Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p75
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 215008–217875

of 0.05 mm or less;
Technical Note:
For the purposes of 1C003.a., measurement of initial relative permeability must be performed on fully annealed materials.
b. Magnetostrictive alloys having any of the following:
1. A saturation magnetostriction of more than 5 x 10‑4; or
2. A magnetomechanical coupling factor (k) of more than 0.8; or
c. Amorphous or 'nanocrystalline' alloy strips, having all of the following:
1. A composition having a minimum of 75% by weight of iron, cobalt or nickel;
2. A saturation magnetic induction (Bs) of 1.6 T or more; and
3. Any of the following:
a. A strip thickness of 0.02 mm or less; or
b. An electrical resistivity of 2 x 10‑4 ohm cm or more.
Technical Note:
For the purposes of 1C003.c., 'nanocrystalline' materials are those materials having a crystal grain size of 50 nm or less, as determined by
X-ray diffraction.
1. C. 004. Uranium titanium alloys or tungsten alloys with a "matrix" based on iron, nickel or copper, having all of the following:
a. A density exceeding 17.5 g/cm3;
b. An elastic limit exceeding 880 MPa;
c. An ultimate tensile strength exceeding 1,270 MPa; and
d. An elongation exceeding 8%.
1. C. 005. "Superconductive" "composite" conductors in lengths exceeding 100 m or with a mass exceeding 100 g, as follows:
a. "Superconductive" "composite" conductors containing one or more niobium‑titanium 'filaments', having all of the following:
1. Embedded in a "matrix" other than a copper or copper‑based mixed "matrix"; and
2. Having a cross‑section area less than 0.28 x 10‑4 mm2 (6 µm in diameter for circular 'filaments');

1. C. 005. b. "Superconductive" "composite" conductors consisting of one or more "superconductive" 'filaments' other than niobium‑titanium, having all of the following:
1. A "critical temperature" at zero magnetic induction exceeding 9.85 K (‑263.31°C); and
2. Remaining in the "superconductive" state at a temperature of 4.2 K (‑268.96°C) when exposed to a magnetic field oriented in any direction perpendicular to the longitudinal axis of conductor and corresponding to a magnetic induction of 12 T with critical current density exceeding 1,750 A/mm2 on overall cross‑section of the conductor;
1. C. 005. c. "Superconductive" "composite" conductors consisting of one or more "superconductive" 'filaments' which remain "superconductive" above 115 K (‑158.16°C).
Technical Note:
For the purposes of 1C005., 'filaments' may be in wire, cylinder, film, tape or ribbon form.
1. C. 006. Fluids and lubricating materials, as follows:
a. Not used;
b. Lubricating materials containing, as their principal ingredients, phenylene or alkylphenylene ethers or thio-ethers, or their mixtures, containing more than two ether or thio-ether functions or mixtures thereof;
c. Damping or flotation fluids having all of the following:
1. Purity exceeding 99.8%;
2. Containing less than 25 particles of