The design of any such test apparatus shall ensur
e that the required acceleration is given before the webbing is withdrawn out of the retractor by more than 5 mm and that the withdrawal takes
place at an average rate of increase of acceleration of at least 55 g/s and not more than
150 g/s in testing sensitivity for strap movement and of at least 25 g/s and not more than 150 g/s in testing sensitivity for vehicl
...[+++]e deceleration.