2.2.7.2.2.1

the following basic values for individual radionuclides are given in table 2.2.7.2.2.1:

(a) a1 and a2 in tbq;

(b) activity concentration limits for exempt material in bq/g; and

table 2.2.7.2.2.1: basic radionuclides values for individual radionuclides

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
actinium (89)
ac-225 (a)	8 × 10-1	6 × 10-3	1 × 101	1 × 104
ac-227 (a)	9 × 10-1	9 × 10-5	1 × 10-1	1 × 103
ac-228	6 × 10-1	5 × 10-1	1 × 101	1 × 106
silver (47)
ag-105	2 × 100	2 × 100	1 × 102	1 × 106
ag-108m (a)	7 × 10-1	7 ×10-1	1 ×101 (b)	1 × 106 (b)
ag-110m (a)	4 × 10-1	4 × 10-1	1 × 101	1 × 106
ag-111	2 × 100	6 × 10-1	1 × 103	1 × 106
aluminium (13)
al-26	1 × 10-1	1 × 10-1	1 × 101	1 × 105
americium (95)	1 × 10-1	1 × 10-1	1 × 101	1 × 105
am-241	1 × 101	1 × 10-3	1 × 100	1 × 104
am-242m (a)	1 × 101	1 × 10-3	1 × 100 (b)	1 × 104 (b)
am-243 (a)	5 × 100	1 × 10-3	1 × 100 (b)	1 × 103 (b)
argon (18)
ar-37	4 × 101	4 × 101	1 × 106	1 × 108
ar-39	4 × 101	2 × 101	1 × 107	1 × 104
ar-41	3 × 10-1	3 × 10-1	1 × 102	1 × 109
arsenic (33)
as-72	3 × 10-1	3 × 10-1	1 × 101	1 × 105
as-73	4 × 101	4 × 101	1 × 103	1 × 107
as-74	1 × 100	9 × 10-1	1 × 101	1 × 106
as-76	3 × 10-1	3 × 10-1	1 × 102	1 × 105
as-77	2 × 101	7 × 10-1	1 × 103	1 × 106
astatine (85)
at-211 (a)	2 × 101	5 × 10-1	1 × 103	1 × 107

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
gold (79)
au-193	7 × 100	2 × 100	1 × 102	1 × 107
au-194	1 × 100	1 × 100	1 × 101	1 × 106
au-195	1 × 101	6 × 100	1 × 102	1 × 107
au-198	1 × 100	6 × 10-1	1 × 102	1 × 106
au-199	1 × 101	6 × 10-1	1 × 102	1 × 106
barium (56)
ba-131 (a)	2 × 100	2 × 100	1 × 102	1 × 106
ba-133	3 × 100	3 × 100	1 × 102	1 × 106
ba-133m	2 × 101	6 × 10-1	1 × 102	1 × 106
ba-140 (a)	5 × 10-1	3 × 10-1	1 × 101 (b)	1 × 105 (b)
beryllium (4)
be-7	2 × 101	2 × 101	1 × 103	1 × 107
be-10	4 × 101	6 × 10-1	1 × 104	1 × 106
bismuth (83)
bi-205	7 × 10-1	7 × 10-1	1 × 101	1 × 106
bi-206	3 × 10-1	3 × 10-1	1 × 101	1 × 105
bi-207	7 × 10-1	7 × 10-1	1 × 101	1 × 106
bi-210	1 × 100	6 × 10-1	1 × 103	1 × 106
bi-210m (a)	6 × 10-1	2 × 10-2	1 × 101	1 × 105
bi-212 (a)	7 × 10-1	6 × 10-1	1 × 101 (b)	1 × 105 (b)
berkelium (97)
bk-247	8 × 100	8 × 10-4	1 × 100	1 × 104
bk-249 (a)	4 × 101	3 × 10-1	1 × 103	1 × 106
bromine (35)
br-76	4 × 10-1	4 × 10-1	1 × 101	1 × 105
br-77	3 × 100	3 × 100	1 × 102	1 × 106
br-82	4 × 10-1	4 × 10-1	1 × 101	1 × 106
carbon (6)
c-11	1 × 100	6 × 10-1	1 × 101	1 × 106
c-14	4 × 101	3 × 100	1 × 104	1 × 107

