AB. 35. Lithium, as follows-- (a) Metal;
A.B. 36.
(b) Hydrides, in which lithium, whether normal, depleted or enriched in the 6 Isolape, is compounded with hydrogen or its isotopes or complexed with other metals or aluminium hydrides
(c) Alloys, as follows-
() Magnesium-bussd alloys containing 10% or dcore lithium
(i) Containing 50% or more of lithium either normal or depleted in the 6 inotope; or
(ii) Containing any quantity of lithium enriched in the 6 isotope; or
(d) Any other material containing lithium enriched in the 6 isotope, including compounds, mixtures, and concentrates,
Nuclear reactors, is resetors capable of operation so as to maintain a controlled, self-sustaining fission chain reaction; major components designed or intended for use in a nuclear reactor such as reactor vessels, core support structures, coolant pumps, fuel element handling equipment, heat exchangers and control rod drive mechanisms; power generating and/or pro- pulsion equipment not elsewhere specifled, specially designed for use with nuclear reaclors.
Hafnium metals and alloys and compounds of hafnium con- taining more than 15% hafnium by weight.
1072.
AE 37.
IOTS.
A.B. 38.
Calcium containing both less than 0.01% by weight of impurities other than magnesium and less than 10 parts per million of boron.
1080.
A.E. 19.
Tritium, its compounds, not elsewhere specifled, and their mix- tures in which the ratio of tritium to hydrogen by atoms exceeds 1 part in 1,000.
1081.
A.B. 40.
Neutron generator tubes designed for operation without an external vacuum system, and utilizing electrostatic acceleration to induce a tritium-deuteriuro nuclear reaction.
A.E. 41.
Process control instrumentalion, not elsewhere specified, specially designed or modified for monitoring or controlling the processing of irradiated fissionable or fertile materials or irradiated lithium.
1086.
INDUSTRIAL LIST.
The following, including spare parts and components therefor where applicable—
1088.
1016.
GROUP A.
METAL-WORKING MACHINERY.
Grinding heads and spindle assemblies (consisting of spindles and bearings as a minimal assembly) designed or rated for operation at speeds in excess of 120,000 revolutions per minute and machines specially designed for the utilization of such grinding heads.
Presses and specialized controls, accessories and parts thereof, as follows-
(a) Presses (stabilized equipment using rams) for applyiog bigb impact energy work forces through use of explosives or compressed gases including air;
(b) Presses specially designed or redesigned for the working or forming of metale, alloys or other materials with a melting point exceeding 1,900°C:
(c) Presses, bydraulic, not elsewhere specified, with total rated
forces of over 10,000 tons;
(d) Isostatic presses, as follows-
Capable of achieving a maximum working pressure of 20,000 psi. (1,406 kg/cm2) or greater and possessing a chamber cavity with an inside diameter in excess of 16 inches (40.6 cm), or
(D) Capable of achieving a maximum working pressure of 5,000 pa.i. (35) kg/cm2) or greater and having a con- trolled thermal environment within the closed cavity, excepi those possessing a chamber cavity with an inside diameter of less than 5 inches (127 mm) and which are also capable of achieving and maintaining a controlled thermal enviroa- ment only between +80°C. and -35°C.
(e) Control equipment, accessories and parts which are specially
designed for the above presses.
Spia-forming machines, except those with a spindle drive motor of less than 50 borse-power.
Machines and equipment specially designed for making or measuring gas turbine blades.
Machinery for use in the manufacture of aircraft, as follow (2) Machinery specially designed for the working or forming
of aircraft sheet, plate or extrusion;
(b) Machinery specially designed for the milling of aircraft
skin.
Machines specially designed for the manufacture of jet engines, the following-
(a) Jet engine compressor case boring machines;
(5) Jet engine compressor or turbine disc turning machines; (c) Jet engine rotor grinders.
Gear making and/or fluishing machinery, as follows-
(a) Gear grinding machines, generating type, capable of accept-
ing gear blanks of 36 inches work diameter or more; (b) Gear grinding machines, generating type, capable of accept- ing gear blanks of 9 inches work diameter or more for the production of helical or herring bone gears;
(c) Capable of the production of gears of a module finer than 0.5 millimetres (diametral pitch finer than 48) and meeting a quality standard better than DIN 3963 Class 7.