Document ID: chunk:federal_register_of_legislation:F2025L00028:reg:16:p3
Version: federal_register_of_legislation:F2025L00028
Segment Type: reg
Provision Reference: reg 16 (pt 3/4)
Character Range: 118950–121494

including 49.0 and 59.0 degrees and should occur between and including 54.0 and 66.0 ms.
5.6.7.  The maximum head-form centre of gravity displacements measured in angle dθA and dθB (see Figure 6) should be: Fore pendulum base angle dθA between and including 32.0 and 37.0° occurring between and including 53.0 and 63.0 m/s and aft pendulum base angle dθB between and including 0.81*(angle dθA) +1.75 and 0.81*(angle dθA) +4.25° occurring between and including 54.0 and 64.0 m/s.
5.6.8. The neck performance can be adjusted by replacing the eight circular section buffers with buffers of another shore hardness.
5.7. Shoulder
5.7.1. The length of the elastic cord should be adjusted so that a force between and including 27.5 and 32.5 N applied in a forward direction 4 ± 1 mm from the outer edge of the clavicle in the same plane as the clavicle movement, is required to move the clavicle forward.
5.7.2. The dummy is seated on a flat, horizontal, rigid surface with no back support. The thorax is positioned vertically and the arms should be set at an angle of 40 ± 2° forward to the vertical. The legs are positioned horizontally.
5.7.3.  The impactor is a pendulum with a mass of 23.4 ± 0.2 kg and diameter of 152.4 ± 0.25 mm with an edge radius of 12.7 mm.[12] The impactor is suspended from rigid hinges by four wires with the centre line of the impactor at least 3.5 m below the rigid hinges (see Figure 4).
5.7.4. The impactor is equipped with an accelerometer sensitive in the direction of impact and located on the impactor axis.
5.7.5. The impactor should freely swing onto the shoulder of the dummy with an impact velocity of 4.3 ± 0.1 m/s.
5.7.6. The impact direction is perpendicular to the anterior-posterior axis of the dummy and the axis of the impactor coincides with the axis of the upper arm pivot.
5.7.7. The peak acceleration of the impactor, filtered using ISO 6487:2000 CFC 180, should be between and including 7.5 and 10.5 g.
5.8. Arms
5.8.1. No dynamic certification procedure is defined for the arms.
5.9. Thorax
5.9.1. Each rib module is certified separately.
5.9.2. The rib module is positioned vertically in a drop test rig and the rib cylinder is clamped rigidly onto the rig.
5.9.3. The impactor is a free fall mass of 7.78 ± 0.01 kg with a flat face and a diameter of 150 ± 2 mm.
5.9.4. The centre line of the impactor should be aligned with the centre line of the rib's guide system.
5.9.5.  The impact severity is specified by the drop heights of 815, 204 and 459 mm. These drop heights result in velocities of