(a) A push-button-actuated buckle, at least 3.2 mm from the edge of the push-button access opening of the buckle, or

(b) A lever-actuated buckle, on the centreline of the buckle lever or finger tab.

(a) With the ATD supine on a horizontal surface, and with a hand placed on its torso to prevent it from moving, lift the feet of the ATD until the legs touch the upper torso and the feet touch the head or as far as they will go. Slowly release the legs, allowing them to come to rest of their own accord. Do not return them to the flat surface.

(b) Place the ATD in the restraint system so that its back is in contact with the back support of the system. Attach the belts and the upper and lower torso restraints of the system.

(c) Tighten the belts and upper and lower torso restraints until a 9-N force applied using a webbing tension pull device (as illustrated in Figure 3) to the webbing at the top of each shoulder and, if applicable, to the pelvic webbing 50 mm on either side of the mid-sagittal plane of the torso pulls the webbing a distance of 7 mm away from the ATD.

(d) Rotate each limb of the ATD downward in a plane parallel to its mid-sagittal plane until the limb is in contact with a surface of the restraint system or the standard seat assembly. The movement of the arms must not be restricted in any but the downward direction.

(a) until August 31, 2002, not less than 31 N and not more than 49 N or, at the option of the manufacturer, not less than 53.5 N and not more that 67 N; and

(b) on or after September 1, 2002, not less than 53.5 N and not more than 67 N.

(a) With the ATD supine on a horizontal surface, and with a hand placed on its torso to prevent it from moving, lift the feet of the ATD until the legs touch the upper torso and the feet touch the head or as far as they will go. Slowly release the legs, allowing them to come to rest of their own accord. Do not return them to the flat surface.

(b) Place the ATD in the restraint system so that its back is in contact with the back support of the system. Attach the belts and the upper and lower torso restraints of the system.

(c) Tighten the belts and upper and lower torso restraints until a 9-N force applied using a webbing tension pull device (as illustrated in Figure 4) to the webbing at the top of each shoulder and, if applicable, to the pelvic webbing 50 mm on either side of the mid-sagittal plane of the torso pulls the webbing a distance of 7 mm away from the ATD.

(d) Rotate each limb of the ATD downward in a plane parallel to its mid-sagittal plane until the limb is in contact with a surface of the restraint system or the standard seat assembly. The movement of the arms must not be restricted in any but the downward direction.

(a) Adjust rigid lower connectors in accordance with the manufacturer's instructions;

(b) If a tether strap has been provided, tighten it to a tension of not less than 53.5 N and not more than 67 N, as measured by a force gauge used on the webbing.

(a) Where lower connectors are supplied on the base only, the tests described in subsections 3.4 and 3.5 are to be conducted for the seating component and the tests described in subsections 3.4 to 3.7 are to be conducted for the base;

(b) Where lower connectors are supplied on both the base and the seating component, the tests described in subsections 3.4 to 3.7 are to be conducted for both the base and the seating component.

(a) For systems that are not car beds, tie a self-adjusting sling to the wrists and ankles of the ATD, as illustrated in Figure 4. For car beds, use the self-adjusting sling illustrated in Figure 5.

(b) While applying a pullout force of 9 N to the buckle assembly in a direction that will produce maximum releasing effect, pull the sling horizontally and parallel to the SORL of the standard seat assembly with a force of 90 N if the system is not a car bed. For car beds, pull the sling vertically with a force of 90 N.

Note: If the restraint system is equipped with a T-shield, a force equivalent to its mass must be added to the pullout force. Any shield, if present, may be adjusted to facilitate application of the pullout force, provided that the harness tension is not significantly affected.

(c) In order to determine the buckle's conformance to the requirements of section 7 of Schedule 7 to the RSSRs, apply the specified force in a direction that will produce maximum releasing effect, in the case of

(d) If the force required to release the buckle exceeds the requirements of Schedule 7 to the RSSRs, release the harness tension and apply a force of 22 to 44 N to the lowest accessible part of the tongue 2 to 4 times in each of four directions at 90-degree angles to each other.

(e) Repeat paragraphs (b) and (c) above while applying a pullout force on the buckle assembly of 22 N, re-orienting the direction of the sling pull force if necessary so that the arms of the ATD do not load the shield.

(f) If the buckle does not release at the force specified in Schedule 7 to the RSSRs, repeat paragraphs (b) and (c) once again using a pullout force of 44 N.

- Standard Specification for Flexible Cellular Materials—Sponge or Expanded Rubber, Designation No. D 1056-91;

- Standard Specification for Flexible Cellular Materials—Vinyl Chloride Polymers and Copolymers (Open-Cell Foam), Designation No. D 1565-81 (Reapproved 1990); or

- Standard Test Methods for Flexible Cellular Materials—Slab, Bonded, and Molded Urethane Foams, Designation No. D 3574-95.