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
calcium (20)
ca-41	unlimited	unlimited	1 × 105	1 × 107
ca-45	4 × 101	1 × 100	1 × 104	1 × 107
ca-47 (a)	3 × 100	3 × 10-1	1 × 101	1 × 106
cadmium (48)
cd-109	3 × 101	2 × 100	1 × 104	1 × 106
cd-113m	4 × 101	5 × 10-1	1 × 103	1 × 106
cd-115 (a)	3 × 100	4 × 10-1	1 × 102	1 × 106
cd-115m	5 × 10-1	5 × 10-1	1 × 103	1 × 106
cerium (58)
ce-139	7 × 100	2 × 100	1 × 102	1 × 106
ce-141	2 × 101	6 × 10-1	1 × 102	1 × 107
ce-143	9 × 10-1	6 × 10-1	1 × 102	1 × 106
ce-144 (a)	2 × 10-1	2 × 10-1	1 × 102 (b)	1 × 105 (b)
californium (98)
cf-248	4 × 101	6 × 10-3	1 × 101	1 × 104
cf-249	3 × 100	8 × 10-4	1 × 100	1 × 103
cf-250	2 × 101	2 × 10-3	1 × 101	1 × 104
cf-251	7 × 100	7 × 10-4	1 × 100	1 × 103
cf-252	1 × 10-1	3 × 10-3	1 × 101	1 × 104
cf-253 (a)	4 × 101	4 × 10-2	1 × 102	1 × 105
cf-254	1 × 10-3	1 × 10-3	1 × 100	1 × 103
chlorine (17)
cl-36	1 × 101	6 × 10-1	1 × 104	1 × 106
cl-38	2 × 10-1	2 × 10-1	1 × 101	1 × 105
curium (96)
cm-240	4 × 101	2 × 10-2	1 × 102	1 × 105
cm-241	2 × 100	1 × 100	1 × 102	1 × 106
cm-242	4 × 101	1 × 10-2	1 × 102	1 × 105
cm-243	9 × 100	1 × 10-3	1 × 100	1 × 104
cm-244	2 × 101	2 × 10-3	1 × 101	1 × 104
cm-245	9 × 100	9 × 10-4	1 × 100	1 × 103
cm-246	9 × 100	9 × 10-4	1 × 100	1 × 103

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
cm-247 (a)	3 × 100	1 × 10-3	1 × 100	1 × 104
cm-248	2 × 10-2	3 × 10-4	1 × 100	1 × 103
cobalt (27)
co-55	5 × 10-1	5 × 10-1	1 × 101	1 × 106
co-56	3 × 10-1	3 × 10-1	1 × 101	1 × 105
co-57	1 × 101	1 × 101	1 × 102	1 × 106
co-58	1 × 100	1 × 100	1 × 101	1 × 106
co-58m	4 × 101	4 × 101	1 × 104	1 × 107
co-60	4 × 10-1	4 × 10-1	1 × 101	1 × 105
chromium (24)
cr-51	3 × 101	3 × 101	1 × 103	1 × 107
caesium (55)
cs-129	4 × 100	4 × 100	1 × 102	1 × 105
cs-131	3 × 101	3 × 101	1 × 103	1 × 106
cs-132	1 × 100	1 × 100	1 × 101	1 × 105
cs-134	7 × 10-1	7 × 10-1	1 × 101	1 × 104
cs-134m	4 × 101	6 × 10-1	1 × 103	1 × 105
cs-135	4 × 101	1 × 100	1 × 104	1 × 107
cs-136	5 × 10-1	5 × 10-1	1 × 101	1 × 105
cs-137 (a)	2 × 100	6 × 10-1	1 × 101 (b)	1 × 104 (b)
copper (29)
cu-64	6 × 100	1 × 100	1 × 102	1 × 106
cu-67	1 × 101	7 × 10-1	1 × 102	1 × 106
dysprosium (66)
dy-159	2 × 101	2 × 101	1 × 103	1 × 107
dy-165	9 × 10-1	6 × 10-1	1 × 103	1 × 106
dy-166 (a)	9 × 10-1	3 × 10-1	1 × 103	1 × 106
erbium (68)
er-169	4 × 101	1 × 100	1 × 104	1 × 107
er-171	8 × 10-1	5 × 10-1	1 × 102	1 × 106
europium (63)
eu-147	2 × 100	2 × 100	1 × 102	1 × 106
eu-148	5 × 10-1	5 × 10-1	1 × 101	1 × 106

