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2.2.7.2.2

Determination of basic radionuclide values

2.2.7.2.2.1

The following basic values for individual radionuclides are given in Table 2.2.7.2.2.1:

(a) A1and A2in TBq;

(b) Activity concentration limits for exempt material in Bq/g; and

(c) Activity limits for exempt consignments in Bq.

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 foranexempt consignment

(Bq)

Actinium (89)

        

Ac-225 (a)

8 x 10-1

6 x 10-3

1 x 101

1 x 104

Ac-227 (a)

9 x 10-1

9 x 10-5

1 x 10-1

1 x 103

Ac-228

6 x 10-1

5 x 10-1

1 x 101

1 x 106

Silver (47)

        

Ag-105

2 x 100

2 x 100

1 x 102

1 x 106

Ag-108m (a)

7 x 10-1

7 x10-1

1 x101 (b)

1 x 106 (b)

Ag-110m (a)

4 x 10-1

4 x 10-1

1 x 101

1 x 106

Ag-111

2 x 100

6 x 10-1

1 x 103

1 x 106

Aluminium (13)

        

Al-26

1 x 10-1

1 x 10-1

1 x 101

1 x 105

Americium (95)

        

Am-241

1 x 101

1 x 10-3

1 x 100

1 x 104

Am-242m (a)

1 x 101

1 x 10-3

1 x 100 (b)

1 x 104 (b)

Am-243 (a)

5 x 100

1 x 10-3

1 x 100 (b)

1 x 103 (b)

Argon (18)

        

Ar-37

4 x 101

4 x 101

1 x 106

1 x 108

Ar-39

4 x 101

2 x 101

1 x 107

1 x 104

Ar-41

3 x 10-1

3 x 10-1

1 x 102

1 x 109

Arsenic (33)

        

As-72

3 x 10-1

3 x 10-1

1 x 101

1 x 105

As-73

4 x 101

4 x 101

1 x 103

1 x 107

As-74

1 x 100

9 x 10-1

1 x 101

1 x 106

As-76

3 x 10-1

3 x 10-1

1 x 102

1 x 105

As-77

2 x 101

7 x 10-1

1 x 103

1 x 106

Astatine (85)

        

At-211 (a)

2 x 101

5 x 10-1

1 x 103

1 x 107

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Gold (79)

        

Au-193

7 x 100

2 x 100

1 x 102

1 x 107

Au-194

1 x 100

1 x 100

1 x 101

1 x 106

Au-195

1 x 101

6 x 100

1 x 102

1 x 107

Au-198

1 x 100

6 x 10-1

1 x 102

1 x 106

Au-199

1 x 101

6 x 10-1

1 x 102

1 x 106

Barium (56)

        

Ba-131 (a)

2 x 100

2 x 100

1 x 102

1 x 106

Ba-133

3 x 100

3 x 100

1 x 102

1 x 106

Ba-133m

2 x 101

6 x 10-1

1 x 102

1 x 106

Ba-140 (a)

5 x 10-1

3 x 10-1

1 x 101 (b)

1 x 105 (b)

Beryllium (4)

        

Be-7

2 x 101

2 x 101

1 x 103

1 x 107

Be-10

4 x 101

6 x 10-1

1 x 104

1 x 106

Bismuth (83)

        

Bi-205

7 x 10-1

7 x 10-1

1 x 101

1 x 106

Bi-206

3 x 10-1

3 x 10-1

1 x 101

1 x 105

Bi-207

7 x 10-1

7 x 10-1

1 x 101

1 x 106

Bi-210

1 x 100

6 x 10-1

1 x 103

1 x 106

Bi-210m (a)

6 x 10-1

2 x 10-2

1 x 101

1 x 105

Bi-212 (a)

7 x 10-1

6 x 10-1

1 x 101 (b)

1 x 105 (b)

Berkelium (97)

        

Bk-247

8 x 100

8 x 10-4

1 x 100

1 x 104

Bk-249 (a)

4 x 101

3 x 10-1

1 x 103

1 x 106

Bromine (35)

        

Br-76

4 x 10-1

4 x 10-1

1 x 101

1 x 105

Br-77

3 x 100

3 x 100

1 x 102

1 x 106

Br-82

4 x 10-1

4 x 10-1

1 x 101

1 x 106

Carbon (6)

        

C-11

1 x 100

6 x 10-1

1 x 101

1 x 106

C-14

4 x 101

3 x 100

1 x 104

1 x 107

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Calcium (20)

        

Ca-41

Unlimited

Unlimited

1 x 105

1 x 107

Ca-45

4 x 101

1 x 100

1 x 104

1 x 107

Ca-47 (a)

3 x 100

3 x 10-1

1 x 101

1 x 106

Cadmium (48)

        

Cd-109

3 x 101

2 x 100

1 x 104

1 x 106

Cd-113m

4 x 101

5 x 10-1

1 x 103

1 x 106

Cd-115 (a)

3 x 100

4 x 10-1

1 x 102

1 x 106

Cd-115m

5 x 10-1

5 x 10-1

1 x 103

1 x 106

Cerium (58)

        

Ce-139

7 x 100

2 x 100

1 x 102

1 x 106

Ce-141

2 x 101

6 x 10-1

1 x 102

1 x 107

Ce-143

9 x 10-1

6 x 10-1

1 x 102

1 x 106

Ce-144 (a)

2 x 10-1

2 x 10-1

1 x 102 (b)

1 x 105 (b)

Californium (98)

        

