Decree No. 147 / 1997 Coll.
Decree of the State Office for Nuclear Safety establishing a list of selected items and dual-use items in the nuclear field
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147
DECLARATION
State Office for Nuclear Security
of 17 June 1997
establishing a list of selected items and dual-use items in the nuclear field
The State Nuclear Safety Authority provides, in accordance with § 47 (7), for the implementation of § 2 (b). (j) points 2 and 3 of Act No. 18 / 1997 Coll., on the Peaceful Use of Nuclear Energy and Ionising Radiation (Atomic Act) and on the Amendment and Addition of Certain Laws, hereinafter referred to as "the Act":
Subject matter and scope of the adjustment
(1) This Decree establishes a list of selected items [§ 2 (j) (2) of the Act] and dual-use items [§ 2 (j) (3) of the Act] in the nuclear field.
(2) The list of selected items is set out in Annex 1 to this Decree and the list of dual use items is set out in Annex 2 to this Decree.
Efficacy
This decree shall take effect on the day of its publication.
Chairman:
Ing. Stuller v. r.
Příloha č. 1
Annex No 1 to Decree No. 147 / 1997 Coll.
LIST OF SELECTED ITEMS
(SELECTED MATERIALS, EQUIPMENT AND TECHNOLOGY IN NUCLEAR AREA)
subject to import, export and transit control arrangements
the list is drawn up in accordance with the International Atomic Energy Agency document
INFCIRC / 254 / Rev.2 / Part 1
CONTENTS
| Strana | ||
|---|---|---|
| 1. | Jaderné reaktory a speciálně konstruovaná nebo upravená zařízení a komponenty k provozu jaderných reaktorů | 3 |
| 2. | Nejaderné materiály určené pro reaktory | 4 |
| 3. | Závody na přepracování ozářených palivových článků a zařízení speciálně konstruovaná nebo upravená k tomuto účelu | 5 |
| 4. | Závody na výrobu palivových článků pro jaderné reaktory a zařízení speciálně konstruovaná nebo upravená k tomuto účelu | 6 |
| 5. | Závody na separaci izotopů uranu a zařízení, jiná než analytické přístroje, speciálně konstruovaná nebo upravená k tomuto účelu | 6 |
| 6. | Závody na výrobu nebo úpravu koncentrace těžké vody, deuteria a jeho sloučenin, a zařízení speciálně konstruovaná nebo upravená k tomuto účelu | 19 |
| 7. | Závody na konverzi uranu a zařízení speciálně konstruovaná nebo upravená k tomuto účelu | 21 |
| Úvodní a vysvětlující poznámky | 22 | |
1. Nuclear reactors and specially designed or modified equipment and components for the operation of nuclear reactors
1.1. Complete nuclear reactors
Nuclear reactors capable of maintaining a critical controlled chain reaction of fission, except zero power reactors. Zero power reactors are defined as reactors with a designed maximum annual plutonium production not exceeding 100 g.
1.2. Reactor containers
Metal containers or their main workshops manufactured parts specially designed or modified for the location of an active nuclear reactor zone as defined in paragraph 1.1., as well as reactor assemblies as defined in paragraph 1.8.
1.3. Nuclear reactor weighing machines
Manipulating equipment specially designed or modified for weighing or removing fuel from a nuclear reactor as defined in paragraph 1.1.
1.4. Nuclear reactor control rods and related equipment
Specially designed or prepared rods, their supporting or hanging structures, rod drives and their guide tubes, for the control of the fission process in a nuclear reactor as defined in paragraph 1.1.
1.5. Nuclear reactor pressure pipes
Tubes specially designed or prepared to contain fuel elements and primary reactor coolant as defined in paragraph 1.1 above at operating pressures exceeding 5,07 MPa.
1.6. Zirconium tubes
Metal zirconium and alloys, in the form of tubes or pipe assemblies, specially designed or modified for use in a nuclear reactor as defined in paragraph 1.1, in quantities exceeding 500 kg for any country receiving at any time during 12 months and for which the hafnia-zirconium weighting ratio is less than 1: 500.