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
eu-149	2 × 101	2 × 101	1 × 102	1 × 107
eu-150(short lived)	2 × 100	7 × 10-1	1 × 103	1 × 106
eu-150(long lived)	7 × 10-1	7 × 10-1	1 × 101	1 × 106
eu-152	1 × 100	1 × 100	1 × 101	1 × 106
eu-152m	8 × 10-1	8 × 10-1	1 × 102	1 × 106
eu-154	9 × 10-1	6 × 10-1	1 × 101	1 × 106
eu-155	2 × 101	3 × 100	1 × 102	1 × 107
eu-156	7 × 10-1	7 × 10-1	1 × 101	1 × 106
fluorine (9)
f-18	1 × 100	6 × 10-1	1 × 101	1 × 106
iron (26)
fe-52 (a)	3 × 10-1	3 × 10-1	1 × 101	1 × 106
fe-55	4 × 101	4 × 101	1 × 104	1 × 106
fe-59	9 × 10-1	9 × 10-1	1 × 101	1 × 106
fe-60 (a)	4 × 101	2 × 10-1	1 × 102	1 × 105
gallium (31)
ga-67	7 × 100	3 × 100	1 × 102	1 × 106
ga-68	5 × 10-1	5 × 10-1	1 × 101	1 × 105
ga-72	4 × 10-1	4 × 10-1	1 × 101	1 × 105
gadolinium (64)
gd-146 (a)	5 × 10-1	5 × 10-1	1 × 101	1 × 106
gd-148	2 × 101	2 × 10-3	1 × 101	1 × 104
gd-153	1 × 101	9 × 100	1 × 102	1 × 107
gd-159	3 × 100	6 × 10-1	1 × 103	1 × 106
germanium (32)
ge-68 (a)	5 × 10-1	5 × 10-1	1 × 101	1 × 105
ge-71	4 × 101	4 × 101	1 × 104	1 × 108
ge-77	3 × 10-1	3 × 10-1	1 × 101	1 × 105
hafnium (72)
hf-172 (a)	6 × 10-1	6 × 10-1	1 × 101	1 × 106
hf-175	3 × 100	3 × 100	1 × 102	1 × 106
hf-181	2 × 100	5 × 10-1	1 × 101	1 × 106
hf-182	unlimited	unlimited	1 × 102	1 × 106

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
mercury (80)
hg-194 (a)	1 × 100	1 × 100	1 × 101	1 × 106
hg-195m (a)	3 × 100	7 × 10-1	1 × 102	1 × 106
hg-197	2 × 101	1 × 101	1 × 102	1 × 107
hg-197m	1 × 101	4 × 10-1	1 × 102	1 × 106
hg-203	5 × 100	1 × 100	1 × 102	1 × 105
holmium (67)
ho-166	4 × 10-1	4 × 10-1	1 × 103	1 × 105
ho-166m	6 × 10-1	5 × 10-1	1 × 101	1 × 106
iodine (53)
i-123	6 × 100	3 × 100	1 × 102	1 × 107
i-124	1 × 100	1 × 100	1 × 101	1 × 106
i-125	2 × 101	3 × 100	1 × 103	1 × 106
i-126	2 × 100	1 × 100	1 × 102	1 × 106
i-129	unlimited	unlimited	1 ×102	1 × 105
i-131	3 × 100	7 × 10-1	1 × 102	1 × 106
i-132	4 × 10-1	4 × 10-1	1 × 101	1 × 105
i-133	7 × 10-1	6 × 10-1	1 × 101	1 × 106
i-134	3 × 10-1	3 × 10-1	1 × 101	1 × 105
i-135 (a)	6 × 10-1	6 × 10-1	1 × 101	1 × 106
indium (49)
in-111	3 × 100	3 × 100	1 × 102	1 × 106
in-113m	4 × 100	2 × 100	1 × 102	1 × 106
in-114m (a)	1 × 101	5 × 10-1	1 × 102	1 × 106
in-115m	7 × 100	1 × 100	1 × 102	1 × 106
iridium (77)
ir-189 (a)	1 × 101	1 × 101	1 × 102	1 × 107
ir-190	7 × 10-1	7 × 10-1	1 × 101	1 × 106
ir-192	1 × 100(c)	6 × 10-1	1 × 101	1 × 104
ir-194	3 × 10-1	3 × 10-1	1 × 102	1 × 105
potassium (19)
k-40	9 × 10-1	9 × 10-1	1 × 102	1 × 106
k-42	2 × 10-1	2 × 10-1	1 × 102	1 × 106

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
k-43	7 × 10-1	6 × 10-1	1 × 101	1 × 106
krypton (36)
kr-79	4 × 100	2 × 100	1 × 103	1 × 105
kr-81	4 × 101	4 × 101	1 × 104	1 × 107
kr-85	1 × 101	1 × 101	1 × 105	1 × 104
kr-85m	8 × 100	3 × 100	1 × 103	1 × 1010
kr-87	2 × 10-1	2 × 10-1	1 × 102	1 × 109
lanthanum (57)
la-137	3 × 101	6 × 100	1 × 103	1 × 107
la-140	4 × 10-1	4 × 10-1	1 × 101	1 × 105
lutetium (71)
lu-172	6 × 10-1	6 × 10-1	1 × 101	1 × 106
lu-173	8 × 100	8 × 100	1 × 102	1 × 107
lu-174	9 × 100	9 × 100	1 × 102	1 × 107
lu-174m	2 × 101	1 × 101	1 × 102	1 × 107
lu-177	3 × 101	7 × 10-1	1 × 103	1 × 107
magnesium (12)
mg-28 (a)	3 × 10-1	3 × 10-1	1 × 101	1 × 105
manganese (25)
mn-52	3 × 10-1	3 × 10-1	1 × 101	1 × 105
mn-53	unlimited	unlimited	1 × 104	1 × 109
mn-54	1 × 100	1 × 100	1 × 101	1 × 106
mn-56	3 × 10-1	3 × 10-1	1 × 101	1 × 105
molybdenum (42)
mo-93	4 × 101	2 × 101	1 × 103	1 × 108
mo-99 (a)	1 × 100	6 × 10-1	1 × 102	1 × 106
nitrogen (7)
n-13	9 × 10-1	6 × 10-1	1 × 102	1 × 109
sodium (11)
na-22	5 × 10-1	5 × 10-1	1 × 101	1 × 106
na-24	2 × 10-1	2 × 10-1	1 × 101	1 × 105
niobium (41)
nb-93m	4 × 101	3 × 101	1 × 104	1 × 107

