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Chapter GROUP 2A

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

Atomic Energy Minerals and Materials

A1

Special and other fissile materials

C

except–

  • (1) when contained in a sensing component or instrument, up to three effective grammes;

  • (2) when contained in heart pacemakers.

In this entry–

  • “special fissile materials” means plutonium-239, uranium-233, uranium enriched in the isotopes 235 or 233, and any material containing the foregoing;

  • “uranium enriched in the isotopes 235 or 233” means uranium containing the isotopes 235 or 233, or both, in an amount such that the abundance ratio of the sum of these isotopes to the isotope 238 is more than the ratio of the isotope 235 to the isotope 238 occurring in nature (isotopic ratio 0.72 per cent);

  • “other fissile materials” means previously separated americium-242m, curium-245 and -247, californium-249 and -251, neptunium-237, isotopes of plutonium other than -239 and any material containing the foregoing;

  • “effective gramme” of special or other fissile material means

  • (a) for plutonium isotopes and uranium-233, the isotope weight in grammes;

  • (b) for uranium enriched 1 per cent or greater in the isotope U-235, the element weight in grammes multiplied by the square of its enrichment expressed as a decimal weight fraction;

  • (c) for uranium enriched below 1 per cent in the isotope U-235, the element weight in grammes multiplied by 0.0001;

  • (d) for americium-242m, curium-245 and -247, californium-249 and -251 and neptunium-237, the isotope weight in grammes multiplied by 10;

  • “previously separated” means the application of any process intended to increase the concentration of the controlled isotope.

A2

Natural and depleted uranium, in any form, or incorporated in any substance in which the concentration of uranium exceeds 0.05%, by weight

C

In this entry–

  • “natural uranium” means uranium containing the mixtures of isotopes occurring in nature.

  • “depleted uranium” means uranium depleted in the isotope 235 below that occurring in nature.

PL6001

Source material, the following–

Thorium, in any form, or incorporated in any substance in which the concentration of thorium exceeds 0.05%

C

except alloys containing less than 5% thorium.

A3

Deuterium, heavy water, deuterated paraffins, and simple or complex lithium deuterides, and mixtures and solutions containing deuterium, in which the isotopic ratio of deuterium to hydrogen exceeds 1:5,000

C

PL6012

Compounds of deuterium

C

A4

Zirconium metal, alloys containing more than 50% zirconium by weight, compounds in which the ratio of hafnium content to zirconium content is less than one part to five hundred parts by weight, and goods composed wholly of any such metal, alloy or compound

C

except–

Zirconium in the form of foil or strip having a thickness not exceeding 0.01 mm.

A5

Nickel powder and porous nickel metal, the following–

  • (a) Powder with a nickel content of 99% or more and a mean particle size of less than 100 micrometres, whether compacted or not

C

  • (b) Porous nickel metal material produced from materials specified in head (a) above except single porous nickel metal sheets not exceeding 930 cm2 intended for use in batteries for civil applications

C

PL6011

Graphite, nuclear-grade, having a purity level of less than 5 parts per million boron equivalent and with a density greater than 1.5 gcm3

C

A7

Lithium, the following–

  • (a) Lithium metal, and hydrides and alloys containing lithium enriched in the lithium-6 isotope to a concentration higher than 7.5% on an atom percentage basis

C

  • (b) Any other materials containing lithium enriched in the 6 isotope (including compounds, mixtures and concentrates)

C

except–

lithium enriched in the 6 isotope incorporated in thermoluminescent dosimeters.

A8

Hafnium, the following–

Hafnium metal, and alloys and compounds of hafnium containing more than 60% hafnium by weight, in crude, fabricated or semi-fabricated form

C

A9

Beryllium, the following–

  • (a) Beryllium and alloys containing more than 50 per cent of beryllium, in crude or semi-fabricated forms

C

  • (b) Beryllium compounds

C

  • (c) Manufactures of any of the foregoing except metal windows for medicalX-ray machines and oxide shapes in fabricated or semi-fabricated forms specially designed for electronic component parts or as substrates for electronic circuits

C

PL6002

Fluorine

C

PL6003

Chlorine trifluoride

C

A12

Tritium, and compounds and mixtures containing tritium in which the ratio of tritium to hydrogen by atoms exceeds 1 part in 1,000, and products containing one or more of the foregoing

C

except

  • (i) labelled compounds not exceeding 100 curies activity (in this exception “labelled compounds” means compounds in which one of the atoms is a different isotope from that found normally);

  • (ii) tritium contained in luminous paint, self-luminous products, gas and aerosol detectors, electron tubes, lighting or static elimination devices, ion generating tubes, detector cells of gas chromatography devices, and calibration standards;

  • (iii) compounds and mixtures of tritium, where the separation of the consitutents cannot result in the evolution of an isotopic mixture of hydrogen in which the ratio of tritium to hydrogen by atoms exceeds 1 part in 1,000.

A14

Specially designed or prepared materials for the separation of isotopes of natural uranium, depleted uranium and special and other fissile materials, including specially designed chemical exchange resins

C

Note 1: see entries A1 and A2 in this Group for the special and other fissile materials to which this entry refers.

Note 2: for isotopic separation plants, see the entry in Group 2B relating thereto.

A15

Wet proofed platinised catalysts specially designed or prepared for promoting hydrogen isotope exchange between hydrogen and water for the recovery of tritium from heavy water or for heavy water production

C

PL6005

Calcium containing less than 100 parts per million by weight of impurities other than magnesium and less than 10 parts per million by weight of boron

C

PL6006

Alloys containing a higher percentage of magnesium than of any other element and 10% or more of lithium

C

PL6014

UF6-resistant fully fluorinated hydrocarbon polymers specially prepared for the manufacture of gaseous diffusion barriers, having a purity of 99.9 per cent or more, a particle size less than 10 microns and a high degree of particle size uniformity

C