1.7. Primary coolant pumps
Pumps specially designed or modified to provide the primary coolant of nuclear reactors as defined in paragraph 1.1.
1.8. Construction of nuclear reactors
Nuclear reactor assemblies specially designed or modified for use in the nuclear reactor as defined in paragraph 1.1., including the core structure of the active zone, control rods conductors, heat shielding, dampening divisions, active zone plate grids and diffuser plates.
1.9. Heat exchangers
Heat exchangers (steam generators) specially designed or modified for use in the primary cooling circuit of a nuclear reactor as defined in paragraph 1.1.
1.10. Neutron detection and measurement apparatus
Specially designed or modified neutron detection and measurement instruments for determining neutron flux levels within the reactor active zone as defined in paragraph 1.1.
2. Non-nuclear materials for reactors
2.1. Deuterium and heavy water
Deuterium, heavy water (deuterium oxide) and other deuterium compounds in which the ratio of deuterium atoms to hydrogen atoms exceeds 1: 5000, intended for use in the nuclear reactor defined in paragraph 1.1, in quantities exceeding 200 kg of deuterium atoms for any recipient country at any time within 12 months.
2.2. Graphite nuclear purity
Graphite with a purity better than 5 ppm boron equivalent and a density greater than 1,50 g / cm3 for use in a nuclear reactor as defined in paragraph 1.1., in quantities exceeding 3.104 kg (30 t) for any recipient country at any time within 12 months.
3. Race for the reprocessing of irradiated fuel cells and equipment specially designed or modified for this purpose
Items corresponding to the term "equipment specially designed or modified 'for the reprocessing of irradiated fuel elements include:
3.1. Machines for dividing irradiated fuel cells
Remote controlled equipment specially designed or modified for use in a plant for the reprocessing of irradiated fuel elements, designed for cutting, cutting, or cutting irradiated fuel cartridges, bundles or rods.
3.2. Solvent tanks
Tanks secured against critical (e.g. small diameter, ring or plate design) specially designed or modified for use in reprocessing plants are designed for the dissolution of irradiated nuclear fuel and are resistant to hot, highly corrosive liquids and can be remotely filled and operated.
3.3. Liquid extractors and liquid extraction equipment
Specially designed or prepared extractors, such as charge and pulse columns, mixing and settling tanks or centrifugal reactors, are designed for use in irradiated fuel reprocessing plants. Liquid extractors shall be resistant to corrosion by nitric acid. Liquid extractors are usually manufactured according to extremely strict standards (including special welding, control, quality assurance and quality control) from low-carbon stainless steel, titanium, zirconium and other high-quality materials.
3.4. Containers for storage of chemicals or containers
Specially designed or prepared storage containers or containers are used in the irradiated fuel reprocessing plant. These containers or containers shall be resistant to corrosion by nitric acid. They are usually made of materials such as low-carbon stainless steel, titanium or zirconium or other high-quality materials. Containers may be designed for remote control and maintenance and may have the following parameters to prevent criticism:
(1) walls or internal structures corresponding to at least 2% boron equivalent; or
(2) a maximum diameter of 175 mm for cylindrical containers; or
(3) a maximum width of 75 mm for each plate or ring vessel.
3.5. Plutonium nitrate conversion systems to oxide
Complete systems are specially designed or modified for the conversion of plutonium nitrate to plutonic oxide, are specially designed to prevent criticism, eliminate radiation and minimise toxicity hazards.
3.6. Systems for the production of plutonium metal from plutonium oxide
Complete systems specially designed or modified for the production of metal plutonium specially designed to prevent criticism, eliminate radiation and minimise toxicity hazards.
4. Fuel cell plants for nuclear reactors and equipment specially designed or modified for this purpose
Items corresponding to the term "equipment specially designed or modified 'for the production of fuel elements include equipment which:
(a) normally come into direct contact or process or direct the production flow of nuclear material;
(b) hermetically seal nuclear material inside the coating;
(c) check the integrity of the coating or hermetic seal; or
(d) control the final treatment of hermetically sealed fuel.