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
nb-94	7 × 10-1	7 × 10-1	1 × 101	1 × 106
nb-95	1 × 100	1 × 100	1 × 101	1 × 106
nb-97	9 × 10-1	6 × 10-1	1 × 101	1 × 106
neodymium (60)
nd-147	6 × 100	6 × 10-1	1 × 102	1 × 106
nd-149	6 × 10-1	5 × 10-1	1 × 102	1 × 106
nickel (28)
ni-59	unlimited	unlimited	1 × 104	1 × 108
ni-63	4 × 101	3 × 101	1 × 105	1 × 108
ni-65	4 × 10-1	4 × 10-1	1 × 101	1 × 106
neptunium (93)
np-235	4 × 101	4 × 101	1 × 103	1 × 107
np-236(short-lived)	2 × 101	2 × 100	1 × 103	1 × 107
np-236(long-lived)	9 × 100	2 × 10-2	1 × 102	1 × 105
np-237	2 × 101	2 × 10-3	1 × 100 (b)	1 × 103 (b)
np-239	7 × 100	4 × 10-1	1 × 102	1 × 107
osmium (76)
os-185	1 × 100	1 × 100	1 × 101	1 × 106
os-191	1 × 101	2 × 100	1 × 102	1 × 107
os-191m	4 × 101	3 × 101	1 × 103	1 × 107
os-193	2 × 100	6 × 10-1	1 × 102	1 × 106
os-194 (a)	3 × 10-1	3 × 10-1	1 × 102	1 × 105
phosphorus (15)
p-32	5 × 10-1	5 × 10-1	1 × 103	1 × 105
p-33	4 × 101	1 × 100	1 × 105	1 × 108
protactinium (91)
pa-230 (a)	2 × 100	7 × 10-2	1 × 101	1 × 106
pa-231	4 × 100	4 × 10-4	1 × 100	1 × 103
pa-233	5 × 100	7 × 10-1	1 × 102	1 × 107
lead (82)
pb-201	1 × 100	1 × 100	1 × 101	1 × 106
pb-202	4 × 101	2 × 101	1 × 103	1 × 106
pb-203	4 × 100	3 × 100	1 × 102	1 × 106

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
pb-205	unlimited	unlimited	1 × 104	1 × 107
pb-210 (a)	1 × 100	5 × 10-2	1 × 101 (b)	1 × 104 (b)
pb-212 (a)	7 × 10-1	2 × 10-1	1 × 101 (b)	1 × 105 (b)
palladium (46)
pd-103 (a)	4 × 101	4 × 101	1 × 103	1 × 108
pd-107	unlimited	unlimited	1 × 105	1 × 108
pd-109	2 × 100	5 × 10-1	1 × 103	1 × 106
promethium (61)
pm-143	3 × 100	3 × 100	1 × 102	1 × 106
pm-144	7 × 10-1	7 × 10-1	1 × 101	1 × 106
pm-145	3 × 101	1 × 101	1 × 103	1 × 107
pm-147	4 × 101	2 × 100	1 × 104	1 × 107
pm-148m (a)	8 × 10-1	7 × 10-1	1 × 101	1 × 106
pm-149	2 × 100	6 × 10-1	1 × 103	1 × 106
pm-151	2 × 100	6 × 10-1	1 × 102	1 × 106
polonium (84)
po-210	4 × 101	2 × 10-2	1 × 101	1 × 104
praseodymium (59)
pr-142	4 × 10-1	4 × 10-1	1 × 102	1 × 105
pr-143	3 × 100	6 × 10-1	1 × 104	1 × 106
platinum (78)
pt-188 (a)	1 × 100	8 × 10-1	1 × 101	1 × 106
pt-191	4 × 100	3 × 100	1 × 102	1 × 106
pt-193	4 × 101	4 × 101	1 × 104	1 × 107
pt-193m	4 × 101	5 × 10-1	1 × 103	1 × 107
pt-195m	1 × 101	5 × 10-1	1 × 102	1 × 106
pt-197	2 × 101	6 × 10-1	1 × 103	1 × 106
pt-197m	1 × 101	6 × 10-1	1 × 102	1 × 106
plutonium (94)
pu-236	3 × 101	3 × 10-3	1 × 101	1 × 104
pu-237	2 × 101	2 × 101	1 × 103	1 × 107
pu-238	1 × 101	1 × 10-3	1 × 100	1 × 104
pu-239	1 × 101	1 × 10-3	1 × 100	1 × 104

