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1、AppendixThe finished tyre performance standard1. the standard for balancing and uniformity1.1 the test method:The tyre dynamic balancing test method: QBT 10001-2012The tyre uniformity test method: QBT 10002-20121.2 the testing clssifications:sizeThe test pressure for dynamic balancer (kPa) The class
2、 for dynamic balancing(A/B)(g) The test pressure for uniformity(kPa)The class for uniformity（A/B） Radial force variation (N)Radial harmonic force (N)Lateral force variation (N)(N)conicity(N)The passenger car with the cross section width at 235 or under20030/60200110808070The passenger car with cross
3、 section width at 245 or above20040/702001309510090The light truck tyre with 8PR or under20060/90300150110120100The light truck tyre with 10PR or above20070/1104501801301401202The finished tyre should meet the following standard:The tyre size designation,dimensions, standard rims and load capacity s
4、hould meet the specificatios as per the CAS( China Association for standardization), ETRTO(European tyre &rim technical organisation) and TRA( tyre and rim association inc.).2.1 the passenger car radial tyre:2.1.1 Product standard: GB9743-2007 Passenger car tyres GBT 2978-2008Size designation,dimens
5、ions,inflation pressure and load capacity for passenger car tyres ETRTO TRA2.1.2 Tyre endurance and low inflation pressure performance: GBT 4502-2009 FMVSS NO.139 Tyre endurance34h low inflation pressure performance1.5h2.1.3 High speed performance : GBT 4502-2009 FMVSS NO.139 ECE R30Test phasetest s
6、peed(km/h) The test time(min) The test speed(km/h) The test time(min)The passenger car tyre for the speed symbol LWThe passenger car for the speed symbol Y1From zero to initial test speeda100260102Initial test speed10260203Initial speed +1010270104Initial test speed +2010280105Initial test speed +30
7、10290106Initial test speed +4010aInitial test speed= the speed symbol specified speed -40km/h( with the drum 1.7m)2.1.4：Bead unseating resistance: GB/T 4502-2009 The tyre nominal cross section width /mmMinimum force to unseat/NSW1606670160SW2058890205SW111202.1.5 Tyre dimensions: GB/T 521-20032.1.6
8、Tyre strength: GB/T 4502-2009The nominal cross section width/mmThe passenger car min static break energy/JstandardExtra load1602204391602955852.2 Light truck radial tyre2.2.1 product standard:GB 9744-2007Truck tyres GBT 2977-2008 Size designation,dimensions,inflation pressure and load capacity for t
9、ruck tyres ETRTO TRA2.2.2 The tyre endurance performance: GBT 4501-2008 FMVSS NO.139 ECE R54 the endurance performanceLoad interiaTyre speed ratings The test drum speed(km/h)the percentage for the max.load7 h.16 h.24 h.122 or moreFGJKLM3545505665726685101121or lessFGJK35405056L657090106MNPQ or over8
10、09010012075*97*115Remarks: * means the time for the first phase and sencond phase should be 4h and 6h seperately.The low pressure performance1.5h 2.2.3 The tyre high speed performance: GBT 4501-2008 FMVSS NO.139 Test phaseThe test speed(km/h)Test time(min)1From zero to initial test speeda102Initial
11、test speed103Initial test speed +10104Initial test speed +2030aInitial test speed= the speed symbol specified speed -20km/h( with the drum 1.7m)2.2.4 Tyre dimensions: GBT 521-20032.2.5 strength: GBT 4501-2008 FMVSS NO.139The minimum broken energy for the metric truck tyre One tyre load interiaThe co
12、rresponding air vs the max.load kPaThe minimnum broken energy/JThe rim nominal diameter13The rim nominal diameter13121250136294251-350203362351-450271514451-550576551-650644650712122550972551-6501412651-7501695The minimum broken energy for the Engilish truck tyre ratingsMinilight heavy-duty tyreThe
13、rim nominal diameter12The rim nominal diameter13-14The rim nominal diameter154136192294620327136282713845141033951457612644147122.3 The test standrad for other items:2.3.1 The tyre enviornmental materials test standar: as per the related specificatios on the REACH2.3.2 noise level test: ECE R117 The
14、 project product noise level should meet the specified value in the following table.C1 tyretyre nominal cross sectionlimit value dB（A）185 and lower70Over 185 up to 24571Over 245 up to 27572Over 27574The above limits shall be increased 1 dB(A) for snow tyres, extra load tyres or reinforced tyres,or any combination of these classifications.C2 tyreCategor
