1、All-terrain (AT) tyres and rims Symbol marked pneumatic tyres on 5 tapered rims Designation, dimension, marking and load ratingsBS ISO 29802:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017All-terrain (AT) tyres and rims Symbol marked pneumatic tyres on
2、5 tapered rims Designation, dimension, marking and load ratingsPneumatiques et jantes tout terrains Pneumatiques marqus par un symbole pour jantes 5 Dsignation, ctes, marquage et capacits de chargeINTERNATIONAL STANDARDISO29802Second edition2017-06Reference numberISO 29802:2017(E)National forewordTh
3、is British Standard is the UK implementation of ISO 29802:2017. It supersedes BS ISO 29802:2009, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee AUE/4, Tyres and wheels for motor vehicles.A list of organizations represented on this committee can be obt
4、ained 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 application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 90495 0ICS 83.160.10; 43.040.50Co
5、mpliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2017.Amendments/corrigenda issued since publicationDate Text affected BRITISH STANDARDBS ISO 29802:2017 IS
6、O 2017All-terrain (AT) tyres and rims Symbol marked pneumatic tyres on 5 tapered rims Designation, dimension, marking and load ratingsPneumatiques et jantes tout terrains Pneumatiques marqus par un symbole pour jantes 5 Dsignation, ctes, marquage et capacits de chargeINTERNATIONAL STANDARDISO29802Se
7、cond edition2017-06Reference numberISO 29802:2017(E)BS ISO 29802:2017ISO 29802:2017(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 or utilized otherwise in
8、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 copyright officeCh. de Bla
9、ndonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 29802:2017ISO 29802:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no
10、part of this publication may be reproduced 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
11、 body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 29802:2017(E)Foreword v1 Scope . 12 Normative references 13 Terms and definitions . 14 Tyre size designation
12、s 24.1 Dimensional and constructional characteristics . 24.1.1 General 24.1.2 Prefix 24.1.3 Nominal overall diameter code . 24.1.4 Nominal section width code 24.1.5 Tyre construction code . 34.1.6 Nominal rim diameter code . 34.2 Service condition . 34.2.1 General 34.2.2 Symbol of reference inflatio
13、n pressure 44.2.3 Service description 44.3 Other service characteristics 45 Marking 46 Tyre dimensions . 56.1 General . 56.2 Calculation of design tyre dimensions 56.2.1 Theoretical rim width, Rth56.2.2 Measuring rim width, Rm56.2.3 Design tyre section width, S .56.2.4 Design tyre overall diameter,
14、Do66.2.5 Design tyre section height, H .66.3 Calculation of “maximum overall tyre dimensions” . 66.3.1 General 66.3.2 Maximum tyre overall width, Wmax66.3.3 Maximum tyre overall diameter, Do,max . 66.4 Calculation of “maximum overall grown tyre dimensions” 66.4.1 General 66.4.2 Maximum grown tyre ov
15、erall width in service, WG76.4.3 Maximum dynamic tyre overall diameter in service, Do,dyn76.5 Calculation of “minimum tyre dimensions” . 76.5.1 General 76.5.2 Minimum tyre section width, Smin.76.5.3 Minimum tyre overall diameter, Do,min.76.6 Range of approved rims widths 77 Method of measurement of
16、tyre dimensions 88 Reference load carrying capacity 89 Load ratings . 910 Inflation pressures . 911 Rims . 911.1 Designation and marking . 911.2 Rim contours 1011.3 Rim diameter and hump circumference 1112 Valve hole 1112.1 General 1112.2 Snap-in valves . 11 ISO 2017 All rights reserved iiiContents
17、PageBS ISO 29802:2017ISO 29802:2017(E)Annex A (normative) Load indices for all-terrain (AT) tyres .13iv ISO 2017 All rights reservedBS ISO 29802:2017ISO 29802:2017(E)Annex A (normative) Load indices for all-terrain (AT) tyres .13iv ISO 2017 All rights reserved ISO 29802:2017(E)ForewordISO (the Inter
18、national 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
19、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 st
