Skip to content
Please enter a keyword to search

  • EN 29295 : 1991

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    View superseded by

    ACOUSTICS - MEASUREMENT OF HIGH-FREQUENCY NOISE EMITTED BY COMPUTER AND BUSINESS EQUIPMENT

    Available format(s): 

    Superseded date:  01-05-2015

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Comite Europeen de Normalisation

    Pure ENs are not available for sale, please purchase a suitable national adoption

    Sorry this product is not available in your region.

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    Foreword
    0 Introduction
    1 Scope and field of application
    2 References
    3 Requirements for measurements in a reverberation room
    4 Method using measured reverberation time
    5 Method using calculated air absorption
    6 Method using a reference sound source
    7 Method using a free field over a reflecting plane
    8 Calculation of A-weighted sound power level
    9 Information to be recorded
    10 Information to be reported
    Annex A Coaxial circular paths in parallel planes for microphone
             traverses in a free field over a reflecting plane
    Annex B Calculation of air absorption coefficient

    Abstract - (Show below) - (Hide below)

    Defines four methods for the determination of the sound power levels of high-frequency noise emitted by computer and business equipment in the frequency range covered by the octave band centred at 16 kHz.

    General Product Information - (Show below) - (Hide below)

    Committee TC 211
    Development Note Also numbered as BS 7135-2(1989). (09/2005)
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    ISO/IEC 11159:1996 Information technology — Office equipment — Minimum information to be included in specification sheets — Copying machines
    I.S. EN ISO/IEC 11159:1998 INFORMATION TECHNOLOGY - OFFICE EQUIPMENT - MINIMUM INFORMATION TO BE INCLUDED IN SPECIFICATION SHEETS - COPYING MACHINES
    EN ISO/IEC 11159 : 1998 INFORMATION TECHNOLOGY - OFFICE EQUIPMENT - MINIMUM INFORMATION TO BE INCLUDED IN SPECIFICATION SHEETS - COPYING MACHINES

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 6926:2016 Acoustics Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
    ISO 7779:2010 Acoustics Measurement of airborne noise emitted by information technology and telecommunications equipment
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective