BS ISO 23671:2015
$142.49
Passenger car tyres. Method for measuring relative wet grip performance. Loaded new tyres
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 28 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Methods for measuring wet grip 5 General test conditions 5.1 Track characteristics |
| 9 | 5.2 Wetting conditions |
| 10 | 5.3 Atmospheric conditions 5.4 Reference tyre 6 Measurement of tyre wet grip on a standard vehicle 6.1 Principle 6.2 Equipment 6.2.1 Vehicle 6.2.2 Measuring equipment |
| 11 | 6.3 Conditioning of the test track 6.4 Test speed measurement requirements 6.5 Tyres and rims 6.5.1 Tyre preparation and break-in 6.5.2 Tyre load 6.5.3 Tyre inflation pressure 6.6 Procedure |
| 12 | 6.7 Processing of measurement results 6.7.1 Calculation of the average deceleration, AD 6.7.2 Validation of results |
| 13 | 6.7.3 Calculation of average, AD 6.7.4 Calculation of braking force coefficient, BFC 6.7.5 Calculation of the relative wet grip performance index of the tyre |
| 14 | 6.8 Wet grip performance comparison between a candidate tyre and a reference tyre using a control tyre 6.8.1 General 6.8.2 Principle of the approach |
| 15 | 6.8.3 Selection of a control tyre set 6.8.4 Storage and preservation 6.8.5 Replacement of control tyres 7 Test method using a trailer or a tyre test vehicle 7.1 Principle 7.2 Test apparatus |
| 17 | 7.3 Selection and preparation of test tyres 7.4 Preparation of apparatus and test track 7.4.1 Towed trailer |
| 18 | 7.4.2 Tyre test vehicle 7.4.3 Instrumentation and equipment 7.4.4 Conditioning of the track 7.5 General test conditions 7.6 Procedure |
| 19 | 7.7 Processing of measurement results |
| 21 | Annex A (informative) Example test report of wet grip index |
| 24 | Bibliography |
