Instrument description:
* applicable standards :GB/T 35270-2017 standards for infant straps (bags) require that the straps (bags) be fixed on a rigid fixation device so that the leg opening is in a horizontal position during the test. If the size of the leg opening is adjustable, the leg opening should be adjusted to the minimum according to the manual of the straps (bags).Slowly to the quality of 2.27 KG + 0.02 KG, diameter: 120 mm + 2 mm Φ surface composed of rigid smooth material test the ball to the leg opening is put inside the 5 s, and keep the 1 min, repeat this step on another leg openings.Note: additional stretching force is not allowed to be applied to the leg opening when the strap (bag) is fixed to prevent obstruction when the test ball passes through the opening.
Instrument specification:
* one set of leg opening fixtures
* test ball: 2.27 KG + 0.02 KG, diameter: 120 mm Φ + 2 mm
* timer: 1-9999h.m.s. adjustable
* overall dimension (MM): no less than 500*331*900