Cf-248

4 x 101

6 x 10-3

1 x 101

1 x 104

Cf-249

3 x 100

8 x 10-4

1 x 100

1 x 103

Cf-250

2 x 101

2 x 10-3

1 x 101

1 x 104

Cf-251

7 x 100

7 x 10-4

1 x 100

1 x 103

Cf-252

1 x 10-1

3 x 10-3

1 x 101

1 x 104

Cf-253 (a)

4 x 101

4 x 10-2

1 x 102

1 x 105

Cf-254

1 x 10-3

1 x 10-3

1 x 100

1 x 103

Chlorine (17)

        

Cl-36

1 x 101

6 x 10-1

1 x 104

1 x 106

Cl-38

2 x 10-1

2 x 10-1

1 x 101

1 x 105

Curium (96)

        

Cm-240

4 x 101

2 x 10-2

1 x 102

1 x 105

Cm-241

2 x 100

1 x 100

1 x 102

1 x 106

Cm-242

4 x 101

1 x 10-2

1 x 102

1 x 105

Cm-243

9 x 100

1 x 10-3

1 x 100

1 x 104

Cm-244

2 x 101

2 x 10-3

1 x 101

1 x 104

Cm-245

9 x 100

9 x 10-4

1 x 100

1 x 103

Cm-246

9 x 100

9 x 10-4

1 x 100

1 x 103

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Cm-247 (a)

3 x 100

1 x 10-3

1 x 100

1 x 104

Cm-248

2 x 10-2

3 x 10-4

1 x 100

1 x 103

Cobalt (27)

        

Co-55

5 x 10-1

5 x 10-1

1 x 101

1 x 106

Co-56

3 x 10-1

3 x 10-1

1 x 101

1 x 105

Co-57

1 x 101

1 x 101

1 x 102

1 x 106

Co-58

1 x 100

1 x 100

1 x 101

1 x 106

Co-58m

4 x 101

4 x 101

1 x 104

1 x 107

Co-60

4 x 10-1

4 x 10-1

1 x 101

1 x 105

Chromium (24)

        

Cr-51

3 x 101

3 x 101

1 x 103

1 x 107

Caesium (55)

        

Cs-129

4 x 100

4 x 100

1 x 102

1 x 105

Cs-131

3 x 101

3 x 101

1 x 103

1 x 106

Cs-132

1 x 100

1 x 100

1 x 101

1 x 105

Cs-134

7 x 10-1

7 x 10-1

1 x 101

1 x 104

Cs-134m

4 x 101

6 x 10-1

1 x 103

1 x 105

Cs-135

4 x 101

1 x 100

1 x 104

1 x 107

Cs-136

5 x 10-1

5 x 10-1

1 x 101

1 x 105

Cs-137 (a)

2 x 100

6 x 10-1

1 x 101 (b)

1 x 104 (b)

Copper (29)

        

Cu-64

6 x 100

1 x 100

1 x 102

1 x 106

Cu-67

1 x 101

7 x 10-1

1 x 102

1 x 106

Dysprosium (66)

        

Dy-159

2 x 101

2 x 101

1 x 103

1 x 107

Dy-165

9 x 10-1

6 x 10-1

1 x 103

1 x 106

Dy-166 (a)

9 x 10-1

3 x 10-1

1 x 103

1 x 106

Erbium (68)

        

Er-169

4 x 101

1 x 100

1 x 104

1 x 107

Er-171

8 x 10-1

5 x 10-1

1 x 102

1 x 106

Europium (63)

        

Eu-147

2 x 100

2 x 100

1 x 102

1 x 106

Eu-148

5 x 10-1

5 x 10-1

1 x 101

1 x 106

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Eu-149

2 x 101

2 x 101

1 x 102

1 x 107

Eu-150 (short lived)

2 x 100

7 x 10-1

1 x 103

1 x 106

Eu-150 (long lived)

7 x 10-1

7 x 10-1

1 x 101

1 x 106

Eu-152

1 x 100

1 x 100

1 x 101

1 x 106

Eu-152m

8 x 10-1

8 x 10-1

1 x 102

1 x 106

Eu-154

9 x 10-1

6 x 10-1

1 x 101

1 x 106

Eu-155

2 x 101

3 x 100

1 x 102

1 x 107

Eu-156

7 x 10-1

7 x 10-1

1 x 101

1 x 106

Fluorine (9)

        

F-18

1 x 100

6 x 10-1

1 x 101

1 x 106

Iron (26)

        

Fe-52 (a)

3 x 10-1

3 x 10-1

1 x 101

1 x 106

Fe-55

4 x 101

4 x 101

1 x 104

1 x 106

Fe-59

9 x 10-1

9 x 10-1

1 x 101

1 x 106

Fe-60 (a)

4 x 101

2 x 10-1

1 x 102

1 x 105

Gallium(31)

        

Ga-67

7 x 100

3 x 100

1 x 102

1 x 106

Ga-68

5 x 10-1

5 x 10-1

1 x 101

1 x 105

Ga-72

4 x 10-1

4 x 10-1

1 x 101

1 x 105

Gadolinium (64)

        

Gd-146 (a)

5 x 10-1

5 x 10-1

1 x 101

1 x 106

Gd-148

2 x 101

2 x 10-3

1 x 101

1 x 104

Gd-153

1 x 101

9 x 100

1 x 102

1 x 107

Gd-159

3 x 100

6 x 10-1

1 x 103

1 x 106

Germanium (32)

        

Ge-68 (a)

5 x 10-1

5 x 10-1

1 x 101

1 x 105

Ge-71

4 x 101

4 x 101

1 x 104

1 x 108

Ge-77

3 x 10-1

3 x 10-1

1 x 101

1 x 105

Hafnium (72)

