Nuclear Non-proliferation Import and Export Control Regulations — B.2.1.3
B.2.1.3 Dimensional inspection machines, instruments or systems, as follows, and software specially designed for those machines, instruments or systems: (a) computer controlled or numerically controlled coordinate measuring machines having either of the following characteristics: (1) only two axes and a maximum permissible error (MPE) of length measurement along any axis (one-dimensional), identified as any combination of E 0x MPE , E 0y MPE or E 0z MPE , equal to or less (better) than (1.25 + L/1 000) μm (where L is the measured length in mm) at any point within the operating range of the machine (i.e., within the length of the axis), according to ISO 10360-2:2009; (2) three or more axes and a maximum permissible error (MPE) of three-dimensional (volumetric) length measurement (E 0 MPE ) equal to or less (better) than (1.7 + L/800) μm (where L is the measured length in mm) at any point within the operating range of the machine (i.e., within the length of the axis), according to ISO 10360-2:2009; (b) linear displacement measuring instruments, as follows: (1) non-contact type measuring systems with a resolution equal to or better (less) than 0.2 µm within a measuring range of up to 0.2 mm; (2) linear variable differential transformer systems having both of the following characteristics: (i) linearity equal to or better (less) than 0.1% within a measuring range of up to 5 mm; and (ii) drift equal to or better (less) than 0.1% per day at a standard ambient test room temperature of ± 1 K; or (3) measuring systems that have both of the following characteristics: (i) contain a laser; and (ii) maintain for at least 12 hours over a temperature range of ± 1 K around a standard temperature and a standard pressure: (A) a resolution over their full scale of 0.1 µm or better; and (B) a measurement uncertainty equal to or better (less) than (0.2 + L/2 000) µm (L is the measured length in millimeters); NOTE Paragraph B.2.1.3(b)(3) does not include 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. (c) angular measuring instruments having an angular position deviation equal to or better (less) than 0.00025°; and NOTE Paragraph B.2.1.3.(c) does not include optical instruments, such as autocollimators, using collimated light (e.g. laser light) to detect angular displacement of a mirror. (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 better (less) than 3.5 µm per 5 mm; and (2) angular position deviation equal to or less than 0.02°. NOTE Specially designed software for these systems includes software for simultaneous measurements of wall thickness and contour. NOTE With respect to paragraph B.2.1.3.: (a) machine tools that can be used as measuring machines are included if they meet or exceed the criteria specified for the machine tool function or the measuring machine function; (b) machines are included if they exceed the control threshold anywhere within their operating range; and (c) [Repealed, SOR/2025-196, s. 52] (d) all parameters of measurement values in paragraph B.2.1.3. represent plus/minus, i.e. not total band.