Presentation in support of the proposal to delete the static test procedure for seat strength (document GRSP-62-12) from UN R80.

Video clip use in study presentation.

Video clip use in study presentation.

Presentation in support of the proposal to delete the static test procedure for seat strength (document GRSP-62-12) from UN R80.

Research has shown that dynamic testing under Appendix 1 is more demanding than the static testing under Appendix 5. As a result, approvals based upon static testing are not equivalent to approvals based on dynamic testing. This proposal, therefore, would delete Appendix 5. In addition, this proposal amends Appendix 1 by reducing the forward movement of the head of the manikin to 1.2 m in alignment with UN Regulation No. 14. Further, the proposal would limit the movement of the seat anchorages to 100 mm to ensure a minimum residual space for the passenger between the seats. Lastly, to ensure that seat fixations are reliably fastened after relocation, the proposal would require the necessary information to be marked directly on the seat and provided in the owner’s manual.

Under UN R80, head restraints must comply with the requirements of UN R25. This proposal updates the reference to UN R25 to specify compliance according to the 04 series of amendments (from the current reference to the 03 series of amendments). This change thus updates UN R80 to incorporate changes in impact-energy dissipation criteria made to UN R25 pursuant to changes allowing greater forward displacement of occupants under UN R16.