Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p71
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 204640–207601

the contrary is made, the words 'metals' and 'alloys' in 1C001 to 1C012 cover crude and semi‑fabricated forms, as follows:
Crude forms:
Anodes, balls, bars (including notched bars and wire bars), billets, blocks, blooms, brickets, cakes, cathodes, crystals, cubes, dice, grains, granules, ingots, lumps, pellets, pigs, powder, rondelles, shot, slabs, slugs, sponge, sticks;
Semi‑fabricated forms (whether or not coated, plated, drilled or punched):
a. Wrought or worked materials fabricated by rolling, drawing, extruding, forging, impact extruding, pressing, graining, atomising, and grinding, i.e.: angles, channels, circles, discs, dust, flakes, foils and leaf, forging, plate, powder, pressings and stampings, ribbons, rings, rods (including bare welding rods, wire rods, and rolled wire), sections, shapes, sheets, strip, pipe and tubes (including tube rounds, squares, and hollows), drawn or extruded wire;
b. Cast material produced by casting in sand, die, metal, plaster or other types of moulds, including high pressure castings, sintered forms, and forms made by powder metallurgy.
The object of the control should not be defeated by the export of non‑listed forms alleged to be finished products but representing in reality crude forms or semi‑fabricated forms.
1. C. 001. Materials specially designed for absorbing electromagnetic radiation, or intrinsically conductive polymers, as follows:
N.B.: SEE ALSO 1C101.
a. Materials for absorbing frequencies exceeding 2 x 108 Hz but less than 3 x 1012 Hz;
Note 1: 1C001.a. does not apply to:
a. Hair type absorbers, constructed of natural or synthetic fibres, with non‑magnetic loading to provide absorption;
b. Absorbers having no magnetic loss and whose incident surface is non‑planar in shape, including pyramids, cones, wedges and convoluted surfaces;
c. Planar absorbers, having all of the following:
1. Made from any of the following:
a. Plastic foam materials (flexible or non‑flexible) with carbon‑loading, or organic materials, including binders, providing more than 5% echo compared with metal over a bandwidth exceeding ±15% of the centre frequency of the incident energy, and not capable of withstanding temperatures exceeding 450 K (177°C); or
b. Ceramic materials providing more than 20% echo compared with metal over a bandwidth exceeding ±15% of the centre frequency of the incident energy, and not capable of withstanding temperatures exceeding 800 K (527°C);

Technical Note:
For the purposes of 1C001.a. Note 1.c.1., absorption test samples should be a square at least 5 wavelengths of the centre frequency on a side and positioned in the far field of the radiating element.

2. Tensile strength less than 7 x 106 N/m2; and
3. Compressive strength less than 14 x 106 N/m2;
d. Planar absorbers made of sintered ferrite, having all of the following:
1. A specific gravity exceeding 4.4; and
2. A maximum operating temperature of 548 K (275°C);
e. Planar absorbers having no magnetic loss