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API MPMS CH 22.6: Testing Protocols for Gas Chromatographs : Reaffirmed

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API STD 624: Errata 2

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ISO 10844:2021

ISO 10844:2021 Acoustics – Specification of test tracks for measuring sound emitted by road vehicles and their tyres

CDN $233.00

Description

This document specifies the essential characteristics of a test track surface intended to be used for measuring rolling sound emission of vehicles and their tyres.

The surface design given in this document

-    produces consistent levels of tyre or road sound emission under a wide range of operating conditions including those appropriate to vehicle sound testing,

-    minimizes inter-site variation,

-    limits absorption of the vehicle sound sources, and

-    is consistent with road-building practice.

Edition

4

Published Date

2021-12-06

Status

PUBLISHED

Pages

24

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

This document specifies the essential characteristics of a test track surface intended to be used for measuring rolling sound emission of vehicles and their tyres.

The surface design given in this document

-    produces consistent levels of tyre or road sound emission under a wide range of operating conditions including those appropriate to vehicle sound testing,

-    minimizes inter-site variation,

-    limits absorption of the vehicle sound sources, and

-    is consistent with road-building practice.

Previous Editions

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