fi
4
+i
PESEEREED
beta scintillation counters with
t batisrounds of 0.3 to Oo2 counts per
(5)
minute have also been in us2,'~/
205
Reproducibility
In Table 2, duplicates strontium-90 analyses for some soil samples
collected in the United States in 1956 are tabulated,
to the satisfactory reproducibility of the method.
These data attest
Im all cases, the
analytical precision is within two standard deviations of the error due
to countings
(5)
LeVine, Ho Ds, Charlton, L., Graveson, Ro Te, Low Background Nuclear
Counting Equipment, HASL-60, Merch 23, 1959.