20、andardization.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 accor
21、dance 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 patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Deta
22、ils 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 used in this document is information given for the convenience of users and does not constitute an
23、 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 World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the foll
24、owing URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 31, Tyres, rims and valves, SC 10, Cycle, moped, motorcycle tyres and rims.This second edition cancels and replaces the first edition (ISO 29802:2009), which has been technically revised. ISO 2017
25、All rights reserved vBS ISO 29802:2017BS ISO 29802:2017All-terrain (AT) tyres and rims Symbol marked pneumatic tyres on 5 tapered rims Designation, dimension, marking and load ratings1 ScopeThis document specifies the designations, dimensions, markings and load ratings of pneumatic tyres primarily i
26、ntended for all-terrain vehicles (ATV). It also specifies the designation, marking and contours of rims.The tyres meet the following parameters:a) speeds not exceeding 130 km/h (Speed Symbol M);b) fitted to (AT) 5 tapered drop centre rims;c) nominal rim diameter codes of 7 to 14 inclusive.2 Normativ
27、e referencesThe following documents are referred to in the text in such a way that some or all of 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 amendm
28、ents) applies.ISO 3877-1, Tyres, valves and tubes List of equivalent terms Part 1: TyresISO 4223-1:2002, Definitions of some terms used in the tyre industry Part 1: Pneumatic tyresISO 80000-1, Quantities and units Part 1: General3 Terms and definitionsFor the purposes of this document, the terms and
29、 definitions given in ISO 4223-1 and ISO 3877-1 and the following apply.For the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .ele
30、ctropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp3.1NHSNOT FOR HIGHWAY SERVICEmarking that identifies tyres for off-road applicationsNote 1 to entry: The following terms may be used: “NOT FOR HIGHWAY SERVICE” or “NHS” or “NOT FOR HIGHWAY USE”.INTERNATIONAL STAN
31、DARD ISO 29802:2017(E) ISO 2017 All rights reserved 1BS ISO 29802:2017ISO 29802:2017(E)4 Tyre size designations4.1 Dimensional and constructional characteristics4.1.1 GeneralThe characteristics shall be indicated as follows:PrefixNominal overall diameter codeNominal section width codeTyre constructi
32、on codeNominal rim diameter codeEXAMPLE: AT 23 x 10 R 10NOTE Tyre construction code: “R” = Radial, “” = Diagonal.4.1.2 PrefixAT (all-terrain) identifies tyres and rims designated for service on all-terrain vehicles (ATV).4.1.3 Nominal overall diameter codeThe code shall be as given in Table 1.Table
33、1 Nominal overall diameter codeNominal overall diameter codeDesign tyre overall diameter, Domm16 40617 43218 45719 48320 50821 53322 55923 58424 61025 63526 66027 68628 71129 73730 7624.1.4 Nominal section width codeThe code shall be as given in Table 2.2 ISO 2017 All rights reservedBS ISO 29802:201
34、7ISO 29802:2017(E)4 Tyre size designations4.1 Dimensional and constructional characteristics4.1.1 GeneralThe characteristics shall be indicated as follows:PrefixNominal overall diameter codeNominal section width codeTyre construction codeNominal rim diameter codeEXAMPLE: AT 23 x 10 R 10NOTE Tyre con
35、struction code: “R” = Radial, “” = Diagonal.4.1.2 PrefixAT (all-terrain) identifies tyres and rims designated for service on all-terrain vehicles (ATV).4.1.3 Nominal overall diameter codeThe code shall be as given in Table 1.Table 1 Nominal overall diameter codeNominal overall diameter codeDesign ty
36、re overall diameter, Domm16 40617 43218 45719 48320 50821 53322 55923 58424 61025 63526 66027 68628 71129 73730 7624.1.4 Nominal section width codeThe code shall be as given in Table 2.2 ISO 2017 All rights reserved ISO 29802:2017(E)Table 2 Nominal section width codeNominal section width codeNominal
