INHALT

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