Isotope
Result
Unit
UDRL's
Fraction
Exemption
Fraction
Pb210
Bq/g
0.3
0.000
100
0.000
Ra226
Bq/g
0.3
0.000
100
0.000
Ra228
Bq/g
0.3
0.000
100
0.000
Th228
Bq/g
0.3
0.000
10
0.000
U238
Bq/g
0.3
0.000
10
0.000
Th230
Bq/g
0.3
0.000
10
0.000
Th232
Bq/g
10
0.000
10
0.000
K40
Bq/g
17
0.000
1000
0.000
Specific Activity
UDRL Sum of Ratios
0.000
policy
If sum of ratios is greater than 1, materials are considered NORM.
Federal Sum of Ratios
0.000
gavel
If sum of ratios is greater than 1, these materials fall under Federal Jurisdiction.