Document ID: chunk:federal_register_of_legislation:F2005L03992:body:0:p27
Version: federal_register_of_legislation:F2005L03992
Segment Type: other
Provision Reference: 
Character Range: 70662–73339

be adjusted to meet the requirement by altering the friction characteristics of the flesh-skull interface (eg. by lubrication with talcum powder or PTFE spray).
    5.6. Neck
    5.6.1. The head-neck interface of the neck is mounted to a special symmetrical certification headform with a mass of 3.9  0.05 kg (see figure 4).
    5.6.2. The headform and neck are mounted upside-down to the bottom of a neck-bending pendulum allowing a lateral motion of the system.
    5.6.3. The neck-pendulum is equipped with a uniaxial accelerometer mounted at 1,655  5 mm from the pendulum pivot.
    5.6.4. The neck-pendulum should be allowed to fall freely from a height chosen to achieve an impact velocity of 3.4  0.1 m/s measured at the accelerometer location.
    5.6.5. The neck-pendulum is decelerated from impact velocity to zero by an appropriate device, resulting in a deceleration-time history inside the corridor specified in figure 5 of this annex.  All channels have to be recorded using ISO CFC 1000 filters and filtered digitally using CFC 60.
    5.6.6. The maximum headform flexion angle relative to the pendulum should be 51  5 degrees and should occur between 50 and 62 ms.
    5.6.7. The maximum headform centre of gravity displacements in the lateral and vertical direction should be 97  10 mm and 26  6 mm respectively.
    5.6.8. The neck performance can be adjusted by replacing the circular section buffers with buffers of a different shore hardness.
    5.7. Shoulder
    5.7.1. The length of the elastic cord should be adjusted so that a force between 27.5 N 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 of 23.5 - 0.0/+ 0.2 kg and 152  2 mm diameter.  The impactor is suspended from a rigid support by four wires with the centre line of the impactor at least 3.5 m below the rigid support.
    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