Document ID: chunk:federal_register_of_legislation:F2006L02676:body:0:p4
Version: federal_register_of_legislation:F2006L02676
Segment Type: other
Provision Reference: 
Character Range: 10679–14110

the release control shall be readily accessible to the occupant of that 'Seat' and to the occupant of any 'Seat' immediately behind that 'Seat'.
3.2.3.2.                        The restraining device (including the release control) shall be constructed to preclude inertial release when loaded longitudinally in each direction to 20 times the acceleration due to gravity.
3.2.3.3.                        The restraining device shall not release or fail when a 'Forward' longitudinal load equal to 20 times the mass of the entire seat-back is applied at the centre of gravity of the seat-back.
3.2.3.4.                        If non-self-locking auxiliary latches are provided they shall be unlatched during testing so that only the restraining device and hinges are taking the test loads.
3.2.3.5.                        Where 'Seats' are mounted on hinged covers, e.g. engine covers, and the 'Seat' assembly can withstand the test loads without tilting of the hinged cover and without any latches being latched, then the latches need not be self-locking.
3.3.                                    TEST  PROCEDURE
3.3.1.                              General
3.3.1.0. Static or dynamic testing techniques may be used.
3.3.1.1.                        The 'Seat' travel stops shall not take any part of the test load.
3.3.1.2.                        Hinged 'Seats', or 'Seats' with backs which are adjustable for passenger comfort only, shall be tested with the seat-back at the design 'Seat Back Angle'.
3.3.2.                              Static Test Conditions
3.3.2.1.                        Static testing of 'Seats' shall be conducted in accordance with SAE document J879b "Motor Vehicle Seating Systems", July 1968 using the values specified in and the procedures applicable to this Rule.
3.3.2.2.                        Distributed loads may be replaced by concentrated loads at the loading centroid.
3.3.2.3.                        Specified loads shall be sustained for at least one second.
3.3.3.                              Dynamic Test Conditions
         3.3.3.0. Dynamic testing shall be conducted at the vehicle 'Manufacturer's' choice either to Clause 3.3.3.1 or 3.3.3.2.
3.3.3.1.                        Dynamic testing may be carried out in accordance with the dynamic test procedure of EEC Directive 74/408/EEC- "Strength of Seats and their Anchorages"  for front-facing 'Seats' which are not 'Folding Seats' - (i.e. auxiliary-seats intended for occasional use and normally folded) and which do not incorporate any built-in seat-belt 'Anchorages'.
3.3.3.2.                        Alternatively, the following criteria shall be met:
3.3.3.2.1.                  The acceleration pulse applied shall be such that all the parts of the 'Seat' and supporting structure which anchors it to the vehicle have at least an acceleration of 20 times the acceleration due to gravity simultaneously in the same direction; and
3.3.3.2.1.1.            any additional forces due to the loading of seat-belt 'Anchorages' or 'Child Restraint Anchorages' shall be achieved simultaneously with the acceleration required in Clause 3.3.3.2.1 above.
3.3.3.3.                        Copies shall be kept of:
3.3.3.3.1.                  traces recorded for all acceleration and force measurements used during the test, with the scales shown thereon; and
3.3.3.3.2.                  photographs of the 'Seat' and supporting structure (including