1、Tyre classification Agricultural, forestry and construction machinesBS ISO 18805:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of ISO 18805:2017.The UK participation in its preparation was entruste
2、d to Technical Committee AUE/4, Tyres and wheels for motor vehicles.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applica
3、tion. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 84217 7ICS 83.160.30Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Commit
4、tee on 31 October 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 18805:2017 ISO 2017Tyre classification Agricultural, forestry and construction machinesClassification des pneumatiques Machines agricoles, engins forestiers et engins de constructionINTERNAT
5、IONAL STANDARDISO18805First edition2017-09-15Reference numberISO 18805:2017(E)BS ISO 18805:2017ISO 18805:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced
6、 or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO
7、copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 18805:2017ISO 18805:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Tyre classification and tyre nomenclature . 1
8、 ISO 2017 All rights reserved iiiContents PageBS ISO 18805:2017ISO 18805:2017(E)ForewordISO (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 I
9、SO 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
10、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 criter
11、ia 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).Attention is drawn to the possibility that some of the elements of this document may be the subject of p
12、atent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name us
13、ed in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the
14、 World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 31, Tyres, rims and valves, Subcommittee SC 5, Agricultural tyres and rims.iv ISO 2017 All rights reserved
15、BS ISO 18805:2017Tyre classification Agricultural, forestry and construction machines1 ScopeThis document specifies the classification codes for agricultural and forestry tractors and machines.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of
16、 their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4223-1, Definitions of some terms used in the tyre industry Part 1: Pneumatic t
17、yres3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 42231 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platfor
18、m: available at http:/www.iso.org/obp 4 Tyre classification and tyre nomenclatureDefinitions of tyres depending on their purpose are given in Table 1.Nomenclature and classification code markings are given in Table 2.The classification code is not part of the size marking and its use is optional. Wh
19、en used, the code shall be clearly separated from the size marking on the tyres.Table 1 Definition of tyres depending on their purposeTractor-drive wheel tyreA tyre designed to be fitted to driven axles of agricultural and forestry tractors suitable for sustained high torque service.Tractor-steering
20、 wheel tyreA tyre designed to be fitted to nondriven axles of agricultural and forestry tractors.Implement tyreA tyre designed primarily for agricultural machines or implements or for agri-cultural trailers that is not suitable for sustained high torque service.Traction tyreA tyre designed primarily
21、 for the equipment of driven (trailed) axles of imple-ments or agricultural machinery, excluding sustained high torque services.Trailer tyreA tyre designed for the equipment of non-driven (trailed) axles of implements agricultural machinery or trailers.Logging and forestry service tyreSpecial design
22、 agricultural tyre suitable for forestry application.High flotation tyresA class of tyres designed with larger volume that may provide lower surface contact pressure than tyres with similar overall diameters typically with a three-part size designation.(Nominal overall diameter Nominal section width
23、 Rim diameter code)INTERNATIONAL STANDARD ISO 18805:2017(E) ISO 2017 All rights reserved 1BS ISO 18805:2017ISO 18805:2017(E)Table 2 Tyre classification code and tyre nomenclatureClassification code Tyre nomenclatureR Agricultural tractor drive wheel tyresR-1R-1WR-1SR-2R-3R-4Regular service (tread)We
24、t traction serviceSprayer/spreader serviceCane and rice service (deep tread)Flotation service (shallow tread)Industrial service (construction application)F Agricultural tractor steering wheel tyres (non-traction pattern)F-1F-2F-3Agricultural single rib treadAgricultural multiple rib treadIndustrial
25、service (construction application)I Agricultural implement tyresI-1I-2I-3I-4I-5I-6Multi-rib treadModerate traction serviceTraction treadPlow tail wheel serviceSteering serviceSmooth treadG Garden tractor tyres (implement tyres)G-1G-2G-3Regular traction serviceTurf traction serviceMaximum flotation s
26、erviceLS Logging and forestry service tyresLS-1LS-2LS-3LS-4Regular treadIntermediate treadDeep treadShallow treadHF High flotation tyresHF-1HF-2HF-3HF-4Shallow treadRegular treadDeep treadExtra deep tread2 ISO 2017 All rights reservedBS ISO 18805:2017This page deliberately left blankBSI is the natio
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