<p>ISO 26865:2009 applies to commercial vehicles of the categories M2, M3, N2, N3, O3 and O4, as defined in UNECE R.E.3, which are equipped with air brakes.</p>
<p>ISO 26865:2009 applies during product development, product prototypes, product specification or validation, and ongoing series production, as defined in ISO 15484.</p>
<p>When used in conjunction with other applicable standards or test procedures, ISO 26865:2009 is intended to provide a complete assessment of a friction material's adequacy for use in a certain application, market or vehicle platform.</p>
<p>ISO 26865:2009 does not include performance requirements related to stopping distance or braking force distribution, under different vehicle conditions of speed, temperature, tyre-to-road adhesion, loads and operating conditions of the braking system, as indicated in Federal Codes or Regulations.</p>
<p>ISO 26865:2009 specifies a single-ended inertia-dynamometer performance procedure, which is intended to standardize the various procedures for commercial vehicles equipped with air brakes into one unique procedure covering all performance requirements of interest.</p>
<p>The test sequence includes performance evaluation for the following conditions:</p>
<ul>
<li> performance test before and after bedding;</li>
<li> brake fade after bedding and after moderate temperature;</li>
<li> sensitivity to temperature, speed and pressure influence;</li>
<li> downhill simulation;</li>
<li> brake recovery.</li>
</ul>
Registration number (WIID)
43846
Scope
<p>ISO 26865:2009 applies to commercial vehicles of the categories M2, M3, N2, N3, O3 and O4, as defined in UNECE R.E.3, which are equipped with air brakes.</p>
<p>ISO 26865:2009 applies during product development, product prototypes, product specification or validation, and ongoing series production, as defined in ISO 15484.</p>
<p>When used in conjunction with other applicable standards or test procedures, ISO 26865:2009 is intended to provide a complete assessment of a friction material's adequacy for use in a certain application, market or vehicle platform.</p>
<p>ISO 26865:2009 does not include performance requirements related to stopping distance or braking force distribution, under different vehicle conditions of speed, temperature, tyre-to-road adhesion, loads and operating conditions of the braking system, as indicated in Federal Codes or Regulations.</p>
<p>ISO 26865:2009 specifies a single-ended inertia-dynamometer performance procedure, which is intended to standardize the various procedures for commercial vehicles equipped with air brakes into one unique procedure covering all performance requirements of interest.</p>
<p>The test sequence includes performance evaluation for the following conditions:</p>
<ul>
<li> performance test before and after bedding;</li>
<li> brake fade after bedding and after moderate temperature;</li>
<li> sensitivity to temperature, speed and pressure influence;</li>
<li> downhill simulation;</li>
<li> brake recovery.</li>
</ul>
