Chapter GROUP 2B Nuclear Facilities, Equipment and Appliances

B1	Plants for the separation of isotopes of source material and special and other fissile materials, and specially designed or prepared equipment and components therefor, including–
	(1) Valves wholly made of or lined with nickel, nickel alloy, phosphor bronze, stainless steel, aluminium or aluminium alloy, corrosion resistant to uranium hexafluoride (UFd26) or hydrogen fluoride (HF), 0.5 cm or greater in diameter with bellows seal …	A
	(2) Units capable of separating isotopes of natural uranium, depleted uranium and special or other fissile materials, such as–
	(a) Gas centrifuges …	A
	(b) Jet nozzle separation units …	A
	(c) Vortex separation units …	A
	(d) Laser isotopic separation units …	A
	(e) Chemical exchange separation units …	A
	(f) Electromagnetic separation units …	A
	(g) Plasma separation units …	A
	(h) Gaseous diffusion separation units …	A
	(3) Blowers and compressors (turbo, centrifugal and axial flow types) wholly made of or lined with nickel, nickel alloy, phosphor bronze, stainless steel, aluminium or aluminium alloy, corrosion resistant to uranium hexafluoride (UFd26) or hydrogen fluoride (HF) and having a capacity of 1,700 litres (1.7 mu23) per minute or greater, including compressor seals, except blowers and compressors not so defined …	A
	(4) Heat exchangers made of aluminium, copper, nickel or nickel alloys, separately or together, and heat exchangers incorporating tubing clad with aluminium, copper, nickel or nickel alloys, separately or together, and in which the other parts are made wholly of the foregoing metals, separately or together, designed to operate at sub-atmospheric pressure with a leak rate of less than 10 pascal (0.1 millibar) per hour under a pressure differential of 10u25 pascal (1 bar) except heat exchangers not so defined …	A
	(5) Gaseous diffusion barriers …	A
	(6) Gaseous diffuser housings …	A
	For specially designed or prepared materials for the separation of isotopes, see the entry in Group 2A relating thereto.
B2	Plants for the reprocessing of irradiated nuclear fuel and equipment and components specially designed or prepared therefor, or capable of being adapted for use therein, including– …	A
	(1) Fuel element chopping or shredding machines …	A
	(2) Criticality safe tanks (e.g. small diameter, annular or slab tanks) …	A
	(3) Countercurrent solvent extractors and ion exchange processing equipment …	A
	(4) Process control equipment or instrumentation specially designed or prepared for monitoring or controlling the reprocessing or irradiated source and special and other fissile materials …	A
		(For process control equipment for lithium, see the entry in this Group relating thereto.)
B3	Nuclear reactors, i.e. reactors capable of operation so as to maintain a controlled, self-sustaining fission chain reaction, and equipment and components specially designed or prepared for use in connection with a nuclear reactor, including–
	(1) Pressure vessels, i.e. metal or other vessels as complete units or as major shop-fabricated parts therefor …	A
	(2) Fuel element handling equipment, including reactor fuel charging and discharging equipment …	A
	(3) Control rods, including the neutron absorbing part and the support or suspension structures therefor, and control rod guide tubes …	A
	(4) Electronic controls for controlling the power levels in nuclear reactors, including reactor control rod drive mechanisms and radiation detection and measuring instruments to determine neutron flux levels …	A
	(5) Pressure tubes …	A
	(6) Coolant pumps …	A
	(7) Internals specially designed or prepared for the operation of a nuclear reactor, including core support structures, thermal shields, baffles, core gridplates, diffuser plates …	A
	(8) Heat exchangers …	A
B4	Plants specially designed for the fabrication of nuclear reactor fuel elements and specially designed equipment therefor …	A
B5	Plants for the production or concentration of heavy water, deuterium, or deuterium compounds, and specially designed or prepared equipment and components therefor …	A
B6	Plants for the production of uranium hexafluoride (UFd26) and specially designed or prepared equipment (including UFd26 purification equipment) and components therefor …	A
C1	Neutron generator systems, including tubes, designed for operation without an external vacuum system and utilising electrostatic acceleration to induce a tritium-deuterium nuclear reaction …	A
C2	Power generating or propulsion equipment specially designed or adapted for use with military, space, marine or mobile nuclear reactors …	A
C3	Electrolytic cells for the production of fluorine, with a production capacity greater than 250 g of fluorine per hour …	A
C4	Equipment specially designed for the separation of isotopes of lithium …	A
	(For plants for the separation of isotopes other than lithium, see the entry for such plants in this Group.)
C5	Equipment specially designed for the production or recovery of tritium …	A
C6	Frequency changers (converters or inverters) capable of a multi-phase electrical output of between 600–2,000 Hz and specially designed components therefor for use in gas centrifuge plants …	A
—	Equipment specially designed for the manufacture or assembly of gas centrifuges capable of the enrichment or separation of isotopes and specially designed parts, components and equipment therefor …	A
	(For gas centrifuge plants, see the entry for plants for separation of isotopes in this Group.)
—	Mass spectrometers and mass spectrometer sources designed for measuring the isotopic composition of uranium hexafluoride (UFd26) gas, uranium and uranyl compounds …	A
—	Pressure gauges capable of measuring pressures to 100 Torr (13332.2 newtons per square metre) or less having sensing elements of nickel, nickel alloy, phosphor bronze, stainless steel, aluminium or aluminium alloy, corrosion resistant to uranium hexafluoride (UFd26) or hydrogen fluoride (HF); and such sensing elements.	A
—	Process control equipment or instrumentation specially designed or prepared for monitoring or controlling the reprocessing of irradiated lithium …	A