        

Hf-172 (a)

6 x 10-1

6 x 10-1

1 x 101

1 x 106

Hf-175

3 x 100

3 x 100

1 x 102

1 x 106

Hf-181

2 x 100

5 x 10-1

1 x 101

1 x 106

Hf-182

Unlimited

Unlimited

1 x 102

1 x 106

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Mercury (80)

        

Hg-194 (a)

1 x 100

1 x 100

1 x 101

1 x 106

Hg-195m (a)

3 x 100

7 x 10-1

1 x 102

1 x 106

Hg-197

2 x 101

1 x 101

1 x 102

1 x 107

Hg-197m

1 x 101

4 x 10-1

1 x 102

1 x 106

Hg-203

5 x 100

1 x 100

1 x 102

1 x 105

Holmium (67)

        

Ho-166

4 x 10-1

4 x 10-1

1 x 103

1 x 105

Ho-166m

6 x 10-1

5 x 10-1

1 x 101

1 x 106

Iodine (53)

        

I-123

6 x 100

3 x 100

1 x 102

1 x 107

I-124

1 x 100

1 x 100

1 x 101

1 x 106

I-125

2 x 101

3 x 100

1 x 103

1 x 106

I-126

2 x 100

1 x 100

1 x 102

1 x 106

I-129

Unlimited

Unlimited

1 x102

1 x 105

I-131

3 x 100

7 x 10-1

1 x 102

1 x 106

I-132

4 x 10-1

4 x 10-1

1 x 101

1 x 105

I-133

7 x 10-1

6 x 10-1

1 x 101

1 x 106

I-134

3 x 10-1

3 x 10-1

1 x 101

1 x 105

I-135 (a)

6 x 10-1

6 x 10-1

1 x 101

1 x 106

Indium (49)

        

In-111

3 x 100

3 x 100

1 x 102

1 x 106

In-113m

4 x 100

2 x 100

1 x 102

1 x 106

In-114m (a)

1 x 101

5 x 10-1

1 x 102

1 x 106

In-115m

7 x 100

1 x 100

1 x 102

1 x 106

Iridium (77)

        

Ir-189 (a)

1 x 101

1 x 101

1 x 102

1 x 107

Ir-190

7 x 10-1

7 x 10-1

1 x 101

1 x 106

Ir-192

1 x 100(c)

6 x 10-1

1 x 101

1 x 104

Ir-194

3 x 10-1

3 x 10-1

1 x 102

1 x 105

Potassium (19)

        

K-40

9 x 10-1

9 x 10-1

1 x 102

1 x 106

K-42

2 x 10-1

2 x 10-1

1 x 102

1 x 106

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

K-43

7 x 10-1

6 x 10-1

1 x 101

1 x 106

Krypton (36)

        

Kr-79

4 x 100

2 x 100

1 x 103

1 x 105

Kr-81

4 x 101

4 x 101

1 x 104

1 x 107

Kr-85

1 x 101

1 x 101

1 x 105

1 x 104

Kr-85m

8 x 100

3 x 100

1 x 103

1 x 1010

Kr-87

2 x 10-1

2 x 10-1

1 x 102

1 x 109

Lanthanum (57)

        

La-137

3 x 101

6 x 100

1 x 103

1 x 107

La-140

4 x 10-1

4 x 10-1

1 x 101

1 x 105

Lutetium (71)

        

Lu-172

6 x 10-1

6 x 10-1

1 x 101

1 x 106

Lu-173

8 x 100

8 x 100

1 x 102

1 x 107

Lu-174

9 x 100

9 x 100

1 x 102

1 x 107

Lu-174m

2 x 101

1 x 101

1 x 102

1 x 107

Lu-177

3 x 101

7 x 10-1

1 x 103

1 x 107

Magnesium (12)

        

Mg-28 (a)

3 x 10-1

3 x 10-1

1 x 101

1 x 105

Manganese (25)

        

Mn-52

3 x 10-1

3 x 10-1

1 x 101

1 x 105

Mn-53

Unlimited

Unlimited

1 x 104

1 x 109

Mn-54

1 x 100

1 x 100

1 x 101

1 x 106

Mn-56

3 x 10-1

3 x 10-1

1 x 101

1 x 105

Molybdenum (42)

        

Mo-93

4 x 101

2 x 101

1 x 103

1 x 108

Mo-99 (a)

1 x 100

6 x 10-1

1 x 102

1 x 106

Nitrogen (7)

        

N-13

9 x 10-1

6 x 10-1

1 x 102

1 x 109

Sodium (11)

        

Na-22

5 x 10-1

5 x 10-1

1 x 101

1 x 106

Na-24

2 x 10-1

2 x 10-1

1 x 101

1 x 105

Niobium (41)

        

Nb-93m

4 x 101

3 x 101

1 x 104

1 x 107

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Nb-94

7 x 10-1

7 x 10-1

1 x 101

1 x 106

Nb-95

1 x 100

1 x 100

1 x 101

1 x 106

Nb-97

9 x 10-1

6 x 10-1

1 x 101

1 x 106

Neodymium (60)

        

Nd-147

6 x 100

6 x 10-1

1 x 102

1 x 106

Nd-149

6 x 10-1

5 x 10-1

1 x 102

1 x 106

Nickel (28)

        

Ni-59

Unlimited

Unlimited

1 x 104

1 x 108

Ni-63

4 x 101

3 x 101

1 x 105

1 x 108

Ni-65

4 x 10-1

4 x 10-1

1 x 101

1 x 106

Neptunium (93)

        

Np-235

4 x 101

4 x 101

1 x 103

1 x 107

Np-236 (short lived)

2 x 101

2 x 100

1 x 103

1 x 107

Np-236 (short lived)

9 x 100

2 x 10-2

1 x 102

1 x 105

Np-237

2 x 101

2 x 10-3

1 x 100 (b)

1 x 103 (b)

Np-239

7 x 100

4 x 10-1

1 x 102

1 x 107

Osmium (76)

        

Os-185

1 x 100

1 x 100

1 x 101

1 x 106

Os-191

1 x 101

2 x 100

1 x 102

1 x 107

Os-191m

4 x 101

3 x 101

1 x 103

1 x 107

Os-193

2 x 100

6 x 10-1

1 x 102

1 x 106

Os-194 (a)

3 x 10-1

3 x 10-1

1 x 102

1 x 105

Phosphorus (15)

        

P-32

5 x 10-1

5 x 10-1

1 x 103

1 x 105

P-33

4 x 101

1 x 100

1 x 105

1 x 108

Protactinium (91)

        

Pa-230 (a)

2 x 100

7 x 10-2

1 x 101

1 x 106

Pa-231

4 x 100

4 x 10-4

1 x 100

1 x 103

Pa-233

5 x 100

7 x 10-1

1 x 102

1 x 107

Lead (82)

        

Pb-201

1 x 100

1 x 100

1 x 101

1 x 106

Pb-202

4 x 101

2 x 101

1 x 103

1 x 106

Pb-203

4 x 100

3 x 100

1 x 102

1 x 106

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Pb-205

Unlimited

Unlimited

1 x 104

1 x 107

Pb-210 (a)

1 x 100

5 x 10-2

1 x 101 (b)

1 x 104 (b)

Pb-212 (a)

7 x 10-1

2 x 10-1

1 x 101 (b)

1 x 105 (b)

Palladium (46)

        

Pd-103 (a)

4 x 101

4 x 101

1 x 103

1 x 108

Pd-107

Unlimited

Unlimited

1 x 105

1 x 108

Pd-109

2 x 100

5 x 10-1

1 x 103

1 x 106

Promethium (61)

        

Pm-143

3 x 100

3 x 100

1 x 102

1 x 106

Pm-144

7 x 10-1

7 x 10-1

1 x 101

1 x 106

Pm-145

3 x 101

1 x 101

1 x 103

1 x 107

Pm-147

4 x 101

2 x 100

1 x 104

1 x 107

Pm-148m (a)

8 x 10-1

7 x 10-1

1 x 101

1 x 106

Pm-149

2 x 100

6 x 10-1

1 x 103

1 x 106

Pm-151

2 x 100

6 x 10-1

1 x 102

1 x 106

Polonium (84)

        

Po-210

4 x 101

2 x 10-2

1 x 101

1 x 104

Praseodymium (59)

        

Pr-142

4 x 10-1

4 x 10-1

1 x 102

1 x 105

Pr-143

3 x 100

6 x 10-1

1 x 104

1 x 106

Platinum (78)

        

Pt-188 (a)

1 x 100

8 x 10-1

1 x 101

1 x 106

Pt-191

4 x 100

3 x 100

1 x 102

1 x 106

Pt-193

4 x 101

4 x 101

1 x 104

1 x 107

Pt-193m

4 x 101

5 x 10-1

1 x 103

1 x 107

Pt-195m

1 x 101

5 x 10-1

1 x 102

1 x 106

Pt-197

2 x 101

6 x 10-1

1 x 103

1 x 106

Pt-197m

1 x 101

6 x 10-1

1 x 102

1 x 106

Plutonium (94)

        

Pu-236

3 x 101

3 x 10-3

1 x 101

1 x 104

Pu-237

2 x 101

2 x 101

1 x 103

1 x 107

Pu-238

1 x 101

1 x 10-3

1 x 100

1 x 104

Pu-239

1 x 101

1 x 10-3

1 x 100

1 x 104

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Pu-240

1 x 101

1 x 10-3

1 x 100

1 x 103

Pu-241 (a)

4 x 101

6 x 10-2

1 x 102

1 x 105

Pu-242

1 x 101

1 x 10-3

1 x 100

1 x 104

Pu-244 (a)

4 x 10-1

1 x 10-3

1 x 100

1 x 104

Radium (88)

        

Ra-223 (a)

4 x 10-1

7 x 10-3

1 x 102 (b)

1 x 105 (b)

Ra-224 (a)

4 x 10-1

2 x 10-2

1 x 101 (b)

1 x 105 (b)

Ra-225 (a)

2 x 10-1

4 x 10-3

1 x 102

1 x 105

Ra-226 (a)

2 x 10-1

3 x 10-3

1 x 101 (b)

1 x 104 (b)

Ra-228 (a)

6 x 10-1

2 x 10-2

1 x 101 (b)

1 x 105 (b)

Rubidium (37)

        

Rb-81

2 x 100

8 x 10-1

1 x 101

1 x 106

Rb-83 (a)

2 x 100

2 x 100

1 x 102

1 x 106

Rb-84

1 x 100

1 x 100

1 x 101

1 x 106

Rb-86

5 x 10-1

5 x 10-1

1 x 102

1 x 105

Rb-87

Unlimited

Unlimited

1 x 104

1 x 107

Rb (nat)

Unlimited

Unlimited

1 x 104

1 x 107

Rhenium (75)

        

