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ONR CEN ISO/TS 7849-2

Issue date: 2023 02 15

Acoustics - Determination of airborne sound power levels emitted by machinery using vibration measurement - Part 2: Engineering method including determination of the adequate radiation factor (ISO/TS 7849-2:2009)

This part of ISO/TS 7849 gives basic requirements for a reproducible method for the determination of the sound power level of the noise emitted by machinery or equipment by using surface vibration measurements, together with the knowledge of the machinery specific sound radiation factor in the frequency bands. The method is only applicable to noise which is emitted by vibrating surfaces of solid structures and not to noise generated aerodynamically. This vibration measurement method is especially applicable in cases where accurate direct airborne noise measurements, e.g. as specified in ISO 3746, ISO 3747, and ISO 9614 (all parts), are not possible because of high background noise or other parasitic environmental interferences; or, if a distinction is required between the total radiated sound power and its structure vibration generated component. The methods described in this part of ISO/TS 7849 apply mainly to processes that are stationary with respect to time. Recommendations on the selection of frequency bands are given in Annex C.

General information on ONR CEN ISO/TS 7849-2

Format
Digital | 38 Pages
Language
German | English | Download GER/ENG
Publisher
Austrian Standards International

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Normative References

Here you will find an extract of the normative references. Please refer to the document itself for the full list.

Dokumentnummer Titel Ausgabedatum Art Link
Dokumentnummer
ISO 5348:2021
Titel
Mechanical vibration and shock — Mechanical mounting of accelerometers
Ausgabedatum
2021 01 29
Art
Standard
Dokumentnummer
ISO/IEC Guide 98-3:2008
Titel
Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) (Corrected version 2010-11)
Ausgabedatum
2008 09 30
Art
Technische Regel

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