37、 section width, Snmm6 1527 1788 2039 22910 25411 27912 30513 3304.1.5 Tyre construction codeThe tyre construction code shall be as follows: D or “ (a dash) for diagonal ply construction R for radial ply construction4.1.6 Nominal rim diameter codeThe code shall be as given in Table 3.Table 3 Nominal
38、rim diameter codeNominal rim diameter codeNominal rim diameter, Drmm7 1788 2039 22910 25411 27912 30513 33014 3564.2 Service condition4.2.1 General4.2.1.1 The tyre shall be marked with a symbol (see 4.2.2) and a service description.4.2.1.2 Tyres restricted to off-road service also be marked with one
39、 of the following inscriptions: “NOT FOR HIGHWAY SERVICE” or “NHS” or “NOT FOR HIGHWAY USE”. ISO 2017 All rights reserved 3BS ISO 29802:2017ISO 29802:2017(E)4.2.2 Symbol of reference inflation pressureSymbols shall be used to identify the reference inflation pressure given in Table 4.Table 4 Referen
40、ce inflation pressuresSymbol Inflation pressurekPa2535 454.2.3 Service description4.2.3.1 GeneralThe service description shall be indicated as follows:Load index Speed symbol (example 35 F)4.2.3.2 Load indexThe load index is a numerical code associated with the maximum load a tyre can carry at the s
41、peed indicated by its speed symbol under service description specified by the tyre manufacturer.The correlation between load indices and tyre load carrying capacities shall be as given in ISO 4223-1:2002, Annex A.4.2.3.3 Speed symbolThe speed symbol shall be as given in Table 5. The speed symbol or
42、speed category indicates the reference speed defined as the speed at which the tyre can carry the load corresponding to its load index under the specified service description.Table 5 Correlation between speed symbol and speed categorySpeed symbol Speed categorykm/hFa80aaThe reference speed for tyre
43、load identification of all-terrain tyres shall be 80 km/h, i.e. speed symbol F.4.3 Other service characteristics4.3.1 The word “TUBELESS” shall be used to characterize tyres that can be used without a tube.4.3.2 Specific indications, if required, may be added to show, for example, the preferred dire
44、ction of rotation, indicated by an arrow.5 MarkingThe marking shall consist of:a) the designation of the dimensional and constructional characteristics;4 ISO 2017 All rights reservedBS ISO 29802:2017ISO 29802:2017(E)4.2.2 Symbol of reference inflation pressureSymbols shall be used to identify the re
45、ference inflation pressure given in Table 4.Table 4 Reference inflation pressuresSymbol Inflation pressurekPa2535 454.2.3 Service description4.2.3.1 GeneralThe service description shall be indicated as follows:Load index Speed symbol (example 35 F)4.2.3.2 Load indexThe load index is a numerical code
46、 associated with the maximum load a tyre can carry at the speed indicated by its speed symbol under service description specified by the tyre manufacturer.The correlation between load indices and tyre load carrying capacities shall be as given in ISO 4223-1:2002, Annex A.4.2.3.3 Speed symbolThe spee
47、d symbol shall be as given in Table 5. The speed symbol or speed category indicates the reference speed defined as the speed at which the tyre can carry the load corresponding to its load index under the specified service description.Table 5 Correlation between speed symbol and speed categorySpeed s
48、ymbol Speed categorykm/hFa80aaThe reference speed for tyre load identification of all-terrain tyres shall be 80 km/h, i.e. speed symbol F.4.3 Other service characteristics4.3.1 The word “TUBELESS” shall be used to characterize tyres that can be used without a tube.4.3.2 Specific indications, if requ
49、ired, may be added to show, for example, the preferred direction of rotation, indicated by an arrow.5 MarkingThe marking shall consist of:a) the designation of the dimensional and constructional characteristics;4 ISO 2017 All rights reserved ISO 29802:2017(E)b) service description;c) other service characteristics.The location of the marking of the service description (load index and speed symbol) and the symbol identifying the reference inflati