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
pu-240	1 × 101	1 × 10-3	1 × 100	1 × 103
pu-241 (a)	4 × 101	6 × 10-2	1 × 102	1 × 105
pu-242	1 × 101	1 × 10-3	1 × 100	1 × 104
pu-244 (a)	4 × 10-1	1 × 10-3	1 × 100	1 × 104
radium (88)
ra-223 (a)	4 × 10-1	7 × 10-3	1 × 102 (b)	1 × 105 (b)
ra-224 (a)	4 × 10-1	2 × 10-2	1 × 101 (b)	1 × 105 (b)
ra-225 (a)	2 × 10-1	4 × 10-3	1 × 102	1 × 105
ra-226 (a)	2 × 10-1	3 × 10-3	1 × 101 (b)	1 × 104 (b)
ra-228 (a)	6 × 10-1	2 × 10-2	1 × 101 (b)	1 × 105 (b)
rubidium (37)
rb-81	2 × 100	8 × 10-1	1 × 101	1 × 106
rb-83 (a)	2 × 100	2 × 100	1 × 102	1 × 106
rb-84	1 × 100	1 × 100	1 × 101	1 × 106
rb-86	5 × 10-1	5 × 10-1	1 × 102	1 × 105
rb-87	unlimited	unlimited	1 × 104	1 × 107
rb(nat)	unlimited	unlimited	1 × 104	1 × 107
rhenium (75)
re-184	1 × 100	1 × 100	1 × 101	1 × 106
re-184m	3 × 100	1 × 100	1 × 102	1 × 106
re-186	2 × 100	6 × 10-1	1 × 103	1 × 106
re-187	unlimited	unlimited	1 × 106	1 × 109
re-188	4 × 10-1	4 × 10-1	1 × 102	1 × 105
re-189 (a)	3 × 100	6 × 10-1	1 × 102	1 × 106
re(nat)	unlimited	unlimited	1 × 106	1 × 109
rhodium (45)
rh-99	2 × 100	2 × 100	1 × 101	1 × 106
rh-101	4 × 100	3 × 100	1 × 102	1 × 107
rh-102	5 × 10-1	5 × 10-1	1 × 101	1 × 106
rh-102m	2 × 100	2 × 100	1 × 102	1 × 106
rh-103m	4 × 101	4 × 101	1 × 104	1 × 108
rh-105	1 × 101	8 × 10-1	1 × 102	1 × 107
radon (86)

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
rn-222 (a)	3 × 10-1	4 × 10-3	1 × 101 (b)	1 × 108 (b)
ruthenium (44)
ru-97	5 × 100	5 × 100	1 × 102	1 × 107
ru-103 (a)	2 × 100	2 × 100	1 × 102	1 × 106
ru-105	1 × 100	6 × 10-1	1 × 101	1 × 106
ru-106 (a)	2 × 10-1	2 × 10-1	1 × 102 (b)	1 × 105 (b)
sulphur (16)
s-35	4 × 101	3 × 100	1 × 105	1 × 108
antimony (51)
sb-122	4 × 10-1	4 × 10-1	1 × 102	1 × 104
sb-124	6 × 10-1	6 × 10-1	1 × 101	1 × 106
sb-125	2 × 100	1 × 100	1 × 102	1 × 106
sb-126	4 × 10-1	4 × 10-1	1 × 101	1 × 105
scandium (21)
sc-44	5 × 10-1	5 × 10-1	1 × 101	1 × 105
sc-46	5 × 10-1	5 × 10-1	1 × 101	1 × 106
sc-47	1 × 101	7 × 10-1	1 × 102	1 × 106
sc-48	3 × 10-1	3 × 10-1	1 × 101	1 × 105
selenium (34)
se-75	3 × 100	3 × 100	1 × 102	1 × 106
se-79	4 × 101	2 × 100	1 × 104	1 × 107
silicon (14)
si-31	6 × 10-1	6 × 10-1	1 × 103	1 × 106
si-32	4 × 101	5 × 10-1	1 × 103	1 × 106
samarium (62)
sm-145	1 × 101	1 × 101	1 × 102	1 × 107
sm-147	unlimited	unlimited	1 × 101	1 × 104
sm-151	4 × 101	1 × 101	1 × 104	1 × 108
sm-153	9 × 100	6 × 10-1	1 × 102	1 × 106
tin (50)
sn-113 (a)	4 × 100	2 × 100	1 × 103	1 × 107
sn-117m	7 × 100	4 × 10-1	1 × 102	1 × 106
sn-119m	4 × 101	3 × 101	1 × 103	1 × 107

