/2wuktwkaa+= (10) 7.2 90Y 90Sr 7.2.1 90Y Sr Y t 0(

14、 , 90Y 90Sr 2.7 ) . 90Y rg . r0 . 90Y aY t 0 (11) . KS A ISO 18589 5:2012 9 cYfYdYgYYY0gfdYcYg0ggY1)()(RmeetwwrrdtteRmtrtratttt= (11) Rc Rc,Sr Rc,Y (integral) (tg tf td) 90Y , 90Sr (12) . Y0gYSr90)( wrraa = (12) 7.2.2 ISO/IEC Guide 98 3 , Sr90a (13) . () )()/()()()(Y2rel2Sr9000gg2YY2rel2Sr9002g22YSr

15、90wuatrtrwwuaruruwau +=+= (13) , . w (14) . )()()()(Y2rel2relc2relY2relumuRuwu += (14) Y (15) . )()/()/()()()(Y2rel20s00ssY2rel0s2relY2relAurrtrtrAurruu +=+= (15) urel(AY) . , urel(Rc) , (16) . ),(),()(Yc2relSrc2relc2relRuRuRu += (16) ),(Src2relRu u2rel(Rc,Y) , . (KS A ISO 11929 ) (17) 10Sr90a ( )Sr

16、90au . () )(/)/(Y2rel2Sr9000g0YSr902YSr90wuatrtrwawau += (17) 7.2.3 Sr90a 0 , Sr90a (17) (KS A ISO 11929 ). (18) . 00g0Y11#Sr90/)0(trtrwkuka += (18) 0.05, k1 1.65 . KS A ISO 18589 5:2012 10 7.2.4 #Sr90a (19) (KS A ISO 11929 ). ( ) ( ) )(/Y2rel2#Sr9000g0Y#Sr902Y1Sr90#Sr901Sr90#Sr90wuatrtrwawkaaukaa +=+= (19) 0.05, k1 1.65 . (19) #Sr90a , #Sr90a 2Sr90a . , k1 k1 k (19) (20) . ( )(1/2Y2rel2gY2Sr90#Sr90wuktwkaa+= (20) 7.3 90Sr 90Y 89Sr 90Sr 7.3.1 t 0( ) , (t1, t2) 2