1、BSI Standards PublicationBS AU 159g:2013Specification for repairs totyres for motor vehiclesused on the public highwayPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the documentwas last issued. The British Standards Institution 2013Published by
2、 BSI Standards Limited 2013ISBN 978 0 580 75896 6ICS 43.020; 83.160.10The following BSI references relate to the work on this standard:Committee reference AUE/3Draft for comment 13/30249071 DCPublication historyFirst edition, 1973Second edition, November 1973Third edition August, 1981Fourth edition
3、August ,1990Fifth edition December ,1997Sixth (present) edition, November 2013Amendments issued since publicationDate Text affectedBS AU 159g:2013 BRITISH STANDARDContentsForeword iii1 Scope 12 Terms and definitions 13 Tyre performance 144 Tyre inspection before and during repair 145 Repair and tyre
4、s suitable for repair 146 Tyre inspection after repair 147 Marking 158 Repair materials 159 Sealants 1510 Tube and inflation valves 15AnnexesAnnex A (normative) Initial inspection 16Annex B (normative) Minor repairs to radial ply tyres for cars, commercial andagricultural vehicles 18Annex C (normati
5、ve) Limits on or repairs for radial car tyres 19Annex D (normative) Limits on major repairs for radial ply tyres for commercialvehicles 22Annex E (normative) Limits on repairs for radial ply tyres for agriculturalvehicles 24Annex F (normative) Minor repairs to diagonal ply tyres for cars, commercial
6、 andagricultural vehicles 25Annex G (normative) Limits on repairs for diagonal ply car tyres 26Annex H (normative) Limits on major repairs for diagonal ply tyres forcommercial vehicles 28Annex I (normative) Limits on repairs for Diagonal ply tyres for agriculturalvehicles 29Annex J (normative) Limit
7、s on minor repairs for motorcycle and scootertyres 30Annex K (normative) Tyre repair preparation and building 31Annex L (normative) Vulcanization 32Annex M (normative) Repairs to inner tubes and inflation valves 33Annex N (informative) Calculated values of repairable area of area T based onnominal s
8、ection width and percentage 36List of figuresFigure1Typical section of diagonal ply car tyre 5Figure2Typical section of radial ply car tyre 6Figure3Typical section of radial ply self supporting car tyre (SST) 7Figure4Typical section of diagonal ply commercial tyre 8Figure5Typical section of radial p
9、ly commercial vehicle tyre 9Figure6Typical section of diagonal ply agriculture tyre 10Figure7Typical Section of Radial Ply Agricultural Tyre 10Figure B.1 Repairable and non-repairable areas for penetration damagedtyres 19Figure C.1 Repairable and non-repairable areas for radial ply car tyres 21Figur
10、e C.2 Typical sidewall damage for radial ply car tyres 21Figure D.1 Repairable areas for radial commercial vehicle tyres 23Figure D.2 Non-repairable area of radial ply commercial vehicle tyres (A toB) 23Figure D.3 Typical Sidewall damage for radial ply commercial vehicle tyres 24Figure E.1 Repairabl
11、e and non-repairable areas for penetration damagedtyres 24Figure G.1 Repairable and non-repairable areas for diagonal ply car tyres 27Figure I.1 Repairable and non-repairable areas for diagonal ply tyres 29Figure J.1 Repairable and non-repairable areas for motorcycle and scootertyres 31BRITISH STAND
12、ARD BS AU 159g:2013 The British Standards Institution 2013 iFigure M.1 Typical area damage for inner tubes 34Figure M.2 Typical split damage for inner tubes 34List of tablesTable 1 Load-capacity index (LI) 11Table 2 Speed symbols 13Table B.1 Repairable area of T as a percentage of the nominal sectio
13、n width oftyre 18Table B.2 Radial tyre injury limits: size of penetration damage (afterpreparation) 18Table C.1 Repairable areas T and WA)B)20Table C.2 Radial car tyre injury limits (measured at the base of injury afterpreparation) 20Table D.1 Commercial vehicle radial tyre injury limits (measured a
14、t base ofinjury after preparation) 22Table E.1 Repairable areas T and WA)B)24Table E.2 Agricultural vehicle radial tyre limits of repair (measured at base ofinjury after preparation) 25Table F.1 Repairable area of T in terms of percentage of nominal width of tyreA)B)25Table F.2 Diagonal ply tyre inj
15、ury limits: size of penetration damage (afterpreparation) 26Table G.1 Repairable areas T and WA)B)27Table G.2 Diagonal ply car tyre injury limits (measured at base of injury afterpreparation) 27Table H.1 Repairable areas T and WA)B)28Table H.2 Diagonal ply commercial vehicle tyre injury limits (meas
16、ured at baseof injury after preparation) 28Table I.1 Repairable areas T and WA)B)29Table I.2 Agricultural repair limits for diagonal ply tyres 29Table J.1 Motorcycle and scooter tyre injury limits (after preparation) 30Table M.1 Inner tube injury limits (after preparation) 33Table N.1 Calculated val
17、ues for area T 36Summary of pagesThis document comprises a front cover, an inside front cover, pages i to iv,pages 1 to 36, an inside back cover and a back cover.BRITISH STANDARDBS AU 159g:2013ii The British Standards Institution 2013ForewordPublishing informationThis British Standard is published b