Re-184

1 x 100

1 x 100

1 x 101

1 x 106

Re-184m

3 x 100

1 x 100

1 x 102

1 x 106

Re-186

2 x 100

6 x 10-1

1 x 103

1 x 106

Re-187

Unlimited

Unlimited

1 x 106

1 x 109

Re-188

4 x 10-1

4 x 10-1

1 x 102

1 x 105

Re-189 (a)

3 x 100

6 x 10-1

1 x 102

1 x 106

Re (nat)

Unlimited

Unlimited

1 x 106

1 x 109

Rhodium (45)

        

Rh-99

2 x 100

2 x 100

1 x 101

1 x 106

Rh-101

4 x 100

3 x 100

1 x 102

1 x 107

Rh-102

5 x 10-1

5 x 10-1

1 x 101

1 x 106

Rh-102m

2 x 100

2 x 100

1 x 102

1 x 106

Rh-103m

4 x 101

4 x 101

1 x 104

1 x 108

Rh-105

1 x 101

8 x 10-1

1 x 102

1 x 107

Radon (86)

        

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Rn-222 (a)

3 x 10-1

4 x 10-3

1 x 101 (b)

1 x 108 (b)

Ruthenium (44)

        

Ru-97

5 x 100

5 x 100

1 x 102

1 x 107

Ru-103 (a)

2 x 100

2 x 100

1 x 102

1 x 106

Ru-105

1 x 100

6 x 10-1

1 x 101

1 x 106

Ru-106 (a)

2 x 10-1

2 x 10-1

1 x 102 (b)

1 x 105 (b)

Sulphur (16)

        

S-35

4 x 101

3 x 100

1 x 105

1 x 108

Antimony (51)

        

Sb-122

4 x 10-1

4 x 10-1

1 x 102

1 x 104

Sb-124

6 x 10-1

6 x 10-1

1 x 101

1 x 106

Sb-125

2 x 100

1 x 100

1 x 102

1 x 106

Sb-126

4 x 10-1

4 x 10-1

1 x 101

1 x 105

Scandium (21)

        

Sc-44

5 x 10-1

5 x 10-1

1 x 101

1 x 105

Sc-46

5 x 10-1

5 x 10-1

1 x 101

1 x 106

Sc-47

1 x 101

7 x 10-1

1 x 102

1 x 106

Sc-48

3 x 10-1

3 x 10-1

1 x 101

1 x 105

Selenium (34)

        

Se-75

3 x 100

3 x 100

1 x 102

1 x 106

Se-79

4 x 101

2 x 100

1 x 104

1 x 107

Silicon (14)

        

Si-31

6 x 10-1

6 x 10-1

1 x 103

1 x 106

Si-32

4 x 101

5 x 10-1

1 x 103

1 x 106

Samarium (62)

        

Sm-145

1 x 101

1 x 101

1 x 102

1 x 107

Sm-147

Unlimited

Unlimited

1 x 101

1 x 104

Sm-151

4 x 101

1 x 101

1 x 104

1 x 108

Sm-153

9 x 100

6 x 10-1

1 x 102

1 x 106

Tin (50)

        

Sn-113 (a)

4 x 100

2 x 100

1 x 103

1 x 107

Sn-117m

7 x 100

4 x 10-1

1 x 102

1 x 106

Sn-119m

4 x 101

3 x 101

1 x 103

1 x 107

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Sn-121m (a)

4 x 101

9 x 10-1

1 x 103

1 x 107

Sn-123

8 x 10-1

6 x 10-1

1 x 103

1 x 106

Sn-125

4 x 10-1

4 x 10-1

1 x 102

1 x 105

Sn-126 (a)

6 x 10-1

4 x 10-1

1 x 101

1 x 105

Strontium (38)

        

Sr-82 (a)

2 x 10-1

2 x 10-1

1 x 101

1 x 105

Sr-85

2 x 100

2 x 100

1 x 102

1 x 106

Sr-85m

5 x 100

5 x 100

1 x 102

1 x 107

Sr-87m

3 x 100

3 x 100

1 x 102

1 x 106

Sr-89

6 x 10-1

6 x 10-1

1 x 103

1 x 106

Sr-90 (a)

3 x 10-1

3 x 10-1

1 x 102 (b)

1 x 104 (b)

Sr-91 (a)

3 x 10-1

3 x 10-1

1 x 101

1 x 105

Sr-92 (a)

1 x 100

3 x 10-1

1 x 101

1 x 106

Tritium (1)

        

T (H-3)

4 x 101

4 x 101

1 x 106

1 x 109

Tantalum (73)

        

Ta-178 (long-lived)

1 x 100

8 x 10-1

1 x 101

1 x 106

Ta-179

3 x 101

3 x 101

1 x 103

1 x 107

Ta-182

9 x 10-1

5 x 10-1

1 x 101

1 x 104

Terbium (65)

        

Tb-157

4 x 101

4 x 101

1 x 104

1 x 107

Tb-158

1 x 100

1 x 100

1 x 101

1 x 106

Tb-160

1 x 100

6 x 10-1

1 x 101

1 x 106

Technetium (43)

        

Tc-95m (a)

2 x 100

2 x 100

1 x 101

1 x 106

Tc-96

4 x 10-1

4 x 10-1

1 x 101

1 x 106

Tc-96m (a)

4 x 10-1

4 x 10-1

1 x 103

1 x 107

Tc-97

Unlimited

Unlimited

1 x 103

1 x 108

Tc-97m

4 x 101

1 x 100

1 x 103

1 x 107

Tc-98

8 x 10-1

7 x 10-1

1 x 101

1 x 106

Tc-99

4 x 101

9 x 10-1

1 x 104

1 x 107

Tc-99m

1 x 101

4 x 100

1 x 102

1 x 107

Tellurium (52)

