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Amendment to IS 18258:20231 SCOPE
It applies to new pneumatic tyres of classes C1, C2
and C3 with regard to their sound emissions, rolling
resistance and to adhesion performance on wet
surfaces (wet adhesion). It does not, however, apply
to:
a) Tyres designed as Temporary use spare tyres
and marked ‘Temporary use only’;
b) Tyres having a nominal rim diameter code
≤ 10 (or ≤ 254 mm) or ≥ 25 (or ≥ 635 mm);
c) Tyres designed for competitions;
d) Tyres intended to be fitted to road vehicles of
categories other than M, N and T;
e) Tyres fitted with additional devices to improve
traction properties (for example, studded
tyres);
f) Tyres with a speed rating less than 80 km/h
(speed symbol F); and
g) Professional off-road tyres. |