Time Recording. The instrumentation shall enable the action to be recorded throughout its duration and readings to be made to within one one-thousandth of a second; * The relationship of the reduced mass "mr" of the pendulum to the total mass "m" of the pendulum at a distance "a" between the centre of percussion and the axis of rotation and at a distance "l" between the centre of gravity and the axis of rotation is given by the formula: l mr = m a The beginning of the impact at the moment of first contact between the headform and the item being tested shall be detected on the recordings used for analysing the test.
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Sources: Agreement Concerning the Adoption of Harmonized Technical United Nations Regulations for Wheeled Vehicles, Agreement Concerning the Adoption of Harmonized Technical United Nations Regulations for Wheeled Vehicles, Agreement Concerning the Adoption of Harmonized Technical United Nations Regulations for Wheeled Vehicles
Time Recording. The instrumentation shall enable the action to be recorded throughout its duration and readings to be made to within one one-thousandth of a second; * The relationship of the reduced mass "mr" of the pendulum to the total mass "m" of the pendulum at a distance "a" between the centre of percussion and the axis of rotation and at a distance "l" between the centre of gravity and the axis of rotation is given by the formula: l mr = m a The beginning of the impact at the moment of first contact between the headform and the item being tested shall be detected on the recordings used for analysing the test.
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