        

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Te-121

2 x 100

2 x 100

1 x 101

1 x 106

Te-121m

5 x 100

3 x 100

1 x 102

1 x 106

Te-123m

8 x 100

1 x 100

1 x 102

1 x 107

Te-125m

2 x 101

9 x 10-1

1 x 103

1 x 107

Te-127

2 x 101

7 x 10-1

1 x 103

1 x 106

Te-127m (a)

2 x 101

5 x 10-1

1 x 103

1 x 107

Te-129

7 x 10-1

6 x 10-1

1 x 102

1 x 106

Te-129m (a)

8 x 10-1

4 x 10-1

1 x 103

1 x 106

Te-131m (a)

7 x 10-1

5 x 10-1

1 x 101

1 x 106

Te-132 (a)

5 x 10-1

4 x 10-1

1 x 102

1 x 107

Thorium (90)

        

Th-227

1 x 101

5 x 10-3

1 x 101

1 x 104

Th-228 (a)

5 x 10-1

1 x 10-3

1 x 100 (b)

1 x 104 (b)

Th-229

5 x 100

5 x 10-4

1 x 100 (b)

1 x 103 (b)

Th-230

1 x 101

1 x 10-3

1 x 100

1 x 104

Th-231

4 x 101

2 x 10-2

1 x 103

1 x 107

Th-232

Unlimited

Unlimited

1 x 101

1 x 104

Th-234 (a)

3 x 10-1

3 x 10-1

1 x 103 (b)

1 x 105 (b)

Th (nat)

Unlimited

Unlimited

1 x 100 (b)

1 x 103 (b)

Titanium (22)

        

Ti-44 (a)

5 x 10-1

4 x 10-1

1 x 101

1 x 105

Thallium (81)

        

Tl-200

9 x 10-1

9 x 10-1

1 x 101

1 x 106

Tl-201

1 x 101

4 x 100

1 x 102

1 x 106

Tl-202

2 x 100

2 x 100

1 x 102

1 x 106

Tl-204

1 x 101

7 x 10-1

1 x 104

1 x 104

Thulium (69)

        

Tm-167

7 x 100

8 x 10-1

1 x 102

1 x 106

Tm-170

3 x 100

6 x 10-1

1 x 103

1 x 106

Tm-171

4 x 101

4 x 101

1 x 104

1 x 108

Uranium (92)

        

U-230 (fast lung absorption) (a)(d)

4 x 101

1 x 10-1

1 x 101 (b)

1 x 105 (b)

U-230 (medium lung absorption) (a)(e)

4 x 101

4 x 10-3

1 x 101

1 x 104

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

U-230 (slow lung absorption)) (a)(f)

3 x 101

3 x 10-3

1 x 101

1 x 104

U-232 (fast lung absorption) (d)

4 x 101

1 x 10-2

1 x 100 (b)

1 x 103 (b)

U-232 (medium lung absorption) (e)

4 x 101

7 x 10-3

1 x 101

1 x 104

U-232 (slow lung absorption)) (f)

1 x 101

1 x 10-3

1 x 101

1 x 104

U-233 (fast lung absorption) (d)

4 x 101

9 x 10-2

1 x 101

1 x 104

U-233 (medium lung absorption) (e)

4 x 101

2 x 10-2

1 x 102

1 x 105

U-233 (slow lung absorption)) (f)

4 x 101

6 x 10-3

1 x 101

1 x 105

U-234 (fast lung absorption) (d)

4 x 101

9 x 10-2

1 x 101

1 x 104

U-234 (medium lung absorption) (e)

4 x 101

2 x 10-2

1 x 102

1 x 105

U-234 (slow lung absorption)) (f)

4 x 101

6 x 10-3

1 x 101

1 x 105

U-235 (all lung absorption types) (a)(d)(e)(f)

Unlimited

Unlimited

1 x 101 (b)

1 x 104 (b)

U-236 (fast lung absorption) (d)

Unlimited

Unlimited

1 x 101

1 x 104

U-236 (medium lung absorption) (e)

4 x 101

2 x 10-2

1 x 102

1 x 105

U-236 (slow lung absorption)) (f)

4 x 101

6 x 10-3

1 x 101

1 x 104

U-238 (all lung absorption types) (d)(e)(f)

Unlimited

Unlimited

1 x 101 (b)

1 x 104 (b)

U (nat)

Unlimited

Unlimited

1 x 100 (b)

1 x 103 (b)

U (enriched to 20% or less) (g)

Unlimited

Unlimited

1 x 100

1 x 103

U (dep)

Unlimited

Unlimited

1 x 100

1 x 103

Vanadium (23)

        

V-48

4 x 10-1

4 x 10-1

1 x 101

1 x 105

V-49

4 x 101

4 x 101

1 x 104

1 x 107

Tungsten (74)

        

W-178 (a)

9 x 100

5 x 100

1 x 101

1 x 106

W-181

3 x 101

3 x 101

1 x 103

1 x 107

W-185

4 x 101

8 x 10-1

1 x 104

1 x 107

W-187

2 x 100

6 x 10-1

1 x 102

1 x 106

W-188 (a)

4 x 10-1

3 x 10-1

1 x 102

1 x 105

Xenon (54)

        

Xe-122 (a)