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
sn-121m (a)	4 × 101	9 × 10-1	1 × 103	1 × 107
sn-123	8 × 10-1	6 × 10-1	1 × 103	1 × 106
sn-125	4 × 10-1	4 × 10-1	1 × 102	1 × 105
sn-126 (a)	6 × 10-1	4 × 10-1	1 × 101	1 × 105
strontium (38)
sr-82 (a)	2 × 10-1	2 × 10-1	1 × 101	1 × 105
sr-85	2 × 100	2 × 100	1 × 102	1 × 106
sr-85m	5 × 100	5 × 100	1 × 102	1 × 107
sr-87m	3 × 100	3 × 100	1 × 102	1 × 106
sr-89	6 × 10-1	6 × 10-1	1 × 103	1 × 106
sr-90 (a)	3 × 10-1	3 × 10-1	1 × 102 (b)	1 × 104 (b)
sr-91 (a)	3 × 10-1	3 × 10-1	1 × 101	1 × 105
sr-92 (a)	1 × 100	3 × 10-1	1 × 101	1 × 106
tritium (1)
t(h-3)	4 × 101	4 × 101	1 × 106	1 × 109
tantalum (73)
ta-178(long-lived)	1 × 100	8 × 10-1	1 × 101	1 × 106
ta-179	3 × 101	3 × 101	1 × 103	1 × 107
ta-182	9 × 10-1	5 × 10-1	1 × 101	1 × 104
terbium (65)
tb-157	4 × 101	4 × 101	1 × 104	1 × 107
tb-158	1 × 100	1 × 100	1 × 101	1 × 106
tb-160	1 × 100	6 × 10-1	1 × 101	1 × 106
technetium (43)
tc-95m (a)	2 × 100	2 × 100	1 × 101	1 × 106
tc-96	4 × 10-1	4 × 10-1	1 × 101	1 × 106
tc-96m (a)	4 × 10-1	4 × 10-1	1 × 103	1 × 107
tc-97	unlimited	unlimited	1 × 103	1 × 108
tc-97m	4 × 101	1 × 100	1 × 103	1 × 107
tc-98	8 × 10-1	7 × 10-1	1 × 101	1 × 106
tc-99	4 × 101	9 × 10-1	1 × 104	1 × 107
tc-99m	1 × 101	4 × 100	1 × 102	1 × 107
tellurium (52)

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
te-121	2 × 100	2 × 100	1 × 101	1 × 106
te-121m	5 × 100	3 × 100	1 × 102	1 × 106
te-123m	8 × 100	1 × 100	1 × 102	1 × 107
te-125m	2 × 101	9 × 10-1	1 × 103	1 × 107
te-127	2 × 101	7 × 10-1	1 × 103	1 × 106
te-127m (a)	2 × 101	5 × 10-1	1 × 103	1 × 107
te-129	7 × 10-1	6 × 10-1	1 × 102	1 × 106
te-129m (a)	8 × 10-1	4 × 10-1	1 × 103	1 × 106
te-131m (a)	7 × 10-1	5 × 10-1	1 × 101	1 × 106
te-132 (a)	5 × 10-1	4 × 10-1	1 × 102	1 × 107
thorium (90)
th-227	1 × 101	5 × 10-3	1 × 101	1 × 104
th-228 (a)	5 × 10-1	1 × 10-3	1 × 100 (b)	1 × 104 (b)
th-229	5 × 100	5 × 10-4	1 × 100 (b)	1 × 103 (b)
th-230	1 × 101	1 × 10-3	1 × 100	1 × 104
th-231	4 × 101	2 × 10-2	1 × 103	1 × 107
th-232	unlimited	unlimited	1 × 101	1 × 104
th-234 (a)	3 × 10-1	3 × 10-1	1 × 103 (b)	1 × 105 (b)
th(nat)	unlimited	unlimited	1 × 100 (b)	1 × 103 (b)
titanium (22)
ti-44 (a)	5 × 10-1	4 × 10-1	1 × 101	1 × 105
thallium (81)
tl-200	9 × 10-1	9 × 10-1	1 × 101	1 × 106
tl-201	1 × 101	4 × 100	1 × 102	1 × 106
tl-202	2 × 100	2 × 100	1 × 102	1 × 106
tl-204	1 × 101	7 × 10-1	1 × 104	1 × 104
thulium (69)
tm-167	7 × 100	8 × 10-1	1 × 102	1 × 106
tm-170	3 × 100	6 × 10-1	1 × 103	1 × 106
tm-171	4 × 101	4 × 101	1 × 104	1 × 108
uranium (92)
u-230 (fast lung absorption) (a)(d)	4 × 101	1 × 10-1	1 × 101 (b)	1 × 105 (b)
u-230 (medium lung absorption) (a)(e)	4 × 101	4 × 10-3	1 × 101	1 × 104

