# Commission Regulation (EC) No 631/2009 of 22 July 2009 laying down detailed rules for the implementation of Annex I to Regulation (EC) No 78/2009 of the European Parliament and of the Council on the type-approval of motor vehicles with regard to the protection of pedestrians and other vulnerable road users, amending Directive 2007/46/EC and repealing Directives 2003/102/EC and 2005/66/EC, Division 3.3.6

Extent: E+W+S+N.I.

The impactor with the front member vertical shall be propelled horizontally at a velocity of 7,1 ± 0,1 m/s into the stationary pendulum as shown in Figure 6.
The pendulum tube shall have a mass of 3 ± 0,03 kg, an outside diameter of 150 mm + 1 mm/- 4 mm and a wall thickness of 3 ± 0,15 mm. Total pendulum tube length shall be 275 ± 25 mm. The pendulum tube shall be made from cold finished seamless steel (metal surface plating is permissible for protection from corrosion), with an outer surface finish of better than 2,0 micrometers. It shall be suspended on two wire ropes of 1,5 ± 0,2 mm diameter and of 2,0 m minimum length. The surface of the pendulum shall be clean and dry. The pendulum tube shall be positioned so that the longitudinal axis of the cylinder is perpendicular to the front member (i.e. level), with a tolerance of ±2°, and to the direction of impactor motion, with a tolerance of ±2°, and with the centre of the pendulum tube aligned with the centre of the impactor front member, with tolerances of ±5 mm laterally and ±5 mm vertically.

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Source: https://www.legislation.gov.uk/eur/2009/631/annex/part/V/division/appendix+i/division/3/division/3.3/division/3.3.6 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-631/annex/part-V/division-appendix+i/division-3/division-3.3/division-3.3.6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.