• AS IEC 60942-2004

    Current The latest, up-to-date edition.

    Electroacoustics - Sound calibrators

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English

    Published date:  30-03-2004

    Publisher:  Standards Australia

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

    INTRODUCTION1 Scope2 Normative references3 Terms and definitions4 Reference environmental conditions5 Requirements 5.1 General 5.2 Sound pressure level 5.3 Frequency 5.4 Influence of static pressure, air temperature and humidity 5.5 Total distortion 5.6 Power supply requirements 5.7 Specification and calibration of microphones 5.8 Electromagnetic compatibility6 Instrument marking and documentation 6.1 Marking of the sound calibrator 6.2 Individual calibration chart for a class LS sound calibrator 6.3 Instruction manualAnnex A (normative) - Pattern evaluation tests A.0 Introduction A.1 Submission for test A.2 Principal values A.3 Marking of the sound calibrator and supplied documentation A.4 Performance tests at and around reference environmental conditions A.5 Environmental tests A.6 Electromagnetic compatibilityAnnex B (normative) - Periodic tests B.0 Introduction B.1 Submission for test B.2 Preliminary inspection B.3 Performance tests B.4 Calibration of the sound calibrator with other models of microphone B.5 DocumentationAnnex C (normative) - Format for the pattern evaluation report C.0 Introduction C.1 Marking C.2 Submission for test C.3 Pattern evaluation reportBibliography

    Abstract - (Show below) - (Hide below)

    Specifies the performance requirements for these classes of sound calibrator, laboratory standard (Class LS), Class 1 and Class 2. Identical and reproduced from IEC 60942:2003.

    Scope - (Show below) - (Hide below)

    This International Standard specifies the performance requirements for three classes of sound calibrator: laboratory standard (class LS), class 1 and class 2. Tolerance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use.A class 1 sound calibrator is primarily intended for use with a class 1 sound level meter and aclass 2 sound calibrator primarily with a class 2 sound level meter, as specified in IEC 61672-1.The tolerance limits for class LS sound calibrators are based on the use of a laboratorystandard microphone, as specified in IEC 61094-1, for demonstrations of conformance to therequirements of this standard. The tolerance limits for class 1 and class 2 sound calibrators are based on the use of a working standard microphone, as specified in IEC 61094-4, fordemonstrations of conformance to the requirements of this standard.A multi-level and multi-frequency sound calibrator has the same class designation for all sound pressure level and frequency combinations for which the instruction manual states that theinstrument conforms to the requirements of this standard.This standard does not include requirements for equivalent free-field or random-incidencesound pressure levels, such as may be used in the overall sensitivity adjustment of a soundlevel meter.A sound calibrator may provide other functions, for example, tonebursts. Requirements forthese other functions are not included in this standard.

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

    Committee AV-002
    Document Type Standard
    Publisher Standards Australia
    Status Current
    Supersedes

    History - (Show below) - (Hide below)

    First published as AS IEC 60942-2004.

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

    AS/NZS 1269.1:2005 Occupational noise management Measurement and assessment of noise immission and exposure (Reconfirmed 2016)
    AS ISO 140.4-2006 Acoustics - Measurement of sound insulation in buildings and of building elements Field measurements of airborne sound insulation between rooms (ISO 140-4:1998, MOD)
    AS ISO 140.6-2006 Acoustics - Measurement of sound insulation in buildings and of building elements - Laboratory measurements of impact sound insulation of floors
    AS ISO 140.8-2006 Acoustics - Measurement of sound insulation in buildings and of building elements Laboratory measurements of the reduction of transmitted impact noise by floor coverings on a heavyweight standard floor
    AS/NZS 1269.4:2005 Occupational noise management Auditory assessment
    AS 4959-2010 Acoustics - Measurement, prediction and assessment of noise from wind turbine generators
    AS/NZS 1269.4:2014 Occupational noise management Auditory assessment
    AS/NZS 2107:2016 Acoustics - Recommended design sound levels and reverberation times for building interiors
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