5. Race for the separation of uranium isotopes and equipment, other than analytical instruments, specially designed or modified for this purpose
Items corresponding to the term "bitumen, other than analytical instruments, specially designed or modified" for the separation of uranium isotopes include:
5.1. Gas centrifuges, assemblies and components specially designed or modified for use in gas centrifuges
5.1.1. Rotary components
(a) Complete rotor assemblies:
Thin-wall cylinders, or a series of interconnected thin-wall cylinders, which are made of one of the materials having a high strength to density ratio, as described in the explanatory note to this paragraph. If the cylinders are connected, the connections are obtained by flexible bellows or rings as described in paragraph 5.11. (c). The rotor shall be equipped with an internal deflector (s) and end caps as described in paragraphs 5.1.1. (d) and 5.1.1. (e). However, the complete assembly can only be supplied partially assembled.
(b) Rotor cylinders:
Specially designed or modified thin-wall cylinders with a wall thickness of 12 mm (0,5 in) or less, of a diameter of 75 mm (3 in) and 400 mm (16 in) made of high strength to density ratio materials as described in the explanatory note to this paragraph.
(c) Rings or bellows
Components specially designed or modified to enable the rotor cylinder support design to be placed or to join a series of rotor cylinders together. The wavelength is a rolled short cylinder with a diameter of 75 mm (3 in) to 400 mm (16 in) with a maximum wall thickness of 3 mm (0,12 in), made of high strength to density ratio materials described in the explanatory note to this paragraph.
(d) Deflectors
Circular components with a diameter of 75 mm (3 in) to 400 mm (16 in), specially designed or prepared for installation within a centrifuge rotor cylinder, designed to separate the sampling chamber from the main separation chamber and, in some cases, to assist the circulation of UF6 gas within the main rotor cylinder separation chamber are made of one of the materials with a high strength-to-density ratio as described in the explanatory note to this paragraph.
(e) Upper end caps
Circular components with a diameter of 75 mm (3 in) and 400 mm (16 in), specially designed or prepared to close the ends of the rotor cylinder and maintaining UF6 inside the rotor cylinder, which in some cases also act as supports, maintain or contain as an integral part of the upper bearing (top cap) or carry the rotational parts of the engine and lower bearing (bottom cap). They are made of high strength to density ratio materials as described in the explanatory note to this paragraph.
5.1.2. Non-moving components
(a) Magnetic suspension bearings:
Specially designed or prepared bearing assemblies, consisting of ring magnets suspended inside a housing containing a buffer medium. The housing is made of UF6-resistant material (see explanatory note to paragraph 5.2). Magnetic pairs with pole attachments or second magnet are connected to the top cap as described in paragraph 5.1.1. (e). The magnet can be ring shaped, with the maximum ratio between the outer diameter and the inner diameter equal to 1.6: 1. The magnet may have an initial permeability of at least 0,15 H / m, (120.000 in CGS units) a minimum remanence of 98,5% or more and an energy yield greater than 80 kJ / m3 (107 Gauss-oersteds). In addition to the usual material characteristics, it is necessary that the variation of the magnetic axis from the geometric axis is limited by very small tolerances (less than 0,1 mm) or that a specific requirement for the homogeneity of the magnet material is applied.
(b) Bearings and dampers
Specially designed or modified bearings include a set of swivel pin / cap mounted on a shock absorber. The swivel pin is usually a hardened steel shaft with a hemisphere at one end and a fixture for the lower cap, as described in paragraph 5.1.1 (e), at the end of the second. A hydrodynamic bearing can be connected to the shaft. The lid is a pellet with a semi-spherical socket on one of the surfaces. These components are often supplied separately from the silencer.
(c) Molecular pumps
Specially designed or prepared cylinders have internal machined or extruded screw grooves and internal machined openings. Typical dimensions are as follows: internal diameter 75 mm (3 in) to 400 mm (16 in), wall thickness at least 10 mm (0,4 in), with a length to diameter ratio of 1: 1 or more. The tracks have a typical rectangular cross-section and depth of 2 mm (0,08 in) or greater.
(d) Engine stators
Specially designed or modified ring stators for high-speed multiphase AC-motors, modified for synchronous operation in a vacuum of 600-2000 Hz and a power range of 50-1000 VA. The stators consist of multi-phase winding on the core of laminated iron sheets with small losses, consisting of thin sheets, usually of a thickness of 2 mm (0,08 in) or less.
(e) Centrifugal cases
Components specially designed or prepared to accommodate gas centrifuge rotor tube assemblies. The cases consist of a solid cylinder with a wall thickness of up to 30 mm (1,2 in) with precision machined ends for bearing placement and one or more mounting flanges. Worked ends are parallel to each other and perpendicular to the longitudinal axis of the cylinder with a deviation of less than or equal to 0,05 °. The housing can also be of a honeycomb type for storing several rotor tubes. The cases are made of or protected by materials resistant to corrosion by UF6.
(f) Shoulders
Pipes with an internal diameter of up to 12 mm, specially designed or modified for the extraction of UF6 gas from a rotor cylinder based on the Pitot tube effect (with an orifice oriented in the direction of the gas circuit current inside the rotor, for example by bending the end of a radially positioned tube), which can be fixed to the central gas discharge system. The pipes are made of or protected by corrosion resistant materials of UF6.
5.2. Auxiliary systems, equipment and components specially designed or modified for enrichment plants with gas centrifuges
5.2.1. Power systems / systems for product and residue extraction
Specially designed or modified technological systems include:
Power autoclaves (or stations) of a kind used for bringing UF6 to centrifugal cascades at pressures up to 100 kPa (15 psi) and flows of 1 kg / h or greater;
Desublimators (or freezing precipitators) used to remove UF6 from cascades at pressures up to 3 kPa (0,5 psi). Desublimators may be cooled to 203 K (-70 ° C) and heated to 343 K (+ 70 ° C);
The "product 'and" residues' stations used to fill UF6 into containers.
This plant, equipment and pipes are made of corrosion resistant materials of UF6 or of such materials lined (see explanatory note to paragraph 5.2) and manufactured in such a way as to meet the requirements of very high vacuum and purity standards.
5.2.2. Machine piping systems for collectors
Specially designed or modified piping and collector systems for the transport of UF6 within centrifugal cascades. The piping network is usually a type of "triple" collector system where each centrifuge is connected to each collector (s). This arrangement is repeated many times. All of these systems are made of corrosion resistant materials of UF6 (see Introductory Note to paragraph 5.2) and manufactured to meet the requirements of very high vacuum and purity standards.
5.2.3. Mass spectrometers for UF6 analysis / ion source
a.
1. Unit resolution for atomic mass exceeding 320;
2. Ion-based sources made of or coated with nickel or nickel;
3. Ion sources with electron bombardment ionization;
4. Collector system suitable for isotopic analysis.
5.2.4. Frequency changers
Frequency changers (also known as converters or inverters) specially designed or modified for the supply of engine stators as defined in paragraph 5.1.2. (d) or parts, components and assembly subsystems of such frequency converters, having all of the following:
1. Multiphase output in the 600-2000 Hz frequency area;
2. High stability (with frequency control better than 0,1%);
3. Low harmonic distortion (less than 2%); and
4. Efficacy greater than 80%.
5.3. Specially designed or prepared assembly units and components for use in enrichment of gas diffusion
5.3.1. Gas diffusion bulkheads
(a) Specially designed or prepared thin porous filters with pore sizes of between 100 and 1000 nm (angström), a thickness of 5 mm (0,02 in) or less and a tubular shape of 25 mm (1 in) or less, made of metallic, polymer or ceramic materials resistant to corrosion by UF6; and
(b) Specially modified compounds or powders for the manufacture of such filters. Such compounds and powders contain nickel or its alloys with a minimum nickel content of 60%, aluminium oxide or to UF6 fully resistant fluorinated hydrocarbon polymers with a purity of more than 99,9%, a particle size of less than 10- 5 m and a high particle size uniformity which are specially adapted for the production of gas diffusion barium.
