Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p113
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 317134–320070

cm3 and 20,000 cm3; and
2. Capable of operating with melting temperatures above 1,973 K (1,700°C);
b. Electron beam melting furnaces, plasma atomisation furnaces and plasma melting furnaces having both of the following characteristics:
1. A power of 50 kW or greater; and
2. Capable of operating with melting temperatures above 1,473 K (1,200°C);
c. Computer control and monitoring systems specially configured for any of the furnaces specified by 2B227.a. or b.
d. Plasma torches specially designed for the furnaces specified by 2B227.b. having both of the following characteristics:
1. Operating at a power greater than 50kW; and
2. Capable of operating above 1473 K (1200°C);

           e. Electron beam guns specially designed for the furnaces specified by 2B227.b. operating at a power greater than 50kW.
2. B. 228. Rotor fabrication or assembly equipment, rotor straightening equipment, bellows‑forming mandrels and dies, as follows:
a. Rotor assembly equipment for assembly of gas centrifuge rotor tube sections, baffles, and end caps;
Note: 2B228.a. includes precision mandrels, clamps, and shrink fit machines.
b. Rotor straightening equipment for alignment of gas centrifuge rotor tube sections to a common axis;
Technical Note:
In 2B228.b. such equipment normally consists of precision measuring probes linked to a computer that subsequently controls the action of, for example, pneumatic rams used for aligning the rotor tube sections.
c. Bellows‑forming mandrels and dies for producing single‑convolution bellows.
Technical Note:
In 2B228.c. the bellows have all of the following characteristics:
1. Inside diameter between 75 mm and 650 mm;
2. Length equal to or greater than 12.7 mm;
3. Single convolution depth greater than 2 mm; and
4. Made of high‑strength aluminium alloys, maraging steel or high strength "fibrous or filamentary materials".
2. B. 230. All types of "pressure transducers" capable of measuring absolute pressures and having all of the following characteristics:
a. Pressure sensing elements made of or protected by aluminium, aluminium alloy, aluminium oxide (alumina or sapphire), nickel, nickel alloy with more than 60% nickel by weight or fully fluorinated hydrocarbon polymers;
b. Seals, if any, essential for sealing the pressure sensing element, and in direct contact with the process medium, made of or protected by aluminium, aluminium alloy, aluminium oxide (alumina or sapphire), nickel, nickel alloy with more than 60% nickel by weight, or fully fluorinated hydrocarbon polymers; and
c. Having either of the following characteristics:
1. A full scale of less than 13 kPa and an 'accuracy' of better than 1% of full‑scale; or
2. A full scale of 13 kPa or greater and an 'accuracy' of better than 130 Pa when measuring at 13 kPa.
Technical Note:
For the purposes of 2B230, 'accuracy' includes non‑linearity, hysteresis and repeatability at ambient temperature.
2. B. 231. Vacuum pumps having