ISO/TS 13471-1:2017 specifies procedures for determining the effect of temperature on tyre/road noise emission. Temperatures considered are tyre, road and ambient air temperatures. 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 . 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.
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ISO/TS 13471-1:2017 IDT