# Commission Regulation (EU) No 672/2010 of 27 July 2010 concerning type-approval requirements for windscreen defrosting and demisting systems of certain motor vehicles and implementing Regulation (EC) No 661/2009 of the European Parliament and of the Council concerning type-approval requirements for the general safety of motor vehicles, their trailers and systems, components and separate technical units intended therefor, Article 2: Definitions

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

For the purposes of this Regulation, the following definitions shall apply:
1.. ‘vehicle type with regard to the windscreen defrosting and demisting systems’ means vehicles which do not differ in such essential respects as:
the characteristics of the defrosting and demisting systems,
the external and internal forms and arrangements within the 180° forward field of vision area of the driver which may affect visibility,
the shape, size, thickness and characteristics of the windscreen and its mounting,
the maximum number of seating positions;
2.. ‘engine’ means a combustion engine running on either liquid or gaseous fuel;
3.. ‘defrosting system’ means the system intended to eliminate frost or ice on the outside surface of the windscreen;
4.. ‘defrosted area’ means the area of the windscreen having a dry outside surface or an outside surface covered with melted or partially melted wet frost which can be removed by the vehicle’s windscreen wiper system;
5.. ‘demisting system’ means the system intended to remove mist on the inside surface of the windscreen;
6.. ‘mist’ means a film of condensate on the inside face of the glazed surface of the windscreen;
7.. ‘demisted area’ means the area of the windscreen having a dry inside surface, without any drops or traces of water, after previously being covered by mist;
8.. ‘vision area A’ means test area A as defined in paragraph 2.2 of Annex 18 of UN-ECE Regulation 43;
9.. ‘vision area B’ means reduced test area B as defined in paragraph 2.4 of Annex 18 of UN-ECE Regulation 43, without the exclusion of the area defined in paragraph 2.4.1 thereof;
10.. ‘design torso angle’ means the angle measured between a vertical line through the R-point or seating reference point and the torso line in a position which corresponds to the design position of the seat-back as declared by the vehicle manufacturer;
11.. ‘R-point’ or seating reference point means the design point defined by the vehicle manufacturer for each seating position with respect to the three-dimensional reference system;
12.. ‘three-dimensional reference system’ means a reference grid which consists of a vertical longitudinal plane X-Z, a horizontal plane X-Y and a vertical transverse plane Y-Z in accordance with the provisions of Appendix 2 of Annex II;
13.. ‘primary reference marks’ means holes, surfaces, marks or other identification signs on the vehicle body or chassis of which the X, Y and Z coordinates within the three-dimensional reference grid are specified by the vehicle manufacturer;
14.. ‘vehicle master control switch’ means the device by which the vehicle’s on-board electronics system is brought from being switched off, as is the case when a vehicle is parked without the driver being present, to normal operation mode.

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Source: https://www.legislation.gov.uk/eur/2010/672/article/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2010-672/article-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.