Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p82
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 233662–236635

9A004 or sounding rockets specified by 9A104;
d. Bulk machinable silicon‑carbide reinforced unfired ceramic, usable for nose tips usable in "missiles", space launch vehicles specified by 9A004 or sounding rockets specified by 9A104;
e. Reinforced silicon‑carbide ceramic composites, usable for nose tips, re‑entry vehicles and nozzle flaps usable in "missiles", space launch vehicles specified by 9A004 or sounding rockets specified by 9A104.
f. Bulk machinable ceramic composite materials consisting of an 'Ultra High Temperature Ceramic (UHTC)' matrix with a melting point equal to or greater than 3000°C and reinforced with fibres or filaments, usable for missile components (such as nose‑tips, re‑entry vehicles, leading edges, jet vanes, control surfaces or rocket motor throat inserts) in 'missiles'.
Note: 1C107.f. does not apply to 'Ultra High Temperature Ceramic (UHTC)' materials in non‑composite form.
Technical Notes:
1. In 1C107.f., 'missiles' means complete rocket systems and "unmanned aerial vehicles" capable of a range exceeding 300 km.
2. In 1C107.f., 'Ultra High Temperature Ceramics (UHTC)' includes:
 1. Titanium diboride (TiB2);
 2. Zirconium diboride (ZrB2);
 3. Niobium diboride (NbB2);
 4. Hafnium diboride (HfB2);
 5. Tantalum diboride (TaB2);
 6. Titanium carbide (TiC);
 7. Zirconium carbide (ZrC);
 8. Niobium carbide (NbC);
 9. Hafnium carbide (HfC);
 10. Tantalum carbide (TaC).
1. C. 111. Propellants and constituent chemicals for propellants, other than those specified by 1C011, as follows:
a. Propulsive substances:
1. Spherical or spheroidal aluminium powder, other than that specified in the Munitions List, in particle size of less than 200 µm and an aluminium content of 97% by weight or more, if at least 10% of the total weight is made up of particles of less than 63 µm, according to ISO 2591:1988 or national equivalents;
              Technical Note:
A particle size of 63 µm (ISO R‑565) corresponds to 250 mesh (Tyler) or 230 mesh (ASTM standard E‑11).
2. Metal powders, other than that specified in the Munitions List, with at least 90% of the total particles by particle volume or weight made up of particles of less than 60 µm (determined by measurement techniques such as using a sieve, laser diffraction or optical scanning), whether spherical, atomised, spheroidal, flaked or ground, consisting of any of the following:
a. Zirconium (CAS 7440‑67‑7) or zirconium alloys consisting of 97% by weight or more of zirconium;
b. Beryllium (CAS 7440‑41‑7) or beryllium alloys consisting of 97% by weight or more of beryllium;
c. Magnesium (CAS 7439‑95‑4) magnesium alloys consisting of 97% by weight or more of magnesium; or
d. Boron (CAS 7440‑42‑8) or boron alloys consisting of 85% by weight or more of boron;
                   Note: In a multimodal particle distribution (e.g. mixtures of different grain sizes) in which one or more modes are controlled, the entire powder mixture is controlled.
              Technical Note: