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The Ionising Radiations Regulations (Northern Ireland) 2017

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This is the original version (as it was originally made).

Regulations 2(4), 6(2), 31(1), 31(3)and Schedule 1

PART 1Table of artificial radionuclides and naturally occurring radionuclides (which are processed for their radioactive, fissile or fertile properties)

123456
Radionuclide name,    symbol,    isotopeConcentration for:  Notification (any amount of radioactive material); Registration (amounts of radioactive material that exceed 1,000kg)Quantity for NotificationConcentration for Registration (amounts of radioactive material that do not exceed 1,000kg)Quantity for notification of occurrencesQuantity for notification of occurrences
Regulation 5(1) and Schedule 1, paragraph 1(a); regulation 6(2)(f)Regulation 5(1) and Schedule 1, paragraph 1(b)Regulation 6(2)(e)Regulation 31(1)Regulation 31(3)
(Bq/g)(Bq)(Bq/g)(Bq)(Bq)
(1)

Potassium salts in quantities less than 1,000kg are exempt.

Hydrogen
H-3 (tritiated compounds)10210910610121010
Beryllium
Be-7101071031012108
Carbon
C-110.01106101013107
C-11 (monoxide)0.011091010121010
C-11 (dioxide)0.011091010121010
C-1411071041011108
Oxygen
O-150.011091021010
Fluorine
F-1810106101013107
Sodium
Na-220.1106101010107
Na-240.1105101011106
Silicon
Si-311031061031013107
Phosphorus
P-321031051031010106
P-331031081051011109
Sulphur
S-351021081051011109
Chlorine
Cl-3611061041010107
Cl-3810105101013106
Argon
Ar-370.011081061013
Ar-410.01109102109
Potassium
K-40(1)11061021010107
K-421021061021012107
K-4310106101011107
Calcium
Ca-451021071041010108
Ca-4710106101011107
Scandium
Sc-460.1106101010107
Sc-471021061021011107
Sc-481105101011106
Vanadium
V-481105101010106
Chromium
Cr-511021071031012108
Manganese
Mn-5110105101013106
Mn-521105101010106
Mn-52m10105101013106
Mn-5310210910410121010
Mn-540.1106101011107
Mn-5610105101012106
Iron
Fe-52+10106101012107
Fe-551031061041011107
Fe-591106101010107
Cobalt
Co-5510106101011107
Co-560.1105101010106
Co-5711061021011107
Co-581106101010107
Co-58m1041071041013108
Co-600.1105101010106
Co-60m1031061031016107
Co-611021061021013107
Co-62m10105101013106
Nickel
Ni-591021081041011109
Ni-631021081051011109
Ni-6510106101013107
Copper
Cu-641021061021012107
Zinc
Zn-650.1106101010107
Zn-691031061041014107
Zn-69m+101061021012107
Gallium
Ga-680.01105101013106
Ga-7210105101011106
Germanium
Ge-68+0.01105101010106
Ge-711041081041013109
Arsenic
As-731031071031011108
As-7410106101011107
As-76101051021011106
As-771031061031012107
Selenium
Se-7511061021011107
Bromine
Br-821106101011107
Krypton
Kr-740.01109102109
Kr-760.011091021010
Kr-770.01109102109
Kr-790.011051031010
Kr-810.011071041011
Kr-83m0.0110121051012
Kr-850.011041051012
Kr-85m0.0110101031010
Kr-870.01109102109
Kr-880.01109102109
Rubidium
Rb-861021051021011106
Strontium
Sr-8511061021011107
Sr-85m1021071021013108
Sr-87m1021061021013107
Sr-891031061031010107
Sr-90+1104102109105
Sr-91+10105101012106
Sr-9210106101012107
Yttrium
Y-901031051031011106
Y-911021061031010107
Y-91m1021061021013107
Y-921021051021012106
Y-931021051021012106
Zirconium
Zr-93+10107103109108
Zr-95+1106101010107
Zr-97+10105101011106
Niobium
Nb-93m101071041011108
Nb-940.110610109107
Nb-951106101011107
Nb-97+10106101013107
Nb-9810105101013106
Molybdenum
Mo-9010106101012107
Mo-93101081031011109
Mo-99+101061021011107
Mo-101+10106101013107
Technetium
Tc-961106101011107
Tc-96m1031071031014108
Tc-97101081031012109
Tc-97m1021071031010108
Tc-9911071041010108
Tc-99m1021071021013108
Ruthenium
Ru-97101071021012108
Ru-103+11061021010107
Ru-105+10106101012107
Ru-106+0.1105102109106
Rhodium
Rh-103m1041081041015109
Rh-1051021071021012108
Palladium
Pd-103+1031081031011109
Pd-109+1021061031012107
Silver
Ag-10511061021011107
Ag-108m+0.1106101010107
Ag-110m+0.1106101010107
Ag-1111021061031011107
Cadmium
Cd-109+11061041010107
Cd-115+101061021011107
Cd-115m+1021061031010107
Indium
In-111101061021011107
In-113m1021061021013107
In-114m+101061021010107
In-115m1021061021013107
Tin
Sn-113+11071031011108
Sn-125101051021010106
Antimony
Sb-122101041021011105
Sb-1241106101010107
Sb-125+0.11061021010107
Tellurium
Te-123m11071021010108
