14
13. Self-contained diving and underwater swimming apparatus, as follows:
(a) Closed and semi-closed circuit (rebreathing) apparatus;
(b) Specially designed components for use in the convertion of open cimui!'
apparatus to military use;
(e) Articles exclusively designed for military use with self-contained diving
and underwater swimming apparatus,
14. Power controlled searchlights and control units therefor, designed terl
military use.
15. Specialized military training equipment:
(a) Specialized military training equipment;
(5) Components, parts, attachments, and accessories specifically designed to i
such equipment.
16. Climatic conditioning chambers capable of simulating any of the following conditions over the whole range of altitudes from sea level to 75,000 Beec or above: temperature, pressure, radiation, or humidity,
17. Machinery and machine tools and apparatus specially designed or adapte for the production, testing research into and development of any of ke items specified in this Group.
GROUP M.
ATOMIC ENERGY MATERIALS AND APPLIANCES,
1. Source (fertile) and fissionable materials, including but not limited to the
following eight items;
(a) Minerals, raw and treated (including residues and tailings) which coolin either uranium or thorium or any combination thereof, exceeding 005 per cent by weight, as follows:
(1) Ores containing uranium including pitchblende,
(2) Monazite and monazite sands:
(3) Ores containing borium including uranothorianite:
(b) Natural uranium, uowrought or wrought, including alloys and cor
pounds of natural uranium, having an uranium content exceeding 0:0 per cent, excepting medicinals,
(c) Uranium 233, alloys containing uranium 233 and compounds of urdium
233;
(d) Uranium enriched in the isotope 295, alloys containing uranium enriched in the isotope 235, and compounds of uranium enriched in the isotopć 235;
(e) Irradiated uranium containing plutonium;
(†) Plutonium, alloys containing plutonium and compounds containing
plutonium;
(g) Thorium, vowrought or wrought, and alloys and compounds contaiong Thorium, excluding alloys containing less than 1.5 per cent of thorium by weight and except medicinals;
(5) Irradiated thorium containing uranium 233.
IS
1. Deuterium and compounds, mixtures and solutions containing deuterium, including heavy water and heavy paraffins, in which the ratio of deuterium atoms to hydrogen atoms exceeds 1:5,000 by number.
1. Tetrafluoroethylene, polymerized or not; and manufactures wholly thereof.
4. Triquorochloroethylene, polymerized or not; and manufactures wholly
thereof.
$. Zirconium metal, alloys containing more than 50 per cent zirconium by
weight, and compounds, in which the ratio of hafnium content to zirconium content is less than one part to five hundred parts by weight; and manu- factures wholly thereof.
6. Nickel wire containing 95 per cent or more nickel, 0.10 mm. or less in
diameter.
7. Woven wire mesh composed of wire containing 95 per cent or more nickel
sad coqlaining 60 or more wires per linear centimetre.
8. Nickel powder,
9. Beryllium metal (excluding beryllium windows for medical X-ray machines); beryl (excluding gem grado) and ores; alloys containing more than 50 per vent beryllium by weight, oxides and compounds.
10. Materials suitable for use in refractories, composed of 97 per ccat or more by weight of beryllium oxide, magnesium oxide, or zirconium oxide, or composed of zirconium oxide stabilized with lime and/or magnesium oxide: and crucibles, moulds, and pouring rods composed of any one of the foregoing.
IL Fluorice.
12. Chlorine tritiuoride.
11. Fluorinated hydrocarbons, as follows:
Trichlorotrifluoroethane:
Dichlorotetrafluoroethane; Monochlorodifluoromethane.
14. Equipment specifically designed for the separation of isotopes of uranium
and/or lithium.
15. Dosimeters capable of measuring in ons exposure dosages above 5 roentgens excepting those designed specifically for use with medical radiation equipment.
H. Ion separators, electromagnetic, including mass spectrographs and masa spectrometers, with analyzer assemblies capable of handling uranium hexa- Buoride spectrographs, of high sensitivity.
17. Positive ion sources suitable for use in mass spectrographs and mass spectro-
meters and capable of handling uranium hexafluoride (UF 6).
18, Valves, with bellows seal, wholly made of or lined with aluminium, nickel, or allay containing 60 per cent or more nickel, either manually or auto- matically operated.
19. Induction type vacuum furnaces designed to operate at pressures lower than
2.1 mm. of mercury and at temperatures higher than 1,100°C.