4 x 10-1

4 x 10-1

1 x 102

1 x 109

Xe-123

2 x 100

7 x 10-1

1 x 102

1 x 109

Xe-127

4 x 100

2 x 100

1 x 103

1 x 105

Xe-131m

4 x 101

4 x 101

1 x 104

1 x 104

Xe-133

2 x 101

1 x 101

1 x 103

1 x 104

Radionuclide

(atomic number)

A1

(TBq)

A2

(TBq)

Activity concentration limit for exempt material

(Bq/g)

Activity limit foranexempt consignment

(Bq)

Xe-135

3 x 100

2 x 100

1 x 103

1 x 1010

Yttrium (39)

        

Y-87 (a)

1 x 100

1 x 100

1 x 101

1 x 106

Y-88

4 x 10-1

4 x 10-1

1 x 101

1 x 106

Y-90

3 x 10-1

3 x 10-1

1 x 103

1 x 105

Y-91

6 x 10-1

6 x 10-1

1 x 103

1 x 106

Y-91m

2 x 100

2 x 100

1 x 102

1 x 106

Y-92

2 x 10-1

2 x 10-1

1 x 102

1 x 105

Y-93

3 x 10-1

3 x 10-1

1 x 102

1 x 105

Ytterbium (70)

        

Yb-169

4 x 100

1 x 100

1 x 102

1 x 107

Yb-175

3 x 101

9 x 10-1

1 x 103

1 x 107

Zinc (30)

        

Zn-65

2 x 100

2 x 100

1 x 101

1 x 106

Zn-69

3 x 100

6 x 10-1

1 x 104

1 x 106

Zn-69m (a)

3 x 100

6 x 10-1

1 x 102

1 x 106

Zirconium (40)

        

Zr-88

3 x 100

3 x 100

1 x 102

1 x 106

Zr-93

Unlimited

Unlimited

1 x 103 (b)

1 x 107 (b)

Zr-95 (a)

2 x 100

8 x 10-1

1 x 101

1 x 106

Zr-97 (a)

4 x 10-1

4 x 10-1

1 x 101 (b)

1 x 105 (b)

(a)A1and/or A2values for these parent radionuclides include contributions from their progenywith half-lives less than10 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

(c) The quantity may be determined from a measurement of the rate of decay or a measurement ofthe 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, UO2F2and UO2(NO3)2in both normal and accident conditions of carriage.

(e)These values apply only to compounds of uranium that take the chemical form of UO3, UF4,UCl4and 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.

2.2.7.2.2.2

For individual radionuclides:

(a) Which are not listed in Table 2.2.7.2.2.1 the determination of the basic radionuclide valuesreferred to in 2.2.7.2.2.1 shall require multilateral approval. For these radionuclides, activityconcentration limits for exempt material and activity limits for exempt consignments shall becalculated in accordance with the principles established in the International Basic SafetyStandards for Protection against Ionizing Radiation and for the Safety of Radiation Sources,Safety Series No.115, IAEA, Vienna (1996). It is permissible to use an A2value calculatedusing a dose coefficient for the appropriate lung absorption type as recommended by theInternational Commission on Radiological Protection, if the chemical forms of eachradionuclide under both normal and accident conditions of carriage are taken intoconsideration. Alternatively, the radionuclide values in Table2.2.7.2.2.2 may be used withoutobtaining competent authority approval;

(b) In instruments or articles in which the radioactive material is enclosed or is included as acomponent part of the instrument or other manufactured article and which meet 2.2.7.2.4.1.3(c), alternative basicradionuclide values to those in Table 2.2.7.2.2.1 for the activity limit foran exempt consignment are permitted and shall require multilateral approval. Such alternativeactivity limits for an exempt consignment shall be calculated in accordance with theprinciplesset out in the International Basic Safety Standards for Protection against Ionizing Radiation andfor the Safety of Radiation Sources, Safety Series No.115, IAEA, Vienna (1996).

Table 2.2.7.2.2.2: Basic radionuclide values for unknown radionuclides or mixtures

Radioactive contents

A1

A2

Activity
concentration
limit for exempt material

Activity
limit for exempt
consignments

(TBq)

(TBq)

(Bq/g)

(Bq)

Only beta or gamma emitting nuclides are known to be present

0,1

0,02

1 x 101

1 x 104

Alpha emitting nuclides but no neutron emitters are known to be present

0,2

9 x 10-5

1 x 10-1

1 x 103

Neutron emitting nuclides are known to be present or no relevant data are available

0,001

   9 x 10-5

1 x 10-1

1 x 103

2.2.7.2.2.3

In the calculations of A1and A2for a radionuclide not in Table2.2.7.2.2.1, a single radioactive decay chain in which the radionuclides are present in their naturally occurring proportions, and in which no daughter nuclide has a half-life either longer than 10 days or longer than that of the parent nuclide, shall be considered as a single radionuclide; and the activity to be taken into account and the A1or A2value to be applied shall be those corresponding to the parent nuclide of that chain. In the case of radioactive decay chains in which any daughter nuclide has a half-life either longer than 10 days or greater than that of the parent nuclide, the parent and such daughter nuclides shall be considered as mixtures of different nuclides.

2.2.7.2.2.4

For mixtures of radionuclides, the basic radionuclide values referred to in2.2.7.2.2.1 may be determined as follows:

where,  

f(i) is the fraction of activity or activity concentration of radionuclide i in the mixture;

X(i) is the appropriate value of A1or A2, or the activity concentration limitfor exempt material or the activity limit for an exempt consignment as appropriate for the radionuclide i; and

Xm is the derived value of A1or A2, or the activity concentration limitfor exempt material or the activity limit for an exempt consignment in the case of a mixture.