18、y BSI Standards Limited, under licence fromThe British Standards Institution, and came into effect on 30 November 2013. Itwas prepared by Technical Committee AUE/3, Renovation of tyres for motorvehicles. A list of organizations represented on this committee can be obtainedon request to its secretary
19、.SupersessionThis British Standard supersedes BS AU 159f:1997, which is withdrawn.Information about this documentRepairs for limited run-flat tyres and temporary use spare tyres are not coveredby this British Standard. Repairs to inner tubes are covered, but repairs forcommercial vehicle steel diago
20、nal ply tyres are not, as this type of tyre isconsidered obsolete.The 1973 edition of this British Standard specified the use of an inner tube torepair very small penetrations in tubeless tyres. This method is not specified inthe 1981, 1990, 1997 editions or the present edition.Good workshop practic
21、e for tyre repair is included in this British Standard, withemphasis on conditions during vulcanizing to ensure that carcasses are cured inthe relaxed shape.Presentational conventionsThe provisions of this standard are presented in roman (i.e. upright) type. Itsrequirements are expressed in sentence
22、s in which the principal auxiliary verb is“shall”.Commentary, explanation and general informative material is presented insmaller italic type, and does not constitute a normative element.Requirements in this standard are drafted in accordance with The BSI guide tostandardization Section 2: Rules for
23、 the structure, drafting and presentation ofBritish Standards, subclause 11.3.1, which states, “Requirements should beexpressed using wording such as: When tested as described in Annex A, theproduct shall .”. This means that only those products that are capable ofpassing the specified test will be d
24、eemed to conform to this standard.Contractual and legal considerationsThis publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legalobligations.BRITISH STAN
25、DARD BS AU 159g:2013 The British Standards Institution 2013 iiiBRITISH STANDARDBS AU 159g:2013This page deliberately left blankiv The British Standards Institution 20131 ScopeThis British Standard specifies requirements for the repair of diagonal ply andradial ply pneumatic tyres for motorcycles, sc
26、ooters, cars, commercial andagricultural vehicles for use on the public highway. It specifies inspectionprocedures, performance criteria, repair materials, and marking requirements,for both tubed and tubeless tyres.The repair of tubes and inflation valves is also covered.This British Standard is not
27、 applicable to:a) tyres designed for use on pre-1933 vehicles, as their design and constructioncan be unique and outside the range of tyres in current use;b) T-type temporary use spare tyres;c) temporary seals, i.e. externally inserted plugs, intended to allow the vehicleto be driven for a limited p
28、eriod, until a permanent repair can be effected;d) use of liquid sealants introduced into tubed or tubeless tyres to aid the airretention property (see Clause 9);e) tyres containing sealant gel; andf) specialist repairs carried out by the original tyre manufacturer.2 Terms and definitionsFor the pur
29、poses of this British Standard, the following definitions apply.NOTE Figure 1 to Figure 7 supplement the definitions given in this clause.2.1 Structure2.1.1 bias-belted tyrepneumatic tyre of the diagonal ply type, with the carcass restricted by a beltcomprising two or more layers of inextensible cor
30、d material laid at alternateangles not greater than those of the carcassNOTE For the purposes of this British Standard, a bias-belted tyre may be treated asa diagonal ply tyre.2.1.2 diagonal ply tyrepneumatic tyre in which the ply cords extend to the bead and lie at alternateangles substantially les
31、s than 90 to the centreline of the treadNOTE Also known as cross ply tyre.NOTE The angle varies between manufacturers and applications.2.1.3 radial ply tyrepneumatic tyre in which the ply cords extend to the bead and lie atapproximately 90 to the centreline of the tread, the carcass stabilized by an
32、essentially inextensible circumferential belt2.1.4 radial ply self supporting run flat tyre (SST)pneumatic tyre in which the ply cords extend to the bead and lie atapproximately 90to the centerline of the tread, the carcass stabilized by anessentially inextensible circumferential beltNOTE Such tyres
33、 have a specially reinforced sidewall to enable them to performwhen deflated. Limited in-service conditions might apply when run deflated, refer tobrand manufacturer.BRITISH STANDARD BS AU 159g:2013 The British Standards Institution 2013 12.1.5 temporary use spare tyretyre intended only for temporar