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
u-230 (slow lung absorption) (a)(f)	3 × 101	3 × 10-3	1 × 101	1 × 104
u-232 (fast lung absorption) (d)	4 × 101	1 × 10-2	1 × 100 (b)	1 × 103 (b)
u-232 (medium lung absorption) (e)	4 × 101	7 × 10-3	1 × 101	1 × 104
u-232 (slow lung absorption) (f)	1 × 101	1 × 10-3	1 × 101	1 × 104
u-233 (fast lung absorption) (d)	4 × 101	9 × 10-2	1 × 101	1 × 104
u-233 (medium lung absorption) (e)	4 × 101	2 × 10-2	1 × 102	1 × 105
u-233 (slow lung absorption) (f)	4 × 101	6 × 10-3	1 × 101	1 × 105
u-234 (fast lung absorption) (d)	4 × 101	9 × 10-2	1 × 101	1 × 104
u-234 (medium lung absorption) (e)	4 × 101	2 × 10-2	1 × 102	1 × 105
u-234 (slow lung absorption) (f)	4 × 101	6 × 10-3	1 × 101	1 × 105
u-235 (all lung absorption types) (a)(d)(e)(f)	unlimited	unlimited	1 × 101 (b)	1 × 104 (b)
u-236 (fast lung absorption) (d)	unlimited	unlimited	1 × 101	1 × 104
u-236 (medium lung absorption) (e)	4 × 101	2 × 10-2	1 × 102	1 × 105
u-236 (slow lung absorption) (f)	4 × 101	6 × 10-3	1 × 101	1 × 104
u-238 (all lung absorption types) (d)(e)(f)	unlimited	unlimited	1 × 101 (b)	1 × 104 (b)
u (nat)	unlimited	unlimited	1 × 100 (b)	1 × 103 (b)
u (enriched to 20% or less) (g)	unlimited	unlimited	1 × 100	1 × 103
u (dep)	unlimited	unlimited	1 × 100	1 × 103
vanadium (23)
v-48	4 × 10-1	4 × 10-1	1 × 101	1 × 105
v-49	4 × 101	4 × 101	1 × 104	1 × 107
tungsten (74)
w-178 (a)	9 × 100	5 × 100	1 × 101	1 × 106
w-181	3 × 101	3 × 101	1 × 103	1 × 107
w-185	4 × 101	8 × 10-1	1 × 104	1 × 107
w-187	2 × 100	6 × 10-1	1 × 102	1 × 106
w-188 (a)	4 × 10-1	3 × 10-1	1 × 102	1 × 105
xenon (54)
xe-122 (a)	4 × 10-1	4 × 10-1	1 × 102	1 × 109
xe-123	2 × 100	7 × 10-1	1 × 102	1 × 109
xe-127	4 × 100	2 × 100	1 × 103	1 × 105
xe-131m	4 × 101	4 × 101	1 × 104	1 × 104
xe-133	2 × 101	1 × 101	1 × 103	1 × 104

radionuclide (atomic number)	a1 (tbq)	a2 (tbq)	activity concentration limit for exempt material (bq/g)	activity limit for an exempt consignment (bq)
xe-135	3 × 100	2 × 100	1 × 103	1 × 1010
yttrium (39)
y-87 (a)	1 × 100	1 × 100	1 × 101	1 × 106
y-88	4 × 10-1	4 × 10-1	1 × 101	1 × 106
y-90	3 × 10-1	3 × 10-1	1 × 103	1 × 105
y-91	6 × 10-1	6 × 10-1	1 × 103	1 × 106
y-91m	2 × 100	2 × 100	1 × 102	1 × 106
y-92	2 × 10-1	2 × 10-1	1 × 102	1 × 105
y-93	3 × 10-1	3 × 10-1	1 × 102	1 × 105
ytterbium (70)
yb-169	4 × 100	1 × 100	1 × 102	1 × 107
yb-175	3 × 101	9 × 10-1	1 × 103	1 × 107
zinc (30)
zn-65	2 × 100	2 × 100	1 × 101	1 × 106
zn-69	3 × 100	6 × 10-1	1 × 104	1 × 106
zn-69m (a)	3 × 100	6 × 10-1	1 × 102	1 × 106
zirconium (40)
zr-88	3 × 100	3 × 100	1 × 102	1 × 106
zr-93	unlimited	unlimited	1 × 103 (b)	1 × 107 (b)
zr-95 (a)	2 × 100	8 × 10-1	1 × 101	1 × 106
zr-97 (a)	4 × 10-1	4 × 10-1	1 × 101 (b)	1 × 105 (b)

