Document ID: chunk:federal_register_of_legislation:F2006L02312:body:0:p11
Version: federal_register_of_legislation:F2006L02312
Segment Type: other
Provision Reference: 
Character Range: 28017–30546

surfaces with a radius of  curvature equal to 82 ± 3 mm and a width:

3.1.1.1. at least equal to the width of the seat-back of each  seating position of the seat to be tested for the upper form,

3.1.1.2. equal to 320 - 0mm, + 10 mm for the lower form as shown in  Figure 2 of this annex.

3.1.2. The surface resting against the parts of the seat shall  be made of a material the hardness of which is not less than 80 Shore A.

3.1.3. Each cylindrical surface shall be equipped with at least  one force transducer able to measure the forces applied in the direction defined in paragraph 3.2.1.1. of this annex.

3.2. Test procedure

3.2.1. A test force to 1,000/H1 + 50 N shall be applied using a device, conforming to paragraph 3.1. of this annex, to the rear part of the seat corresponding to each seating position of the seat.

3.2.1.1. The direction of application of the force shall be  situated in the vertical median plane of the seating position concerned, it shall be horizontal and from the rear towards the front of the seat.

3.2.1.2. This direction shall be situated at the height H1 which  shall be between 0.70 m and 0.80 m and above the reference plane.  The exact height shall be determined by the manufacturer.

3.2.2. A test force equal to 2,000/H2 + 100 N shall be  applied simultaneously to the rear part of the seat corresponding to each seating position of the seat in the same vertical plane and in the same direction at the height H2 which shall be between 0.45 and 0.55 m above the reference plane, with a device conforming to paragraph 3.1. of this annex.  The exact height shall be determined by the manufacturer.

3.2.3. The test forms shall be maintained as far as possible in  contact with the rear of the seat during the application of the forces specified in paragraphs 3.2.1. and 3.2.2. of this annex.  They shall be able to pivot in a horizontal plane.

3.2.4. Where a seat consists of more than one seating position,  the forces corresponding to each seating position shall be applied simultaneously and there shall be as many upper and lower forms as seating positions.

3.2.5. The initial position of each seating position of each of  the forms shall be determined by bringing the test devices into contact with the seat with a force equal to at least 20 N.

3.2.6. The forces indicated in paragraph 3.2.1. and 3.2.2.  shall be applied as rapidly as possible and shall be maintained together at the specified value, whatever the deformation, for at least 0.2 seconds.

3.2.7. If the test has