N.H. Code Admin. R. He-P 4093.01 – Exempt Concentrations

This part establishes limits of radioactive isotopes in gas, liquid, and solid concentrations which shall be exempt from He-P 4000 as specified in Table 4093.1 below:

Table 4093.1 Exempt Concentrations

Element

(Atomic Number)

Radionuclide

Column 1

Gas

Concentration

mCi/ml¹

Column 2

Liquid and Solid

Concentration

mCi/ml²

Antimony (51)

Sb-122

Sb-124

Sb-125

3´10^-4

2´10^-4

1´10^-3

Argon (18)

Ar-37

Ar-41

1´10^-3

4´10^-7

Arsenic (33)

As-73

As-74

As-76

As-77

5´10^-3

5´10^-4

2´10^-4

8´10^-4

Barium (56)

Ba-131

Ba-140

2´10^-3

3´10^-4

Beryllium (4)

Be-7

2´10^-2

Bismuth (83)

Bi-206

4´10^-4

Bromine (35)

Br-82

4´10^-7

3´10^-3

Cadmium (48)

Cd-109

Cd-115m

Cd-115

2´10^-3

3´10^-4

Calcium (20)

Ca-45

Ca-47

9´10^-5

5´10^-4

Carbon (6)

C-14

1´10^-6

8´10^-3

Cerium (58)

Ce-141

Ce-143

Ce-144

9´10^-4

4´10^-4

1´10^-4

Cesium (55)

Cs-131

Cs-134m

Cs-134

2´10^-2

6´10^-2

9´10^-5

Chlorine (17)

Cl-38

9´10^-7

4´10^-3

Chromium (24)

Cr-51

2´10^-2

Cobalt (27)

Co-57

Co-58

Co-60

5´10^-3

1´10^-3

5´10^-4

Copper (29)

Cu-64

3´10^-3

Dysprosium (66)

Dy-165

Dy-166

4´10^-3

4´10^-4

Erbium (68)

Er-169

Er-171

9´10^-4

1´10^-3

Europium (63)

Eu-152

(9.2 h)

Eu-155

6´10^-4

2´10^-3

Fluorine (9)

F-18

2´10^-6

8´10^-3

Gadolinium (64)

Gd-153

Gd-159

2´10^-3

8´10^-4

Gallium (31)

Ga-72

4´10^-4

Germanium (32)

Ge-71

2´10^-2

Gold (79)

Au-196

Au-198

Au-199

2´10^-3

5´10^-4

2´10^-3

Hafnium (72)

Hf-181

7´10^-4

Hydrogen (1)

H-3

5´10^-6

3´10^-2

Indium (49)

In-113m

In-114m

1´10^-2

2´10^-4

Iodine (53)

I-126

I-131

I-132

I-133

I-134

3´10^-9

8´10^-8

1´10^-8

2´10^-7

2´10^-5

6´10^-4

7´10^-5

1´10^-3

Iridium (77)

Ir-190

Ir-192

Ir-194

2´10^-3

4´10^-4

3´10^-4

Iron (26)

Fe-55

Fe-59

8´10^-3

6´10^-4

Krypton (36)

Kr-85m

Kr-85

1´10^-6

3´10^-6

Lanthanum (57)

La-140

2´10^-4

Lead (82)

Pb-203

4´10^-3

Lutetium (71)

Lu-177

1´10^-3

Manganese (25)

Mn-52

Mn-54

Mn-56

3´10^-4

1´10^-3

Mercury (80)

Hg-197m

Hg-197

Hg-203

2´10^-3

3´10^-3

2´10^-4

Molybdenum (42)

Mo-99

2´10^-3

Neodymium (60)

Nd-147

Nd-149

6´10^-4

3´10^-3

Nickel (28)

Ni-65

1´10^-3

Niobium (Columbium) (41)

Nb-95

Nb-97

1´10^-3

9´10^-3

Osmium (76)

Os-185

Os-191m

Os-191

Os-193

7´10^-4

3´10^-2

2´10^-3

6´10^-4

Palladium (46)

