We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
  • AS IEC 61672.1-2004

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    Add to Watchlist
    This Standard has been added successfully to your Watchlist
    Please visit My Watchlist to see all standards that you are watching.
    Please log in or to add this standard to your Watchlist.
    We could not add this standard to your Watchlist.
    Please retry or contact support for assistance.
    We could not add this standard to your Watchlist.
    Please retry or contact support for assistance.
    You have already added this standard to your Watchlist.
    Visit My Watchlist to view the full list.

    Electroacoustics - Sound level meters Specifications

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

    Superseded date:  25-02-2019

    Language(s):  English

    Published date:  01-01-2004

    Publisher:  Standards Australia

    Add to Watchlist

    Add To Cart

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

    1 Scope2 Normative references3 Terms and definitions4 Reference environmental conditions5 Performance specifications 5.1 General 5.2 Adjustments to indicated levels 5.3 Directional response 5.4 Frequency weightings 5.5 Level linearity 5.6 Self-generated noise 5.7 Time weightings F and S 5.8 Toneburst response 5.9 Response to repeated tonebursts 5.10 Overload indication 5.11 Under-range indication 5.12 Peak C sound level 5.13 Reset 5.14 Thresholds 5.15 Display 5.16 Analogue or digital output 5.17 Timing facilities 5.18 Radio frequency emissions and disturbances to a public power supply 5.19 Crosstalk 5.20 Power supply6 Environmental, electrostatic, and radio frequency criteria 6.1 General 6.2 Static pressure 6.3 Air temperature 6.4 Humidity 6.5 Electrostatic discharge 6.6 AC power frequency and radio frequency fields7 Provision for use with auxiliary devices8 Marking9 Instruction manualAnnex A (normative) - Maximum expanded uncertainties of measurementAnnex B (informative) - AU weightingAnnex C (informative) - Specifications for time-weighting I (impulse)Bibliography

    Abstract - (Show below) - (Hide below)

    Provides electroacoustical performance specifications of sound level meters. Identical with and reproduced from IEC 61672-1:2002.

    Scope - (Show below) - (Hide below)

    1.1 This standard gives electroacoustical performance specifications for three kinds ofsound measuring instruments: a conventional sound level meter that measures exponential time-weighted sound level; an integrating-averaging sound level meter that measures time-average sound level; and an integrating sound level meter that measures sound exposure level.A single instrument may make any, or all, of the three kinds of measurements. Additionalperformance specifications are given for the measurement of maximum time-weighted soundlevel and peak C sound level. Frequency-weighting A is mandatory for all sound level metersspecified in this standard.1.2 Sound level meters conforming to the requirements of this standard have a specifiedfrequency response for sound incident on the microphone from one principal direction in anacoustic free field or from random directions.1.3 Sound level meters specified in this standard are intended to measure sounds generallyin the range of human hearing.NOTE For measurement of audible sound in the presence of ultrasound, the AU weighting, specified in IEC 61012[1], may be applied.1.4 Two performance categories, class 1 and class 2, are specified in this standard. In general, specifications for class 1 and class 2 sound level meters have the same design goals and differ mainly in the tolerance limits and the range of operational temperatures. Tolerancelimits for class 2 specifications are greater than, or equal to, those for class 1 specifications.1.5 This standard is applicable to a range of designs for sound level meters. A sound levelmeter may be a self-contained hand-held instrument with an attached microphone and a built-in display device. A sound level meter may be comprised of separate components in one ormore enclosures and may be capable of displaying a variety of acoustical signal levels. Soundlevel meters may include extensive analogue or digital signal processing, separately or incombination, with multiple analogue and digital outputs. Sound level meters may include general- purpose computers, recorders, printers, and other devices that form a necessary part of the complete instrument.1.6 Sound level meters may be designed for use with an operator present or for automaticand continuous measurements of sound level without an operator present. Specifications inthis standard for the response to sound waves apply without an operator present in the soundfield.

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

    Committee AV-002
    Document Type Standard
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Supersedes
    Under Revision

    History - (Show below) - (Hide below)

    First published as AS Z37-1967 and AS Z38-1967.
    AS Z37-1967 revised and redesignated as AS 1259.1-1976.
    AS Z38-1967 revised and redesignated as AS 1259.2-1976.
    AS 1259.3 first published in 1976.
    AS 1259.1-1976, AS 1259.2-1976 and AS 1259.3-1976 revised, amalgamated and redesignated as AS 1259-1982.
    AS 1259-1982 revised and redesignated as AS 1259.1-1990 and AS 1259.2-1990.
    AS 1259.1-1990 and AS 1259.2-1990 revised, amalgamated and redesignated in part as AS IEC 61672.1-2004. First published as AS Z37-1967 and AS Z38-1967. AS Z37-1967 revised and redesignated as AS 1259.1-1976. AS Z38-1967 revised and redesignated as AS 1259.2-1976. AS 1259.3 first published in 1976. AS 1259.1-1976, AS 1259.2-1976 and AS 1259.3-1976 revised, amalgamated and redesignated as AS 1259-1982. AS 1259-1982 revised and redesignated as AS 1259.1-1990 and AS 1259.2-1990. AS 1259.1-1990 and AS 1259.2-1990 revised, amalgamated and redesignated in part as AS IEC 61672.1-2004.

    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/NZS 1716:2012 Respiratory protective devices
    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 60118.4-2007 Hearing aids Magnetic field strength in audiofrequency induction loops for hearing aid purposes
    AS/NZS 8124.1:2016 Safety of toys Safety aspects related to mechanical and physical properties (ISO 8124-1:2014, MOD)
    AS 2353:2018 Pedestrian push-button assemblies
    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 IEC 62040.3-2012 Uninterruptible power systems (UPS) Method of specifying the performance and test requirements
    AS/NZS 3200.1.8:2005 Medical electrical equipment General requirements for safety - Collateral Standard: General requirements, tests and guidance for alarm systems in medical electrical equipment and medical electrical systems
    AS ISO 8253.1-2009 Acoustics - Audiometric test methods Basic pure tone air and bone conduction threshold audiometry
    AS/NZS CISPR 20:2009 Sound and television broadcast receivers and associated equipment - Immunity characteristics - Limits and methods of measure (Reconfirmed 2017)
    AS 62271.203-2005 High-voltage switchgear and controlgear Gas-insulated metal-enclosed switchgear for rated voltages above 52 kV (IEC 62271-203, Ed. 1.0 (2003) MOD)
    AS/NZS 1269.4:2014 Occupational noise management Auditory assessment
    AS 1603.3:2018 Automatic fire detection and alarm systems Heat alarms
    AS/NZS 2107:2016 Acoustics - Recommended design sound levels and reverberation times for building interiors
    AS/NZS 60076.10:2009 Power transformers Determination of sound levels (IEC 60076-10, Ed.1 (2001) MOD)
    • 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