<p>This document specifies the method for measuring 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.</p>
<p>The methods developed in this document are meant to reduce the variability. The use of a reference tyre is necessary to limit the variability of the testing method procedures.</p>
<p>This document applies to all commercial vehicle, truck and bus tyres.</p>
<p>This document does not apply to:</p>
<p>— tyres fitted with additional devices to improve traction properties (e.g. studded tyres);</p>
<p>— professional off-road tyres.</p>
Registration number (WIID)
87320
Scope
<p>This document specifies the method for measuring 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.</p>
<p>The methods developed in this document are meant to reduce the variability. The use of a reference tyre is necessary to limit the variability of the testing method procedures.</p>
<p>This document applies to all commercial vehicle, truck and bus tyres.</p>
<p>This document does not apply to:</p>
<p>— tyres fitted with additional devices to improve traction properties (e.g. studded tyres);</p>
<p>— professional off-road tyres.</p>
