NF EN ISO 3743-2

December 2009

Standard Cancelled

Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms (ISO 3743-2:1994)

View the extract New: UPSELL service

Main informations

Collections

National standards and national normative documents

Publication date

December 2009

Number of pages

23 p.

Reference

NF EN ISO 3743-2

ICS Codes

17.140.01 Acoustic measurements and noise abatement in general

17.140.20 Noise emitted by machines and equipment

Print number

1 - novembre 2009

International kinship

ISO 3743-2:1994

European kinship

EN ISO 3743-2:2009

Replaced standards (1)

NF EN ISO 3743-2

January 1996

Standard Cancelled

Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering methods for small, mowable sources in reverberant fields. Part 2 : methods for special reverberation test rooms.

Le présent document prescrit une méthode d''expertise relativement simple pour la détermination des niveaux de puissance acoustique de sources de bruit transportables de petites dimensions. Les mesurages sont effectués quand la source est installée dans une salle conçue spécialement, ayant une durée de réverbération donnée, dans le domaine de fréquences représentatif. Le niveau de puissance acoustique pondéré A de la source en essai est déterminé à partir d''une seule mesure de la pression acoustique pondérée A pour chaque position de microphone, au lieu d''effectuer une somme sur l''ensemble des niveaux par bande d''octave (méthode directe). Une méthode par comparaison est également décrite. Cependant, si une salle d''essai réverbérante spéciale n''est pas disponible, il est recommandé d''utiliser la méthode par comparaison de l''ISO 3743-1 car les spécifications de la salle d''essai exigées dans cette partie 1 sont bien moins contraignantes.

Standard replaced by (1)

NF EN ISO 3743-2

September 2019

Standard Current

Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special reverberation test rooms

ZOOM ON ... the Requirements department

To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:

mandatory clauses to satisfy,
non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document "ISO/IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents" as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

New: UPSELL service

The UPSELL service allows you to easily update one of your standards.
With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.

Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