(b) Vibration testing equipment (except mechanical type) cap able of providing a thrust greater than 2,000 lb. (900 kg) and specialized ancillary equipment therefor.
M.C. 19. Environmental chambers capable of pressures of 26 Torr or less including those with a pressure capability only and those which also have a capability of simulating other environments, such as radiation and temperature; specialized parts, controls and devices Cherefor.
M.L. 20. Cryogenic equipment, as follows-
() Equipment designed for maintaining an ambient temperature
below -274°F (-[70°C)
(i) Designed for use in marine, airborne or space applica- tions;
(ii) Ruggedized for mobile ground use;
(1) Designed to maintain operating temperatures for electrical, magnetic or electronic equipment or components; (6) Electrical, magnetic or electronic equipment or components and electrical conductors specially designed for operation continuously or discontinuously at ambient temperatures below -274°F. (~[70°C);
(c) Specially designed accessories sub-assemblies, parts or cor-
ponents for aub-items (a) and (b).
M.L. 21. Instruments or devices capable of automatically measuring the speed of sound fa aftu in water and rated for differential sensi- tivity measuretdents of 1 part in 5,000 parts or better; specialized parts therefor; equipment containing auch instruments or devices.
M.L. 22. Blectrically triggered shutters of the carbon injection or photo- chromic function type having a shutter speed of less than 100 micro-seconds, except shutters which are an essential part of a high speed camera.
ATOMIC ENERGY LIST.
A.E. 5.
A.E. &
A.B. II.
A.B. 12.
7
(e) Irradiated uranium containing plutonium;
(A) Plutonium, alloys containing plutonium and compounds
containing plutonium;
(e) Thorium, unwrought or wrought, and alloys and compounds containing thorium, excluding alloys containing less than 1.5% of thorium by weight, and except medicinals: (4) Irradiated thorium containing uranium 233.
(a) Deuterium and compounds, not elsewhere specified, mix- tures and solutions containing deuterium, including heavy water and heavy paraffins, in which the ratio of deuterium atoms to hydrogen atoms cxceeds 1:5,000 by number. (b) Plant and equipment specially designed for either the pro-
duction or concentration of deuterium oxide or both.
Zirconium metal, alloys containing more than 50% zirconium by weight, and compounds, in which the ratio of hafnium content to zirconium content is less than I part to 500 parts by weight: and manufactures wholly thereof.
Mickel, as follows-
(4) Powder with a nickel content of 99% or more, and a
particle size of less than 100 microns;
(b) Porous metal with a mean pore size of 25 microns or less, and a nickel purity content of 99% or more, except single porous nickel metal sheets not exceeding 144 square inches (930 cm3) in size, intended for use in batteries with civil applications.
Beryllium metal and manufactures wholly thereof (excluding beryllium windows for medical X-ray machines); alloys contain- ing more than 50% beryllium by weight; oxides and other compounds.
A.E. 14.
Fluorine.
A.E. 15.
Chlorine trifluoride.
AE. I.
Source (fertile) and fissinnable materials, Including, but not limited to, the following-
A.E. 17.
(a) Minerals, raw and treated (including residues and tailings), which contain either uranium or tharlum or any combina- tion thereof, exoceding 0.05% by weight, as follows-
(1) Ores containing uranium including pitchblende;
(ii) Monaxite and monaxite sands;
(iii) Ores containing thorium including erano Chorianite;
(8) Natural uranium unwrought or wrought including alloys and compounds of natural uranium, having an uranium content exceeding 0.05%, excepting medicinals;
(c) Uranium 233, alloys containing uranium 233 and com-
pounds of uranium 233:
(ch Uranium enriched in the isotope 235, alloys containing uranium enriched in the isotope 235, and compounds of Uranium enriched in the isotope 235;
A.E. 18.
A.E. 19.
A.E. 22.
Fluorinated bydrocarbons, as follows-
(a) Trichlorotrifluoroethane;
(b) Dichlorotetrafluoroethane.
Equipment specifically designed for the separation of isotopes of either uranium or lithium or both.
Machines, materials or equipment specially designed for use in the processing of irradiated nuclear materials in order to isolate or recover fissionable materials, such as nuclear reactor fuel chopping machines, countercurrent solvent extractors, and specially designed parts and accessories therefor.
Mass spectrographs and spectrometers, as followe
(0) All multi-focus types (including double focus, tandem and
cycloidal);
(b) Single focus types possessing a radius of curvature of 5
inches or more;