Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

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This document was prepared by Technical Committee ISO/TC 31, Tyres, rims and valves, Subcommittee SC 6, Off-the-road tyres and rims.

This fifth edition cancels and replaces the fourth edition (ISO 4250‑3:2011), which has been technically revised.

The main changes compared to the previous edition are as follows:

— in Table 1, new codes were added and obsolete codes were removed;
— in Table 2, CR rim width codes were added;
— Table 3 and Figure 3 were added;
— in Table A.1, new sizes were added and obsolete sizes were removed.

A list of all parts in the ISO 4250 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

BS ISO 4250-3:2020

Earth-mover tyres and rims - Rims

Current, Under Review

Published:

30 Sep 2020