Revision 3 - Amendment 1
Supplement 1 to the 03 series of amendments – Date of entry into force: 8 October 2016
Uniform provisions concerning the approval of motor vehicles having at least four wheels with regard to their sound emissions
This document is meant purely as documentation tool. The authentic and legal binding text is: ECE/TRANS/WP.29/2016/4.
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UNITED NATIONS
Annex 3, paragraph 3.1.3., amend to read:
"3.1.3. …
If a sound peak obviously out of character with the general sound pressure level is observed, the measurement shall be discarded. At least four measurements for each test condition shall be made on each side of the vehicle and for each gear ratio. Left and right sides may be measured simultaneously or sequentially. The first four valid consecutive measurement results, within 2 dB(A), allowing for the deletion of non-valid results (see paragraph 2.1.), shall be used for the calculation of the final result for the given side of the vehicle. The results of each side shall be averaged separately and rounded to the first decimal place. All further calculations to derive Lurban shall be done separately for the left and right vehicle side. The final value to be reported as the test result mathematically rounded to the nearest integer shall be the higher value of the two sides.
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* * Former title of the Agreement: Agreement Concerning the Adoption of Uniform Conditions of Approval and Reciprocal Recognition of Approval for Motor Vehicle Equipment and Parts, done at Geneva on 20 March 1958.