5.3.2. Diffuser lockers
a. These containers are made or internally lined with corrosion resistant materials of UF6 and designed for installation in horizontal or vertical positions.
5.3.3. Compressors and gas blowers
Specially designed or prepared axial, centrifugal or volume compressors or gas blowers with a minimum suction capacity of 1 m3 / min UF6 and a discharge pressure of up to several hundred kPa (100 psi), designed for long-term use in UF6 with or without an electric motor of adequate power, as well as individual assemblies of such compressors and blowers. These compressors and blowers have a pressure ratio of 2: 1 to 6: 1 and are made of or coated with materials resistant to corrosion by UF6.
5.3.4. shaft sealing
a. Such seals are usually designed for a balancing gas penetration rate of less than 1000 cm3 / min (60 in3 / min).
5.3.5. Heat exchangers for UF6 cooling
Specially designed or prepared heat exchangers made of or coated with materials resistant to corrosion by UF6 (excluding stainless steel) or copper and, where appropriate, combinations thereof. They are designed for a maximum pressure change rate due to leakage of less than 10 Pa (0,0015 psi) per hour at a pressure difference of 100 kPa (15 psi).
5.4. Specially designed or modified auxiliary systems, equipment and components for use in gas diffusion enrichment plants
5.4.1. Systems for UF6 and Product and Residues
Specially designed or modified technological systems capable of operating at a maximum pressure of 300 kPa (45 psi), including:
Power autoclaves (or systems) used to bring UF6 into gas diffusion cascades;
Desublimators (freezers) used to remove UF6 from diffuse cascades;
Fluid stations in which UF6 gas from cascades is compressed, cooled and thus transferred to liquid form;
The "product 'and" residues' stations used to fill UF6 into containers.
5.4.2. Pipes for collectors
Specially designed or modified pipeline and collector systems for the transport of UF6 within gas diffusion cascades. This pipeline network is usually designed with a "double" collector system where each unit is connected to each collector.
5.4.3. Vacuum systems
(a) Specially designed or modified large-scale vacuum collectors, collection piping and vacuum pumps having a suction capacity of 5 m3 / min (17.5 ft3 / min) or greater.
(b) Vacuum pumps specially designed for use in UF6-containing environments, made of or coated with nickel, aluminium, nickel or nickel alloys. These pumps may be made either as rotary or as volumetric. They may have gaskets and seals of hydrofluorocarbons polymers and may use special working fluids.
5.4.4. Special closing and regulating valves
Specially designed or modified shut-off valves with manual or automatic control and control wave valves with a diameter of 40 to 1500 mm (1,5 to 59 in), made of materials resistant to UF6, for installation in both main and auxiliary enrichment plant systems based on the gas diffusion method.
5.4.5. Mass spectrometers for UF6 analysis / ion sources
a.
1. Unit resolution for atomic mass exceeding 320;
2. Ion-based sources made of or coated with nickel or nickel;
3. Ion sources with electron bombardment ionization;
4. Collector system suitable for isotopic analysis.
5.5. Specially designed or modified systems, equipment and components for use in enrichment plants based on the aerodynamic process
5.5.1. Separation nozzles
Specially designed or prepared separation nozzles or their assemblies. The separation nozzles consist of slit, curved channels with a curvature radius of less than 1 mm (typically 0,1 to 0,05 mm), resistant to corrosion by UF6. Inside the nozzle is a blade that divides the gas flowing through the nozzle into two fractions.
5.5.2. Faith tubes
Specially designed or modified vortex tubes or their assemblies. Faith tubes are cylindrical or conical, made of or coated with materials resistant to corrosion by UF6, a diameter between 0,5 and 4 cm and a length to diameter ratio of 20: 1 or less. The tubes have one or more tangential inlet holes. At one or both ends, the tubes may be equipped with nozzles.