Te-125m1031071031010108
Te-1271031061031012107
Te-127m+101071031010108
Te-1291021061021014107
Te-129m+101061031010107
Te-1311021051021014106
Te-131m+10106101011107
Te-132+11071021011108
Te-13310105101014106
Te-133m10105101013106
Te-13410106101013107
Iodine
I-1231021071021012108
I-1251021061031010107
I-126101061021010107
I-1290.01105102109106
I-13010106101011107
I-131101061021010107
I-13210105101012106
I-13310106101011107
I-13410105101013106
I-13510106101012107
Xenon
Xe-131m0.011041041011
Xe-1330.011041031011
Xe-1350.0110101031010
Caesium
Cs-129101051021012106
Cs-1311031061031012107
Cs-13210105101011106
Cs-1340.1104101010105
Cs-134m1031051031014106
Cs-1351021071041011108
Cs-1361105101010106
Cs-137+0.1104101010105
Cs-13810104101013105
Barium
Ba-131101061021011107
Ba-140+1105101011106
Lanthanum
La-1401105101011106
Cerium
Ce-13911061021011107
Ce-1411021071021010108
Ce-143101061021011107
Ce-144+10105102109106
Praseodymium
Pr-1421021051021012106
Pr-1431031061041011107
Neodymium
Nd-1471021061021011107
Nd-1491021061021013107
Promethium
Pm-1471031071041010108
Pm-1491031061031011107
Samarium
Sm-1511031081041010109
Sm-1531021061021011107
Europium
Eu-1520.110610109107
Eu-152m1021061021012107
Eu-1540.110610109107
Eu-15511071021010108
Gadolinium
Gd-153101071021010108
Gd-1591021061031012107
Terbium
Tb-160110611010107
Dysprosium
Dy-1651031061031013107
Dy-1661021061031011107
Holmium
Ho-1661021051031011106
Erbium
Er-1691031071041011108
Er-1711021061021012107
Thulium
Tm-1701021061031010107
Tm-1711031081041011109
Ytterbium
Yb-1751021071031011108
Lutetium
Lu-1771021071031011108
Hafnium
Hf-1811106101010107
Tantalum
Ta-1820.1104101010105
Tungsten
W-181101071031012108
W-1851031071041011108
W-187101061021012107
Rhenium
Re-1861031061031011107
Re-1881021051021012106
Osmium
Os-1851106101011107
Os-1911021071021011108
Os-191m1031071031012108
Os-1931021061021011107
Iridium
Ir-1901106101010107
Ir-1921104101010105
Ir-1941021051021011106
Platinum
Pt-191101061021011107
Pt-193m1031071031012108
Pt-197101061031012107
Pt-197m1021061021014107
Gold
Au-198101061021011107
Au-1991021061021011107
Mercury
Hg-1971021071021012108
Hg-197m1021061021012107
Hg-203101051021011106
Thallium
Tl-20010106101011107
Tl-2011021061021012107
Tl-202101061021011107
Tl-20411041041011105
Lead
Pb-203101061021012107
Pb-210+0.0110410108105
Pb-212+1105101010106
Bismuth
Bi-2061105101010106
Bi-2070.1106101010107
Bi-21010106103109107
Bi-212+1105101011106
Polonium
Po-20310106101013107
Po-20510106101012107
Po-20710106101012107
Po-2100.0110410107105
Astatine
At-2111031071031010108
Radon
Rn-220+0.01107104108108
Rn-222+0.0110810109109
Radium
Ra-223+1105102107106
Ra-224+110510108106
Ra-22510105102107106
Ra-226+0.0110410107105
Ra-2271021061021013107
Ra-228+0.0110510108106
Actinium
Ac-2281106101010107
Thorium
Th-226+1031071031011108
Th-227110410107105
Th-228+0.11041106105
Th-229+0.11031106104
Th-2300.11041106105
Th-2311021071031012108
Th-2320.0110410106105
Th-234+101051031010106
Protactinium
Pa-2301010610108107
Pa-2310.011031106104
Pa-233101071021010108
Uranium
U-230+1010510107106
U-2311021071021011108
U-232+0.11031106104
U-233110410107105
U-234110410107105
U-235+110410107105
U-2361010410107105
U-2371021061021011107
U-238+110410107105
U-2391021061021014107
U-2400.011071031012108
U-240+102106101011107
Neptunium
Np-237+11031107104
Np-2391021071021011108
Np-24010106101013107
Plutonium
Pu-2341021071021010108
Pu-2351021071021014108
Pu-236110410107105
Pu-2371021071031011108
Pu-2380.11041106105
Pu-2390.11041106105
Pu-2400.11031106104
Pu-24110105102108106
Pu-2420.11041106105
Pu-2431031071031013108
Pu-244+0.11041106105
Americium
Am-2410.11041106105
Am-2421031061031010107
Am-242m+0.11041106105
Am-243+0.11031106104
Curium
Cm-24210105102107106
Cm-24311041107105
Cm-244110410107105
Cm-2450.11031106104
Cm-2460.11031106104
Cm-247+0.11041106105
Cm-2480.11031106104
Berkelium
Bk-249102106103109107
Californium
Cf-246103106103109107
Cf-248110410107105
Cf-2490.11031106104
Cf-250110410106105
Cf-2510.11031106104
Cf-252110410107105
Cf-253102105102108106
Cf-25411031107104
Einsteinium
Es-253102105102108106
Es-254+0.110410107105
Es-254m+10106102109107
Fermium
Fm-2541041071041010108
Fm-255102106103109107
Other radionuclides not listed above (see Note 1)
0.011030.1105104

