BS-AU-50-1.2.4-1994 ISO-10454-1993.pdf
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1、BRITISH STANDARD BS AU 50-1.2.4:1994 ISO 10454: 1993 Tyres and wheels Part 1: Tyres Section 2: Commercial vehicle tyres Subsection 2.4 Method of test for verifying tyre capabilities Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:20 GMT+00:00 2006, Uncontr
2、olled Copy, (c) BSI BS AU 50-1.2.4:1994 This British Standard, having been prepared under the direction of the Automobile Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 January 1994 BSI 12-1999 The following BSI references relate to t
3、he work on this standard: Committee reference AUE/4 Draft for comment 90/81368 DC ISBN 0 580 22717 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Automobile Standards Policy Committee (AUE/-) to Technical Committee AUE/4, upon which t
4、he following bodies were represented: Agricultural Engineers Association Automobile Association British Industrial Truck Association British Pressure Gauge Manufacturers Association British Rubber Manufacturers Association Bus and Coach Council Department of Transport Freight Transport Association I
5、nstitute of Road Transport Engineers (Inc) Motor Cycle Industrys Association of Great Britain Ltd. Motor Industry Research Association National Tyre Distributors Association Retread Manufacturers Association Road Haulage Association Ltd. Society of Motor Manufacturers and Traders Ltd. Amendments iss
6、ued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1.2.4:1994 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2No
7、rmative reference1 3Definitions1 4Test equipment1 5Testing2 6Requirements3 Annex A (informative) Test conditions for tyres with non-standard marking5 Annex B (informative) Bibliography6 Table 1 Plunger diameter2 Table 2 Endurance test parameters3 Table 3 Minimum breaking energy4 Table A.1 Plunger di
8、ameter5 Table A.2 Endurance test5 Table A.3 Minimum breaking energy6 List of referencesInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1.2.4:1994 ii BSI 12-1999 National foreword This
9、 Subsection of this Part of BS AU 50 has been prepared under the direction of the Automobile Standards Policy Committee and is identical with ISO 10454:1993 Truck and bus tyres Verifying tyre capabilities Laboratory test methods, published by the International Organization for Standardization (ISO).
10、 Other Parts of this standard are as follows: Part 2: Wheels and rims; Part 3: Valves; Part 4: Rim profiles and dimensions. Cross-references. The Technical Committee has reviewed the provisions of ISO 4223-1:1989 to which normative reference is made in the text and has decided that they are acceptab
11、le for use in conjunction with this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligati
12、ons. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the
13、inside front cover. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1.2.4:1994 BSI 12-19991 1 Scope This International Standard specifies test methods for verifying the capabilities of truck and bus ty
14、res. Of the test methods presented, only some may be required depending on the type of tyre to be tested. The tests are carried out in a laboratory under controlled conditions. It includes a strength test for assessing the capability of the tyre structure, with respect to braking energy, in the trea
15、d area. A second test, the endurance test, assesses the resistance of the tyre with respect to service at full load and moderate speed over long distances. The test methods presented in this International Standard are not intended for gradation of tyre performance or quality levels. This Internation
16、al Standard applies to all truck and bus tyres. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the edition indicated was valid. All standards are subject to revi
17、sion, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 4223-1:1989, Definitions o
18、f some terms used in the tyre industry Part 1: Pneumatic tyres. 3 Definitions For the purposes of this International Standard, the definitions given in ISO 4223-1 and the following definitions apply. 3.1 bead separation breakdown of bond between components in the bead area 3.2 belt separation partin
19、g of rubber compound between belt layers or between belts and plies 3.3 chunking breaking away of pieces of the thread 3.4 cord separation cord parting from adjacent rubber compounds 3.5 cracking any parting within the tread, sidewall or innerliner of the tyre extending to cord material 3.6 innerlin
20、er separation parting of innerliner from cord material in the carcass 3.7 maximum load rating maximum load that the tyre is rated to carry in single formation at the reference speed 3.8 open splice any parting at any junction of tread, sidewall or innerliner that extends to cord material 3.9 ply sep
21、aration parting of rubber compound between adjacent plies 3.10 sidewall separation parting of the rubber compound from the cord material in the sidewall 3.11 special tread tyre (ET) tyre whose tread pattern is primarily designed to provide satisfactory performance under special service conditions (e
22、.g. mixed use, on-and off-road, city bus, etc.) 3.12 test rim any rim on which the tyre may be fitted that conforms to the dimensions of the recommended rims for the particular tyre designation and type 3.13 test drum speed peripheral speed of the steel test drum 3.14 tread separation pulling away o
23、f the tread from the tyre carcass 4 Test equipment The test equipment consists of items in 4.1 to 4.3. 4.1 Test drum, cylindrical driven flywheel (drum) having a diameter of 1,7 m 1 % or 2 m 1 %. The surface of the drum shall be smooth steel. The width of the test surface shall be equal to or exceed
24、 the overall width of the test tyre. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:07:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 50-1.2.4:1994 2 BSI 12-1999 For the test drum, the loading device may be a dead-weight cantilevered system with a hydra
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