Regulation No 117 of the Economic Commission for Europe of the United Nations... (42008X0829(01))
Regulation No 117 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and to adhesion on wet surfaces
- Regulation No 117 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and to adhesion on wet surfaces
- 1. SCOPE
- 2. DEFINITIONS
- 3. APPLICATION FOR APPROVAL
- 4. MARKINGS
- 5. APPROVAL
- 6. SPECIFICATIONS
- 7. MODIFICATIONS OF THE TYPE OF PNEUMATIC TYRE AND EXTENSION OF APPROVAL
- 8. CONFORMITY OF PRODUCTION
- 9. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
- 10. PRODUCTION DEFINITELY DISCONTINUED
- 11. NAMES AND ADDRESSES OF TECHNICAL SERVICES CONDUCTING APPROVAL TESTS AND OF ADMINISTRATIVE DEPARTMENTS
- 12. INTRODUCTORY PROVISIONS
- ANNEX 1
- COMMUNICATION
- (Maximum format: A4 (210 × 297 mm))
- ANNEX 2
- ARRANGEMENT OF APPROVAL MARKS
- (See paragraph 5.4 to this Regulation)
- Approval marks in accordance with Regulation No 117
- EXAMPLE 1
- EXAMPLE 2
- Appendix 1
- Approval according to Regulation No 117 coincident with approval to Regulations Nos 30 or 54(1)
- EXAMPLE 1
- EXAMPLE 2
- EXAMPLE 3
- Appendix 2
- Extensions to combine approvals issued in accordance with Regulations Nos 117, 30 or 54(1)
- EXAMPLE 1
- EXAMPLE 2
- ANNEX 3
- COAST-BY TEST METHOD FOR MEASURING TYRE-ROLLING SOUND EMISSION
- 0. INTRODUCTION
- 1. MEASURING INSTRUMENTS
- 1.1. Acoustic measurements
- 1.1.1. Calibration
- 1.1.2. Compliance with requirements
- 1.1.3. Positioning of the microphone
- 1.2. Speed measurements
- 1.3. Temperature measurements
- 1.3.1. Air temperature
- 1.3.2. Test surface temperature
- 1.4. Wind measurement
- 2. CONDITIONS OF MEASUREMENT
- 2.1. Test site
- 2.2. Meteorological conditions
- 2.3. Ambient noise
- 2.4. Test vehicle requirements
- 2.4.1. General
- 2.4.2. Vehicle load
- 2.4.3. Wheelbase
- 2.4.4. Measures to minimize vehicle influence on sound level measurements
- 2.5. Tyres
- 2.5.1. General
- 2.5.2. Tyre loads
- 2.5.3. Tyre inflation pressure
- 2.5.4. Preparations prior to testing
- 3. METHOD OF TESTING
- 3.1. General conditions
- 3.2. Nature and number of measurements
- 3.3. Test speed range
- 4. INTERPRETATION OF RESULTS
- 4.1. Determination of test result
- 4.2. Regression analysis of rolling sound measurements
- 4.3. Temperature correction
- Figure 1
- Microphone positions for the measurement
- Appendix
- Test Report
- PART 1 — REPORT
- PART 2 — TEST DATA
- ANNEX 4
- SPECIFICATIONS FOR THE TEST SITE
- 1. INTRODUCTION
- 2. REQUIRED CHARACTERISTICS OF THE SURFACE
- 2.1. Residual voids content
- 2.2. Sound absorption coefficient
- 2.3. Texture depth
- 2.4. Homogeneity of the surface
- 2.5. Period of testing
- 3. TEST SURFACE DESIGN
- 3.1. Area
- Figure 1
- Minimum requirements for test surface area. The shaded part is called ‘Test Area’
- 3.2. Design and preparation of the surface
- 3.2.1. Basic design requirements
- 3.2.2. Design guidelines
- Figure 2
- Grading curve of the aggregate in the asphaltic mix with tolerances
- 4. TEST METHOD
- 4.1. Measurement of the residual voids content
- 4.2. Sound absorption coefficient
- 4.3. Volumetric macrotexture measurement
- 5. STABILITY IN TIME AND MAINTENANCE
- 5.1. Age influence
- 5.2. Maintenance of the surface
- 5.3. Repaving the test area
- 6. DOCUMENTATION OF THE TEST SURFACE AND OF TESTS PERFORMED ON IT
- 6.1. Documentation of the test surface
- 6.2. Documentation of vehicle noise tests conducted on the surface
- ANNEX 5
- TEST PROCEDURE FOR MEASURING WET GRIP
- 1. GENERAL TEST CONDITIONS
- 1.1. Track characteristics
- 1.2. Wetting conditions
- 2. TEST PROCEDURE
- 2.1. Trailer or special purpose tyre evaluation vehicle procedure
- 2.1.2. Test procedure
- 2.2. Standard vehicle procedure
- 2.2.2. Test procedure
- Appendix
- Test report
- (Adhesion on wet surface)
- PART 1 — REPORT
- PART 2 — TEST DATA
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