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[F1ANNEX IU.K.

CATEGORY 0 – NUCLEAR MATERIALS, FACILITIES, AND EQUIPMENTU.K.

[0C] MaterialsU.K.

[0C001] "Natural uranium" or "depleted uranium" or thorium in the form of metal, alloy, chemical compound or concentrate and any other material containing one or more of the foregoing;

Note:0C001 does not control the following:U.K.
a.

Four grammes or less of "natural uranium" or "depleted uranium" when contained in a sensing component in instruments;

b.

"Depleted uranium" specially fabricated for the following civil non-nuclear applications:

1.

Shielding;

2.

Packaging;

3.

Ballasts having a mass not greater than 100 kg;

4.

Counter-weights having a mass not greater than 100 kg;

c.

Alloys containing less than 5 % thorium;

d.

Ceramic products containing thorium, which have been manufactured for non-nuclear use.

[0C002] "Special fissile materials"

Note:0C002 does not control four "effective grammes" or less when contained in a sensing component in instruments.U.K.

[0C003] Deuterium, heavy water (deuterium oxide) and other compounds of deuterium, and mixtures and solutions containing deuterium, in which the isotopic ratio of deuterium to hydrogen exceeds 1:5 000.

[0C004] Graphite having a purity level better than 5 parts per million ‘boron equivalent’ and with a density greater than 1,50 g/cm3 for use in a "nuclear reactor", in quantities exceeding 1 kg.

NB:SEE ALSO 1C107.U.K.
Note 1:For the purpose of export control, the [F2 Secretary of State] will determine whether or not the exports of graphite meeting the above specifications are for "nuclear reactor" use. 0C004 does not control graphite having a purity level better than 5 ppm (parts per million) boron equivalent and with a density greater than 1,50 g/cm3 not for use in a "nuclear reactor".U.K.

Textual Amendments

Note 2:In 0C004, ‘boron equivalent’ (BE) is defined as the sum of BEz for impurities (excluding BEcarbon since carbon is not considered an impurity) including boron, where:U.K.

BEZ (ppm) = CF × concentration of element Z in ppm;

and σΒ and σΖ are the thermal neutron capture cross sections (in barns) for naturally occurring boron and element Z respectively; and AB and AZ are the atomic masses of naturally occurring boron and element Z respectively.

[0C005] Specially prepared compounds or powders for the manufacture of gaseous diffusion barriers, resistant to corrosion by UF6 (e.g. nickel or alloys containing 60 % by weight or more nickel, aluminium oxide and fully fluorinated hydrocarbon polymers), having a purity of 99,9 % by weight or more and a particle size less than 10 μm measured by ASTM B330 standard and a high degree of particle size uniformity.]