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ISO 15222:2025

Truck and bus tyres — Method for measuring relative wet grip performance — Loaded new tyres

Dec 1, 2025

General information

60.60     Dec 1, 2025

ISO

ISO/TC 31

International Standard

83.160.10  

English  

Buying

Published

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Scope

This document specifies the method for measuring the relative wet grip braking performance index to a reference under loaded conditions for new tyres for use on commercial vehicles on a wet-paved surface.
NOTE            The methods developed in this document are intended to reduce variability. A reference tyre is used to limit the variability of the testing method procedures.
This document applies to all commercial vehicle, truck and bus tyres.
This document does not apply to:
—     tyres fitted with additional devices to improve traction properties (e.g. studded tyres);
—     professional off-road tyres.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 15222:2021

NOW

PUBLISHED
ISO 15222:2025
60.60 Standard published
Dec 1, 2025