5.5.3. Compressors and gas blowers
Specially designed or prepared axial, centrifugal or volume compressors or blowers made of or protected by corrosion resistant materials of UF6, with a suction capacity of 2 m3 / min of UF6 and carrier gas (hydrogen or helium) or greater.
5.5.4. shaft sealing
a.
5.5.5. Heat exchangers for gas cooling
Specially designed or prepared heat exchangers made of or protected by materials resistant to corrosion by UF6.
5.5.6. Cases of separation elements
Specially designed or modified separation element housings made of or protected by materials resistant to corrosion by UF6, in which vortex tubes or separation nozzles are located.
5.5.7. Systems for UF6 and Product and Residues
Specially designed or modified technological systems or enrichment plant equipment, made of or protected by corrosion resistant materials of UF6, including:
(a) Power autoclaves, furnaces or systems used to bring UF6 into the enrichment process;
(b) Desublimators (or freezers) used to remove UF6 from the enrichment process before further relocations following heating;
(c) Solidifying or liquefying stations used to extract UF6 from the enrichment process by compressing UF6 gas and converting it into solid or liquid form;
(d) The "product" and "residues" stations used to fill UF6 into containers.
5.5.8. Pipes for collectors
Specially designed or modified piping systems for the transport of UF6 within aerodynamic cascades, made of or protected by corrosion resistant materials of UF6. This pipeline network is usually designed with a dual pantograph system (collectors) where each unit or group of units is connected to each pantograph.
5.5.9. Vacuum systems and vacuum pumps
(a) Specially designed or modified vacuum systems having a minimum suction capacity of 5 m3 / min, consisting of vacuum manifold, vacuum collectors and vacuum pumps designed for operation in an environment containing UF6.
(b) Vacuum pumps specially designed or modified for use in UF6-containing environments made of or protected by corrosion resistant materials of UF6. These pumps may use gaskets made of hydrofluorocarbons polymers and special working fluids.
5.5.10. Special closing and regulating valves
Specially designed or modified shut-off and control wave valves made of or protected by corrosion resistant materials of UF6 with a manual or automatic control of a diameter of 40 to 1500 mm and installed on the main and auxiliary systems of aerodynamic enrichment plants.
5.5.11. Mass spectrometers for UF6 analysis / ion sources
a.
1. Unit resolution for atomic mass exceeding 320;
2. Ion-based sources made of or coated with nickel or nickel;
3. Ion sources with electron bombardment ionization;
4. Collector system suitable for isotopic analysis.
5.5.12. UF6 separation systems and carrier gas
Specially designed or modified technological systems for separation of UF6 and carrier gas (hydrogen or helium).
5.6. Specially designed or modified systems, equipment and components, for use in enrichment plants, based on chemical or ion exchange
5.6.1. Liquid exchange columns (Chemical exchange)
Anti-current liquid columns with mechanical propulsion (i.e. pulse columns with mains etates, refundable columns and internal turbine mixers) specially designed or modified for uranium enrichment using the chemical exchange process. To ensure resistance to corrosion by concentrated hydrochloric acid solutions, these columns and their fittings are made of or protected by suitable plastics such as fluorinated polymers) or glass. The designed filter load lock is short (30 seconds or less).
5.6.2. Liquid centrifugal extractors (Chemical exchange)
Specially designed or prepared liquid centrifugal extractors for uranium enrichment using a chemical exchange process. Such extractors use rotation to achieve organic and water flow dispersion and then centrifugal forces to separate these phases. In order to ensure resistance to corrosion by hydrochloric acid, these extractors are made of appropriate salaries (such as fluorinated polymers) or lined with glass. The projected retention in centrifugal extractors is short (30 seconds or less).
5.6.3. Uranium reduction systems and equipment (Chemical exchange)
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Regulation Information
| Citation | Decree of the State Office for Nuclear Safety No. 147 / 1997 Coll., establishing a list of selected items and dual-use items in the nuclear field |
|---|---|
| Regulation Type | Order |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 07.07.1997 |
|---|---|
| Effective from | 07.07.1997 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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