Pd-103

Pd-109

3´10^-3

9´10^-4

Phosphorus (15)

P-32

2´10^-4

Platinum (78)

Pt-191

Pt-193m

Pt-197m

Pt-197

1´10^-3

1´10^-2

1´10^-3

Potassium (19)

K-42

3´10^-3

Praseodymium (59)

Pr-142

Pr-143

3´10^-4

5´10^-4

Promethium (61)

Pm-147

Pm-149

2´10^-3

4´10^-4

Rhenium (75)

Re-183

Re-186

Re-188

6´10^-3

9´10^-4

6´10^-4

Rhodium (45)

Rh-103m

Rh-105

1´10^-1

1´10^-3

Rubidium (37)

Rb-86

7´10^-4

Ruthenium (44)

Ru-97

Ru-103

Ru-105

Ru-106

4´10^-4

8´10^-4

1´10^-3

1´10^-4

Samarium (62)

Sm-153

8´10^-4

Scandium (21)

Sc-46

Sc-47

Sc-48

4´10^-4

9´10^-4

3´10^-4

Selenium (34)

Se-75

3´10^-3

Silicon (14)

Si-31

9´10^-3

Silver (47)

Ag-105

Ag-110m

Ag-111

1´10^-3

3´10^-4

4´10^-4

Sodium (11)

Na-24

2´10^-3

Strontium (38)

Sr-85

Sr-89

Sr-91

Sr-92

1´10^-4

7´10^-4

Sulfur (16)

S-35

9´10^-8

6´10^-4

Tantalum (73)

Ta-182

4´10^-4

Technetium (43)

Tc-96m

Tc-96

1´10^-1

1´10^-3

Tellurium (52)

Te-125m

Te-127m

Te-127

Te-129m

Te-131m

Te-132

2´10^-3

6´10^-4

3´10^-3

3´10^-4

6´10^-4

3´10^-4

Terbium(65)

Tb-160

4x10^-4

Thallium (81)

Tl-200

Tl-201

Tl-202

Tl-204

4´10^-3

3´10^-3

1´10^-3

Thulium (69)

Tm-170

Tm-171

5´10^-4

5´10^-3

Tin (50)

Sn-113

Sn-125

9´10^-4

2´10^-4

Tungsten (Wolfram) (74)

W-181

W-187

4´10^-3

7´10^-4

Vanadium (23)

V-48

3´10^-4

Xenon (54)

Xe-131m

Xe-133

Xe-135

4´10^-6

3´10^-6

1´10^-6

Ytterbium (70)

Yb-175

1´10^-3

Yttrium (39)

Y-90

Y-91m

Y-91

Y-92

Y-93

2´10^-4

3´10^-2

3´10^-4

6´10^-4

3´10^-4

Zinc (30)

Zn-65

Zn-69m

Zn-69

1´10^-3

7´10^-4

2´10^-2

Zirconium (40)

Zr-95

Zr-97

6´10^-4

2´10^-4

Beta- and/or gamma-emitting

byproduct material not listed above with half-life of less than 3 years.

1´10^-10

1´10^-6

Note 1: Many radionuclides transform into other radionuclides. In expressing the concentrations in He‑P 4093 Table 4093.1, the activity stated is that of the parent radionuclide and takes into account the radioactive decay products.

Note 2: Where there is involved a combination of radionuclides, the limit for the combination should be derived as follows: Determine for each radionuclide in the product the ratio between the radioactivity concentration present in the product and the exempt radioactivity concentration established in He‑P 4093 Table 4093.1 for the specific radionuclide when not in combination. The sum of such ratios may not exceed “1”.

Example:

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Note 3: To convert mCi/ml to SI units of megabecquerels per liter, multiply the above values by 37.

Example: Zirconium (40) Zr-97

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Source. (See Revision Note at part heading for He-P 4093) #6942, eff 2-1-99; ss by #8800, eff 2-1-07, EXPIRED: 7-31-07 New. #8959, eff 8-7-07; ss by #10938, eff 9-22-15