34、y use, under restricted driving conditions, (e.g.at high speeds or over a long distance) and of different type to those fitted fornormal driving conditions2.1.6 T-type temporary use spare tyretemporary use spare tyre designed for use in one position only at a time, withinflation pressures higher tha
35、n those for standard or reinforced tyres2.2 Service2.2.1 load-capacity indexnumerical code associated with the maximum load a tyre can carry at the speedindicated by its speed symbolNOTE See Table 1 and Table 2.2.2.2 ply rating (PR)index of tyre strength used to identify a tyre with its recommended
36、maximumpermitted load when used for a specific serviceNOTE The ply rating does not necessarily represent the number of plies in a tyre.2.2.3 service descriptioncombination of a tyres load index and speed symbolNOTE See Table 1 and Table 2.2.2.4 speed symbolsymbol indicating the speed at which a tyre
37、 can carry the load corresponding toits load index or indicesNOTE See Table 1 and Table 2.2.3 Main components2.3.1 beadpart of a pneumatic tyre shaped and structured to fit and hold the tyre to therim2.3.2 bead heelpart of the bead that fills the angle formed by the junction of the rim flangeand the
38、 bead seat2.3.3 bead toeinnermost part of the bead opposite the heel2.3.4 beltlayer(s) of material(s) beneath the tread, laid in the direction of the treadcentreline, restricting the carcass in a circumferential direction (radial ply tyresonly)2.3.5 breakerintermediate ply between carcass and tread
39、(diagonal ply tyres only)NOTE See also 2.3.13 protective breaker.2.3.6 carcassstructural part of a tyre, not including the tread and outermost rubber of thesidewalls, which, when inflated, bears the load on the tyre2.3.7 chafermaterial (in the bead area) used to protect the carcass against rim chafi
40、ngBRITISH STANDARDBS AU 159g:20132 The British Standards Institution 20132.3.8 cordtextile or non-textile strands (threads) used in various components of the tyre2.3.9 crownarea between the shoulders of a tyre2.3.10 inner-lininglayer of rubber, from bead toe to bead toe, on the inside of the carcass
41、NOTE In tubeless tyres the inner-lining has air-retaining properties.2.3.11 plylayer of rubber-coated parallel cords2.3.12 protective breakeroptional strip of ply material between the tread and the belt, used to minimizedamage to the belt (commercial vehicle radial ply tyres only)2.3.13 sidewallpart
42、 of a tyre between the tread and the bead2.3.14 sidewall for self supporting tyresspecially designed sidewalls allowing limited tyre performance whilst in adeflated state2.3.15 sidewall rubberrubber layer on the sidewall of the tyre and outside of the carcass, which mayinclude ornamental or protecti
43、ve ribs and fitting lines2.3.16 shoulderarea between the sidewall and tread2.3.17 treadpart of the pneumatic tyre intended to contact the road2.3.18 tubeless tyrepneumatic tyre designed for use without an inner tube2.4 Tyre repair2.4.1 buffingmechanical preparation of a tyre surface(s) prior to appl
44、ication ofnon-vulcanized material2.4.2 combination plug-patchshaped moulded unit combining a patch with a stem protruding from the centreof the bonding face, used for the dual purpose of sealing and filling apenetration in a tyre2.4.3 patchtyre or tube repair unit able to vulcanize to the inside of
45、a tyre or outside of atube, with the object of sealing a penetration, and, if necessary, providingreinforcementNOTE See 2.4.2 to 2.4.62.4.4 reinforced patchpatch containing material, in addition to rubber, often in the form of cords orcables of textile or non-textile material, that impart additional
46、 strength whilemaintaining ability to flex compatibly in normal service when vulcanized onto atyre carcass/inner linerBRITISH STANDARD BS AU 159g:2013 The British Standards Institution 2013 32.4.5 reinforced cross ply patchtype of reinforced patch in which the cords are oriented to align approximate
47、lywith the ply cords in a diagonal ply tyre2.4.6 reinforced radial ply patchtype of reinforced patch in which the cords are oriented to align approximatelywith the ply cords in a radial ply tyre2.4.7 rubber only patchpatch containing no restricting or reinforcing cords, used for tube repairs andmino
48、r penetration repairs in tyres2.4.8 major repairrepair requiring a reinforced patchNOTE Major repairs are fully defined in Annex C, Annex D, Annex F and Annex G.2.4.9 minor repairrepair requiring one of the following:a) rubber only repairb) combination plug patchc) reinforced patch with penetration
49、filler material2.4.10 rubbermacromolecular material with the following properties:a) rapid return to the original shape, at room temperature, after substantialdistortion under weak stress; andb) resistance to permanent deformation by heat and moderate pressure2.4.11 vulcanizationchemical transformation of rubber from the plastic to elastic state, by:a) heat and pressure for a given period; orb) natural process at room temperature minimum 15 C (59 F) over anextended period, with or withou
