Division 2 Definitions

For the purposes of this Annex, in addition to the definitions contained in UN/ECE Regulation No. 54 and in UN/ECE Regulation No.117, the following definitions shall apply:

1. (1)

   ‘Rolling resistance coefficient C_r’ means a ratio of the rolling resistance to the load on the tyre

2. (2)

   ‘The load on the tyre F_ZTYRE’ means a load applied to the tyre during the rolling resistance test.

3. (3)

   ‘Type of tyre’ means a range of tyres which do not differ in such characteristics as:

   1. (a)

      Manufacturer's name;

   2. (b)

      Brand name or trade mark

   3. (c)

      Tyre class (in accordance with Regulation (EC) No 661/2009)

   4. (d)

      Tyre-size designation;

   5. (e)

      Tyre structure (diagonal (bias-ply), radial);

   6. (f)

      Category of use (normal tyre, snow tyre, special use tyre) as defined in UN/ECE Regulation No.117;

   7. (g)

      Speed category (categories);

   8. (h)

      Load-capacity index (indices);

   9. (i)

      Trade description/commercial name;

   10. (j)

       Declared tyre rolling resistance coefficient