1000 - PeTOm erry or PrVyriy $ PePrrity roPrrer @ Duplicates overlap within 2 o T © Duplicates fail to overlap within 2 0 r = ec = a z 4 ¥ x ~— J J | 4 /e 7e | 3 7 4 7=~ O f a fe Z*% oO / — 71 7 Y |: eo” 7 am LY 0.1L c+ ye?” / 7® 0.01 % 3 + 0.01 / x y) foyok EL. | 7 Y @ ‘°F $ 7 / ™ C ra ie Porta * 100 ~ 8 a CT fT Y }= ' 1+ 4 a 7 LL posiitl 0.1 i i tril 1.0 1 |i toil 10 Let bd Lisl 100 i jy tisi 1000 Aliquot B (pCi/g) Figure A34. Acceptable quality contro! results for duplicate pairs analyzed for !37Cs in soil by Laboratory of Radiation Ecology. Broken line represents perfect agreement and is not a fit to the data. Three pairs (two acceptable) involving detection limits are not shown. 62