Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p111
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 311889–314822

2. B. 206. b. 3. Measuring systems having both of the following characteristics:
     a. Containing a laser; and
2. B. 206. b. 3. b. Capable of maintaining for at least 12 hours, over a temperature range of ± 1 K (± 1ºC) around a standard temperature and a standard pressure:
1. A "resolution" over their full scale of 0.1 μm or better; and
2. With a "measurement uncertainty" equal to or better (less) than (0.2 + L/2000) μm (L is the measured length in millimeters);
                   Note: Item 2B206.b.3. does not apply to measuring interferometer systems, without closed or open loop feedback, containing a laser to measure slide movement errors of machine tools, dimensional inspection machines, or similar equipment.
Technical Note:
In Item 2B206.b. 'linear displacement' means the change of distance between the measuring probe and the measured object.
2. B. 206. c. Angular displacement measuring instruments having an "angular position deviation" equal to or better (less) than 0.00025°;
Note: Item 2B206.c. does not apply to optical instruments, such as autocollimators, using collimated light (e.g., laser light) to detect angular displacement of a mirror.
2. B. 206. d. Systems for simultaneous linear‑angular inspection of hemishells, having both of the following characteristics:
1. "Measurement uncertainty" along any linear axis equal to or less (better) than 3.5 µm per 5 mm; and
2. "Angular position deviation" equal to or less than 0.02°.
Note 1: 2B206 includes machine tools, other than those specified by 2B201, that can be used as measuring machines if they meet or exceed the criteria specified for the measuring machine function.
Note 2: A machine specified by 2B206 is controlled if it exceeds the control threshold anywhere within its operating range.
       Technical Note:
       All parameters of measurement values in 2B206 represent plus/minus i.e. not total band.
2. B. 207. "Robots", "end‑effectors" and control units, other than those specified by 2B007, as follows:
a. "Robots" or "end‑effectors" specially designed to comply with national safety standards applicable to handling high explosives (for example, meeting electrical code ratings for high explosives);
b. Control units specially designed for any of the "robots" or "end‑effectors" specified by 2B207.a.
2. B. 209. Flow forming machines, spin forming machines capable of flow forming functions, other than those specified by 2B009 or 2B109, and mandrels, as follows:
a. Machines having both of the following characteristics:
1. Three or more rollers (active or guiding); and
2. Which, according to the manufacturer's technical specification, can be equipped with "numerical control" units or a computer control;
b. Rotor-forming mandrels designed to form cylindrical rotors of inside diameter between 75 mm and 650 mm.
Note: 2B209.a. includes machines which have only a single roller designed to deform metal plus two auxiliary rollers