Table of available nuclides and maximum quantities
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nuclide	physical condition	annual usage MBq	quarter usage MBq	daily maximum usage MBq	service space
3H	3	1,000,000	500,000	10,000	A, B
3H	2	200,000	100,000	2,000	C
7Be	2	50	25	0.5	A, B, C
11C	3	4,000	2,000	160	A, B, C
13N	3	1,000	500	80	A, B, C
14C	3	5,000	2,500	50	A, B, C
18F	2	32,000	16,000	740	A, B, C
22Na	2	50	25	0.5	A, B, C
24Na	2	20	10	0.2	A, B, C
32P	3	20,000	10,000	200	A, B
32P	2	5,000	2,500	50	C
33P	3	5,000	2,500	50	A, B, C
35S	3	20,000	10,000	200	A, B, C
36Cl	2	50	25	0.5	A, B, C
42K	2	20	10	0.2	A, B, C
45Ca	2	5,000	2,500	50	A, B, C
46Sc	2	20	10	0.2	A, B, C
51Cr	2	10,000	5,000	100	A, B, C
52Mn	2	20	10	0.2	A, B, C
54Mn	2	20	10	0.2	A, B, C
55Fe	2	50	25	0.5	A, B, C
59Fe	2	50	25	0.5	A, B, C
56Co	2	20	10	0.2	A, B, C
57Co	2	20	10	0.2	A, B, C
58Co	2	20	10	0.2	A, B, C
60Co	2	50	25	0.5	A, B, C
63Ni	2	50	25	0.5	A, B, C
62Cu	2	1,000	500	80	A, B, C
64Cu	2	1,000	500	200	A, B, C
67Cu	2	50	25	0.5	A, B, C
65Zn	2	20	10	0.2	A, B, C
67Ga	2	10,000	5,000	400	A, B, C
68Ge	2	20	10	0.2	A, B, C
68Ge-68Ga	2	16,000	8,000	400	A, B, C
68Ga	2	16,000	8,000	400	A, B, C
68Ge-68Ga	2	16,000	8,000	400	A, B, C
68Ga	2	16,000	8,000	400	A, B, C
75Se	2	20	10	0.2	A, B, C
76As	2	20	10	0.2	A, B, C
82Br	2	50	25	0.5	A, B, C
85Kr	1	20	10	0.2	A, B
82Rb	2	1,000	500	80	A, B, C
85Rb	2	20	10	0.2	A, B, C
85Sr	2	50	25	0.5	A, B, C
89Sr	2	50	25	0.5	A, B, C
90Sr	2	50	25	0.5	A
88Y	2	20	10	0.2	A, B, C
90Y	2	50	25	0.5	A, B, C
91Y	2	20	10	0.2	A, B, C
95Nb	2	20	10	0.2	A, B, C
95Zr	2	20	10	0.2	A, B, C
99Mb-99mTc	2	160,000	80,000	2,000	A, B, C
99mTc	2	160,000	80,000	2,000	A, B, C
103Ru	2	20	10	0.2	A, B, C
105Ru	2	20	10	0.2	A, B, C
106Ru	2	20	10	0.2	A, B, C
109Cd	2	20	10	0.2	A, B, C
110mAg	2	20	10	0.2	A, B, C
111In	2	6,000	3,000	360	A, B, C
113Sn	2	20	10	0.2	A, B, C
115mCd	2	20	10	0.2	A, B, C
119mSn	2	20	10	0.2	A, B, C
124Sb	2	20	10	0.2	A, B, C
123I	2	8,000	4,000	480	A, B, C
124I	2	8,000	2,500	400	A, B
124I	2	2,000	1,000	200	C
125I	2	10,000	5,000	100	A, B
125I	2	2,000	1,000	20	C
131I	2	1,000	500	40	A, B, C
133Xe	1	50	25	0.5	A, B
134Cs	2	20	10	0.2	A, B, C
137Cs	2	20	10	0.2	A, B, C
133Ba	2	20	10	0.2	A, B, C
140Ba	2	20	10	0.2	A, B, C
140La	2	20	10	0.2	A, B, C
139Ce	2	20	10	0.2	A, B, C
141Ce	2	20	10	0.2	A, B, C
144Ce	2	20	10	0.2	A, B, C
147Pm	2	20	10	0.2	A, B, C
152Eu	2	20	10	0.2	A, B, C
153Gd	2	20	10	0.2	A, B, C
192Ir	2	20	10	0.2	A, B, C
194Ir	2	20	10	0.2	A, B, C
196Au	2	100	50	1	A, B, C
203Hg	2	20	10	0.2	A, B, C
201Tl	2	60,000	30,000	600	A, B, C
204Tl	2	20	10	0.2	A, B, C
226Ra	2	40	10	0.2	A

（1）Physical states are labeled as follows

１：Gas
２：Liquid / Solid
３：Gas / liquid / solid

（2）Rooms for using nuclides are labeled as follows

A：High-level laboratory
B：¹⁴C-³H laboratory, ¹⁴C-³H measurement room, chemistry laboratory, gamma-ray laboratory,
　　liquid laboratory, gamma-ray measurement room, biochemistry laboratory-1, biochemistry,
　　laboratory-2, biophysics laboratory, biology laboratory, laboratory for instructors, RI irradiation room
C：Sample preparation room, analysis and measurement laboratory, test analysis room,
　　preparation room

The maximum quantities per day, per three months, and per year of ¹²⁵I, ³²P, and ³H used in class A and B rooms include those used in class C rooms. The quantities of ¹²⁵I, ³²P, and ³H used throughout the Institute should be less than the maximum quantities of the nuclides in class A and B rooms.

The maximum quantities of nuclides in class D rooms (radio-gas chromatography room, dark room) are specified separately.

（3）Administration of RIs to experimental animals and handling of gaseous
　　 RI compounds

１：Administration of RIs to experimental animals and handling of gaseous RI compounds are allowed
　　only in class A and B rooms.
２：⁹⁰Sr, ²²⁶Ra, ⁶⁰Co, ¹⁰⁶Ru, ¹⁴⁴Ce, and ¹⁵²Eu should not be administered to animals. ⁸⁵Kr and
　　¹³³Xe are completely gaseous and should not be administered to animals.

The upper limits of total quantities of nuclides, other than those listed above, allowed to be administered to experimental animals and gaseous RI compounds are as follows.

（１）¹²⁴I: 1/2 of the maximum quantity per day, 1/5 of the maximum quantity per three months,
　　　1/5 of the maximum quantity per year

（２）¹³¹I: 1/5 of the maximum quantity per day, 1/5 of the maximum quantity per three months,
　　　1/5 of the maximum quantity per year

（３）⁴⁵Ca, ¹²⁵I, ³²P, ³³P, ³⁵S, ³H, and ¹⁴C: 1/200 of the maximum quantity per day, 1/200 of the
　　　 maximum quantity per three months, 1/200 of the maximum quantity per year

（４）Other nuclides: 1/10 of the maximum quantity per day, 1/10 of the maximum quantity per three
　　　 months, 1/10 of the maximum quantity per year