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  • IEC 61260-1:2014

    Current The latest, up-to-date edition.

    Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications

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

    Language(s):  English - French

    Published date:  14-02-2014

    Publisher:  International Electrotechnical Committee

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    Abstract - (Show below) - (Hide below)

    IEC 61260-1:2014 specifies performance requirements for analogue, sampled-data, and digital implementations of band-pass filters. The extent of the pass-band region of a filter's relative attenuation characteristic is a constant percentage of the exact mid-band frequency for all filters of a given bandwidth. An instrument conforming to the requirements of this standard may contain any number of contiguous band-pass filters covering any desired frequency range. Performance requirements are provided for two filter classes: class 1 and class 2. In general, specifications for class 1 and class 2 filters have the same design goals and differ mainly in the acceptance limits and the range of operational temperature. Acceptance limits for class 2 are greater than, or equal to, those for class 1. Maximum-permitted expanded uncertainties of measurement are also specified. Band-pass filters conforming to the performance requirements of this standard may be part of various measurement systems or may be an integral component of a specific instrument such as a spectrum analyser. This standard specifies the ranges of environmental conditions for operation of the filters. The required range depends on whether the instrument containing the filters is designed to be operated in a controlled environment or more generally in the field. Band-pass filters conforming to the requirements of this standard are capable of providing frequency-band-filtered spectral information for a wide variety of signals, for example, time-varying, intermittent or steady; broadband or discrete frequency; and long or short durations. This first edition of IEC 61260-1, future IEC 61260-2 and future IEC 61260-3, cancel and replace the first edition of IEC 61260 (1995) and its amendment 1 (2001). This edition constitutes a technical revision which includes the following significant technical changes with respect to the IEC 61260 (1995) and its amendment 1 (2001):
    - the single document in the first edition of IEC 61260 (1995) and its amendment 1 (2001) is in IEC 61260 series separated into the three parts covering: specifications, pattern evaluation tests and periodic tests;
    - the performance category class 0 is removed;
    - the design goals for the specification can be based only base-10;
    - the reference environmental conditions have been changed from 20 °C / 65 % RH to 23 °C / 50 % RH; and
    - IEC 61260 (1995) specified tolerance limits without considering the uncertainty of measurement for verification of the specifications. IEC 61260 series specifies acceptance limits for the observed values and maximum-permitted uncertainty of measurements for laboratories testing conformance to specifications in the standard.

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

    Committee TC 29
    Development Note Together with IEC 61260-2 and IEC 61260-3, it supersedes IEC 61260. Stability date: 2017. (04/2016)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

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    EN ISO 11819-2:2017 Acoustics - Measurement of the influence of road surfaces on traffic noise - Part 2: The close-proximity method (ISO 11819-2:2017)
    EN ISO 8041-1:2017 Human response to vibration - Measuring instrumentation - Part 1: General purpose vibration meters (ISO 8041-1:2017)
    DIN ISO 5129 E : 2014 ACOUSTICS - MEASUREMENT OF SOUND PRESSURE LEVELS IN THE INTERIOR OF AIRCRAFT DURING FLIGHT (ISO 5129:2001 + AMD.1:2013)
    BS ISO 532-2:2017 Acoustics. Methods for calculating loudness Moore-Glasberg method
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    I.S. EN 61669:2016 ELECTROACOUSTICS - MEASUREMENT OF REAL-EAR ACOUSTICAL PERFORMANCE CHARACTERISTICS OF HEARING AIDS
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    I.S. EN ISO 8041-1:2017 HUMAN RESPONSE TO VIBRATION - MEASURING INSTRUMENTATION - PART 1: GENERAL PURPOSE VIBRATION METERS (ISO 8041-1:2017)
    I.S. EN 61260-2:2016 ELECTROACOUSTICS - OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND FILTERS - PART 2: PATTERN-EVALUATION TESTS
    17/30304301 DC : 0 BS EN 15610 - RAILWAY APPLICATIONS - ACOUSTICS - RAIL AND WHEEL ROUGHNESS MEASUREMENT RELATED TO ROLLING NOISE GENERATION
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    CEN/TR 16891:2016 Railway applications - Acoustics - Measurement method for combined roughness, track decay rates and transfer functions
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