ISO/TS 7849-2:2009

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 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 ISO/TS 7849-2:2009 apply mainly to processes that are stationary with respect to time. Recommendations on the selection of frequency bands are given in an annex.

Acoustique — Détermination des niveaux de puissance acoustique aériens émis par les machines par mesurage des vibrations — Partie 2: Méthode d'expertise incluant la détermination d'un facteur de rayonnement approprié

Akustika - Določanje ravni zvočnih moči v zraku, ki jih povzročajo stroji, z merjenjem vibracij - 2. del: Inženirska metoda, ki vključuje določanje ustreznega faktorja sevanja

General Information

• Status: Published
• Publication Date: 08-Mar-2009
• ICS: 17.140.20 - Noise emitted by machines and equipment
• Technical Committee: ISO/TC 43/SC 1 - Noise
• Drafting Committee: ISO/TC 43/SC 1 - Noise
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 28-Sep-2023
• Ref Project: SIST-TS ISO/TS 7849-2:2014 - Acoustics -- Determination of airborne sound power levels emitted by machinery using vibration measurement -- Part 2: Engineering method including determination of the adequate radiation factor

Relations

• Revised: SIST ISO/TR 7849:1997 - Acoustics -- Estimation of airborne noise emitted by machinery using vibration measurement
• Effective Date: 14-Aug-2008
• Revises: ISO/TR 7849:1987 - Acoustics — Estimation of airborne noise emitted by machinery using vibration measurement
• Effective Date: 15-Apr-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TS ISO/TS 7849-2:2014
01-februar-2014
1DGRPHãþD
SIST ISO/TR 7849:1997
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PHUMHQMHPYLEUDFLMGHO,QåHQLUVNDPHWRGDNLYNOMXþXMHGRORþDQMHXVWUH]QHJD
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Acoustics -- Determination of airborne sound power levels emitted by machinery using
vibration measurement -- Part 2: Engineering method including determination of the
adequate radiation factor
Acoustique -- Détermination des niveaux de puissance acoustique aériens émis par les
machines par mesurage des vibrations -- Partie 2: Méthode d'expertise incluant la
détermination d'un facteur de rayonnement approprié
Ta slovenski standard je istoveten z: ISO/TS 7849-2:2009
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
17.160 Vibracije, meritve udarcev in Vibrations, shock and
vibracij vibration measurements
SIST-TS ISO/TS 7849-2:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS ISO/TS 7849-2:2014

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SIST-TS ISO/TS 7849-2:2014

TECHNICAL ISO/TS
SPECIFICATION 7849-2
First edition
2009-03-15

Acoustics — Determination of airborne
sound power levels emitted by machinery
using vibration measurement —
Part 2:
Engineering method including
determination of the adequate radiation
factor
Acoustique — Détermination des niveaux de puissance acoustique
aériens émis par les machines par mesurage des vibrations —
Partie 2: Méthode d'expertise incluant la détermination d'un facteur
de rayonnement approprié




Reference number
ISO/TS 7849-2:2009(E)
©
ISO 2009

---------------------- Page: 3 ----------------------

SIST-TS ISO/TS 7849-2:2014
ISO/TS 7849-2:2009(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
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accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
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the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.


COPYRIGHT PROTECTED DOCUMENT


©  ISO 2009
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2009 – All rights reserved

---------------------- Page: 4 ----------------------

SIST-TS ISO/TS 7849-2:2014
ISO/TS 7849-2:2009(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Principle. 4
5 Measuring instrumentation. 5
5.1 General. 5
5.2 Vibration transducer. 5
5.3 Non-contacting transducers.
...

TECHNICAL ISO/TS
SPECIFICATION 7849-2
First edition
2009-03-15

Acoustics — Determination of airborne
sound power levels emitted by machinery
using vibration measurement —
Part 2:
Engineering method including
determination of the adequate radiation
factor
Acoustique — Détermination des niveaux de puissance acoustique
aériens émis par les machines par mesurage des vibrations —
Partie 2: Méthode d'expertise incluant la détermination d'un facteur
de rayonnement approprié




Reference number
ISO/TS 7849-2:2009(E)
©
ISO 2009

---------------------- Page: 1 ----------------------
ISO/TS 7849-2:2009(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.


COPYRIGHT PROTECTED DOCUMENT


©  ISO 2009
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland

ii © ISO 2009 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/TS 7849-2:2009(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Principle. 4
5 Measuring instrumentation. 5
5.1 General. 5
5.2 Vibration transducer. 5
5.3 Non-contacting transducers. 6
5.4 Amplifier and filter . 6
5.5 Integrator . 6
5.6 Calibration . 6
6 Installation and operation of source under test . 7
6.1 General. 7
6.2 Description of the machine. 7
6.3 Installation . 7
6.4 Operating conditions.
...