(a) a1 and/or a2 values for these parent radionuclides include contributions from their progeny

with half-lives less than 10 days, as listed in the following:

mg-28 al-28

ar-42 k-42

ca-47 sc-47

ti-44 sc-44

fe-52 mn-52m

fe-60 co-60m

zn-69m zn-69

ge-68 ga-68

rb-83 kr-83m

sr-82 rb-82

sr-90 y-90

sr-91 y-91m

sr-92 y-92

y-87 sr-87m

zr-95 nb-95m

zr-97 nb-97m, nb-97

mo-99 tc-99m

tc-95m tc-95

tc-96m tc-96

ru-103 rh-103m

ru-106 rh-106

pd-103 rh-103m

ag-108m ag-108

ag-110m ag-110

cd-115 in-115m

in-114m in-114

sn-113 in-113m

sn-121m sn-121

sn-126 sb-126m

te-118 sb-118

te-127m te-127

te-129m te-129

te-131m te-131

te-132 i-132

i-135 xe-135m

xe-122 i-122

cs-137 ba-137m

ba-131 cs-131

ba-140 la-140

ce-144 pr-144m, pr-144

pm-148m pm-148

gd-146 eu-146

dy-166 ho-166

hf-172 lu-172

w-178 ta-178

w-188 re-188

re-189 os-189m

os-194 ir-194

ir-189 os-189m

pt-188 ir-188

hg-194 au-194

hg-195m hg-195

pb-210 bi-210

pb-212 bi-212, tl-208, po-212

bi-210m tl-206

bi-212 tl-208, po-212

at-211 po-211

rn-222 po-218, pb-214, at-218, bi-214, po-214

ra-223 rn-219, po-215, pb-211, bi-211, po-211, tl-207

ra-224 rn-220, po-216, pb-212, bi-212, tl-208, po-212

ra-225 ac-225, fr-221, at-217, bi-213, tl-209, po-213, pb-209

ra-226 rn-222, po-218, pb-214, at-218, bi-214, po-214

ra-228 ac-228

ac-225 fr-221, at-217, bi-213, tl-209, po-213, pb-209

ac-227 fr-223

th-228 ra-224, rn-220, po-216, pb-212, bi-212, tl-208, po-212

th-234 pa-234m, pa-234

pa-230 ac-226, th-226, fr-222, ra-222, rn-218, po-214

u-230 th-226, ra-222, rn-218, po-214

u-235 th-231

pu-241 u-237

pu-244 u-240, np-240m

am-242m am-242, np-238

am-243 np-239

cm-247 pu-243

bk-249 am-245

cf-253 cm-249

(b) parent nuclides and their progeny included in secular equilibrium are listed in the following:

sr-90 y-90

zr-93 nb-93m

zr-97 nb-97

ru-106 rh-106

ag-108m ag-108

cs-137 ba-137m

ce-144 pr-144

ba-140 la-140

bi-212 tl-208 (0.36), po-212 (0.64)

pb-210 bi-210, po-210

pb-212 bi-212, tl-208 (0.36), po-212 (0.64)

rn-222 po-218, pb-214, bi-214, po-214

ra-223 rn-219, po-215, pb-211, bi-211, tl-207

ra-224 rn-220, po-216, pb-212, bi-212, tl-208 (0.36), po-212 (0.64)

ra-226 rn-222, po-218, pb-214, bi-214, po-214, pb-210, bi-210, po-210

ra-228 ac-228

th-228 ra-224, rn-220, po-216, pb212, bi-212, tl208 (0.36), po-212 (0.64)

th-229 ra-225, ac-225, fr-221, at-217, bi-213, po-213, pb-209

th-nat ra-228, ac-228, th-228, ra-224, rn-220, po-216, pb-212,

bi-212, l208 (0.36), po-212 (0.64)

th-234 pa-234m

u-230 th-226, ra-222, rn-218, po-214

u-232 th-228, ra-224, rn-220, po-216, pb-212, bi-212, tl-208 (0.36),

po-212 (0.64)

u-235 th-231

u-238 th-234, pa-234m

u-nat th-234, pa-234m, u-234, th-230, ra-226, rn-222, po-218, pb-214,

bi-214, po-214, pb-210, bi-210, po-210

np-237 pa-233

am-242m am-242

am-243 np-239

the radiation level at a prescribed distance from the source.

(d) these values apply only to compounds of uranium that take the chemical form of uf6, uo2f2

and uo2(no3)2 in both normal and accident conditions of carriage.

(e) these values apply only to compounds of uranium that take the chemical form of uo3, uf4,

ucl4 and hexavalent compounds in both normal and accident conditions of carriage.

(f) these values apply to all compounds of uranium other than those specified in (d) and (e)

above.

(g) these values apply to unirradiated uranium only.