3.4.1.3.

The snow grip index (SG) of a candidate tyre Tn shall be computed [DEL] from the arithmetic mean  of the mfdd of the tyre Tn and the applicable weighted average waSRTT of the SRTT as shown in the table:

where f is given in the following table

 a5c0
3.4.1.3.

a3c0
3.4.1.3. The snow grip index (SG) in per cent of a candidate tyre shall be computed as: a0c0