(6) Specially designed for operation at temperatures below — 130°C; (c) Having all flow contact surfaces made of any of the following
materials:
(1) 90 per cent or more tantalum, titanium or zirconium, sithe
separately or combined;
(2) 50 per cent or more cobalt or molybdenum, either separately o
combined:
(3) Polytetrafluoroethylene, polytrifluorochloroethylene,
(4) Having all flow contact surfaces made of 10 per cent or more siko
(as metal alloyk
www.
(e) Pumps designed to produce pressures of 450 pa), (32 kg. per sq, em) or more and having an inlet connexion greater than 3 inches (75 mm) internal pipe size.
*. Vacuum pumps all types.
9. Pipe and tubing made of or lined with polytetrafluoroethylene or polyiri
fuorochloroethylene.
10. Containers, jacketed only, for the storage or transportation of liquified pass
GROUP C.
PETROLEUM EQUIPMENT.
1. Oil well drilling and exploration equipment.
2. Equipment for the extraction, production, refining or treatment of lubricans (petroleum based or synthetic), aviation fuels or components thereof, mineral Gif, natural or refinery gases, and petro-chemicals, as follows:
(0) Processing units, the following:
(1) Solvent processing units (including phenol, duosol, furfural and
nitrobcazene solvent extraction and propane de-asphalting wilu);
(2) Dewaxing units (including centrifugal and solvent dewaxing u
such as methylethyl ketone and propane units;
(3) Filtration units (including percolation, filtration, contact Bluation.
and filtrol fractionation units);
(4) Fractionating, rectifying and dephlegmating columna;
(5) Hydrogenation equipment designed to operate at 360 psi, or over (except equipment specially designed for the production of ambtonia or methanol);
(6) Dehydrogenation;
(7) Extracting, treating, separating or stabilizing of natural or refinery
gasest
(8) Isomerization;
(9) Polymerisation;
(10) Aromatization;
(11) Alkylation:
(12) Do-sulpberization;
(13) Thermal or catalytic cracking or reforming including platforming. (6) Complete plants, including any of the above units.
GROUP D.
DIESEL ENGINES AND ELECTRIC GENERATORS.
1. Diesel engines, 50 h.p, and over, whose non-magnetic content exceeds $ per cent of their total weight, Diesel engines of 1,500 h.p. and over with rotary speed of 700 r.pm. or øver.
2. Electric power generating units.
GROUP E.
5
GENERAL INDUSTRIAL EQUIPMENT.
The following, including spare parts and components therefor—
1. Carbon black furnaces.
2. Cable-making machinery specially designed for making multipair and/or
coaxial electric cables.
3. Machinery, equipment and test gear specially designed for the manufacture, automatic assembly or semi-automatic assembly of electronic valves, tran- sisters, crystal diodes, including components and sub-assemblica therefor.
4. Equipment specially designed for purifying and processing silicon and
germanior.
5. Compressors and blowers.
6. Diamonds suitable for industrial use, including splints and borts.
1. Diamond wire drawing dies.
J. Diamond grinding wheels, sticks, bones and laps.
GROUP F.
TRANSPORTATION EQUIPMENT.
The following, including spare parts and components therefor—
1. Ships, the following:
(a) Fishing vessels and bulls therefor designed for speeds of 17 knots or
over when in full load (design) condition;
(6) Seagoing vessels including coasters and bulls therefor not elsewhere specified designed for speeds of 20 knots or over when in full load (design) condition;
(c) Vessels with bulls and propulsion machinery made wholly or primarily
of non-magnetic materiáls;
(d) New ships with decks and platforms especially designed and strengthened
to receive weapons:
(e) Vessels incorporating any of the items specified in this schedule or
arrangements for the demagelization of the vessel.
(0) Tankers.
() I breakers.
(6) Warships (whether or not converted to non-military use and regardless of current state of repair or operating condition)" and bulis, or parts of bulls, for such ships.
6 Whaling factories.
2. Marine steam boilers designed to operate at temperatures of 1100°F (593°C)
and above.
1. Automotive vehicles, tractors, lift trucks, not elsewhere specified, possessing
ar built to current military specifications differing materially from their gormal commercial specifications.
4 Aircraft and aero engines all types,
1 Railway signalling apparatus.
6. Compasses and gyroscopic equipment and specially designed parts and com-
ponents therefor, as follows;
(4) Gyro compasses.
(8) Pressure proof ship's course indicators.