Note 1

In the case of radionuclides not specified elsewhere in this Part, the quantities specified in this entry are to be used unless the Executive has approved some other quantity for that radionuclide.

Note 2

Nuclides carrying the suffix “+” in the above table represent parent nuclides and their progeny as listed in the table below. The dose contributions for those progeny are taken into account in the dose calculation (thus requiring only the exemption level of the parent radionuclide to be considered).

List of parent nuclides and their progeny as referred to in Note 2 above

Parent radionuclideProgeny
Fe-52Mn-52m
Zn-69mZn-69
Ge-68Ga-68
Sr-90Y-90
Sr-91Y-91m
Zr-93Nb-93m
Zr-95Nb-95
Zr-97Nb-97m, Nb-97
Nb-97Nb-97m
Mo-99Tc-99m
Mo-101Tc-101
Ru-103Rh-103m
Ru-105Rh-105m
Ru-106Rh-106
Pd-103Rh-103m
Pd-109Ag-109m
Ag-108mAg-108
Ag-110mAg-110
Cd-109Ag-109m
Cd-115In-115m
Cd-115mIn-115m
In-114mIn-114
Sn-113In-113m
Sb-125Te-125m
Te-127mTe-127
Te-129mTe-129
Te-131mTe-131
Te-132I-132
Cs-137Ba-137m
Ba-140La-140
Ce-144Pr-144, Pr-144m
Pb-210Bi-210, Po-210
Pb-212Bi-212, Ti-208, Po-212
Bi-212Ti-208, Po-212
Rn-220Po-216
Rn-222Po-218, Pb-214, Bi-214, Po-214
Ra-223Rn-219, Po-215, Pb-211, Bi-211, Ti-207
Ra-224Rn-220, Po-216, Pb-212, Bi-212, Ti-208, Po-212
Ra-226Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210
Ra-228Ac-228
Th-226Ra-222, Rn-218, Po-214
Th-228Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Ti-208, Po-212
Th-229Ra-225, Ac-225, Fr-221, At-217, Bi-213, Po-213, Pb-209
Th-234Pa-234m
U-230Th-226, Ra-222, Rn-218, Po-214
U-232Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Ti-208, Po-212
U-235Th-231
U-238Th-234, Pa-234m
U-240Np-240m, Np-240
Np-237Pa-233
Pu-244U-240, Np-240m, Np-240
Am-242mAm-242, Np-238
Am-243Np-239
Cm-247Pu-243
Es-254Bk-250
Es-254mFm-254

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