2.2.7.2.2.5

When the identity of each radionuclide is known but the individual activities of some of the radionuclides are not known, the radionuclides may be grouped and the lowest radionuclide value, as appropriate, for the radionuclides in each group may be used in applying the formulas in 2.2.7.2.2.4 and 2.2.7.2.4.4. Groups may be based on the total alpha activity and the total beta/gamma activity when these are known, using the lowest radionuclide values for the alpha emitters or beta/gamma emitters, respectively.

2.2.7.2.2.6

For individual radionuclides or for mixtures of radionuclides for which relevant data are not available, the values shown in Table 2.2.7.2.2.2 shall be used.

2.2.7.2.3

Determination of other material characteristics

2.2.7.2.3.1

Low specific activity (LSA) material

2.2.7.2.3.1.1

(Reserved)

2.2.7.2.3.1.2

LSA material shall be in one of three groups:

(a)LSA-I

(i)uranium and thorium ores and concentrates of such ores, and other ores containingnaturally occurring radionuclides;

(ii)natural uranium, depleted uranium, natural thorium or their compounds or mixtures, thatare unirradiated and in solid or liquid form;

(iii)radioactive material for which the A2value is unlimited. Fissile material may beincluded only if excepted under 2.2.7.2.3.5;

(iv)other radioactive material in which the activity is distributed throughout and theestimated average specific activity does not exceed 30 times the values for activityconcentration specified in 2.2.7.2.2.1 to2.2.7.2.2.6.Fissile material may be includedonly if excepted under 2.2.7.2.3.5;

(b)LSA-II

(i)water with tritium concentration up to 0.8 TBq/l;

(ii)other material in which the activity is distributed throughout and the estimated averagespecific activity does not exceed 10-4 A2/g for solids and gases, and 10-5 A2/g forliquids;

(c)LSA-III- Solids (e.g. consolidated wastes, activated materials), excluding powders, that meetthe requirementsof 2.2.7.2.3.1.3,in which:

(i)the radioactive material is distributed throughout a solid or a collection of solid objects,or is essentially uniformly distributed in a solid compact binding agent (such asconcrete, bitumen and ceramic);

(ii)the radioactive material is relatively insoluble, or it is intrinsically contained in arelatively insoluble matrix, so that, even under loss of packaging, the loss of radioactivematerial per package by leaching when placed in water for seven days would not exceed0.1 A2; and

(iii)the estimated average specific activity of the solid, excluding any shielding material,does not exceed 2×10-3 A2/g.

2.2.7.2.3.1.3

LSA-III material shall be a solid of such a nature that if the entire contents of a package were subjected to the test specified in 2.2.7.2.3.1.4 the activity in the water would not exceed 0.1 A2.

2.2.7.2.3.1.4

LSA-III material shall be tested as follows:

A solid material sample representing the entire contents of the package shall be immersed for 7days in water at ambient temperature. The volume of water to be used in the test shall be sufficient to ensure that at the end of the7 day test period the free volume of the unabsorbed and unreacted water remaining shall be at least 10% of the volume of the solid test sample itself. The water shall have an initial pH of 6-8 and a maximum conductivity of 1mS/m at 20°C. The total activity of the free volume of water shall be measured following the 7 day immersion of the test sample.

2.2.7.2.3.1.5

Demonstration of compliance with the performance standards in2.2.7.2.3.1.4 shallbe in accordance with6.4.12.1 and 6.4.12.2.

2.2.7.2.3.2

Surface contaminated object (SCO)

SCO is classified in one of two groups:

(a)SCO-I: A solid object on which:

(i)the non-fixed contamination on the accessible surface averaged over 300cm2(or thearea of the surface if less than 300 cm2) does not exceed 4Bq/cm2for beta and gammaemitters and low toxicity alpha emitters, or 0.4 Bq/cm2for all other alpha emitters; and

(ii)the fixed contamination on the accessible surface averaged over 300cm2(or the area ofthe surface if less than 300 cm2) does not exceed 4 ×104Bq/cm2for beta and gammaemitters and low toxicity alpha emitters, or 4 ×103Bq/cm2for all other alpha emitters;and

(iii)the non-fixed contamination plus the fixed contamination on the inaccessible surfaceaveraged over 300 cm2(or the area of the surface if less than 300 cm2) does not exceed4 ×104Bq/cm2for beta and gamma emitters and low toxicity alpha emitters, or4 ×103Bq/cm2for all other alpha emitters;

(b)SCO-II: A solid object on which either the fixed or non-fixed contamination on the surfaceexceeds the applicable limits specified for SCO-I in (a) above and on which:

(i)the non-fixed contamination on the accessible surface averaged over 300cm2(or thearea of the surface if less than 300 cm2) does not exceed 400Bq/cm2for beta andgamma emitters and low toxicity alpha emitters, or 40 Bq/cm2for all other alphaemitters; and

(ii)the fixed contamination on the accessible surface, averaged over 300cm2(or the area ofthe surface if less than 300 cm2) does not exceed 8 ×105Bq/cm2for beta and gammaemitters and low toxicity alpha emitters, or 8×104Bq/cm2for all other alpha emitters;and

(iii)the non-fixed contamination plus the fixed contamination on the inaccessible surfaceaveraged over 300 cm2(or the area of the surface if less than 300 cm2) does not exceed8 ×105Bq/cm2for beta and gamma emitters and low toxicity alpha emitters, or8 ×104Bq/cm2for all other alpha emitters.

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