ISO/TS 13471-1:2017
Acoustics -- Temperature influence on tyre/road noise measurement -- Part 1: Correction for temperature when testing with the CPX method
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The noise emission for which this document is applicable is measured by means of ISO 11819‑2, or similar methods such as the on-board sound intensity (OBSI) method specified in Reference [1]. Measurement results obtained at a certain temperature, which may vary over a wide range, are normalized to a designated reference temperature (20 °C) using a correction procedure specified in this document.