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  • ANSI/ASA S12.8 : 1998(R2013)

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    METHODS FOR DETERMINING THE INSERTION LOSS OF OUTDOOR NOISE BARRIERS

    Available format(s):  Hardcopy, PDF

    Superseded date:  29-06-2020

    Language(s):  English

    Published date:  28-05-2013

    Publisher:  Acoustical Society of America

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

    Foreword
    0 Introduction
    1 Scope
    2 Normative references
    3 Definitions
    4 Methods
    5 Sound sources and source equivalence
    6 Acoustical environment
    7 Instruments
    8 Measurements
    9 Computations
    10 Test Report
    Annex A (informative) - Effects of atmospheric conditions
    Annex B (informative) - Worksheet forms
    ANNEX C (informative) - Example computation of the insertion
            loss of an outdoor noise barrier

    Abstract - (Show below) - (Hide below)

    Includes insertion loss determination, by measurement or by the combination of measurement and prediction, for outdoor noise barriers of all types and gives two methods for indirectly determining the level of the BEFORE sound. The two methods are: (1) by measurement at a second site that is equivalent to the desired site prior to installation of the barrier, or (2) by prediction of the BEFORE sound levels.

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

    Committee TC 43
    Document Type Standard
    Product Note Reconfirmed 2013
    Publisher Acoustical Society of America
    Status Superseded
    Superseded By
    Supersedes

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

    ANSI/ASA S1.1:2013 ACOUSTICAL TERMINOLOGY
    ANSI S1.4 : 1983 SPECIFICATION FOR SOUND LEVEL METERS
    ANSI S1.11 : 2014 SPECIFICATION FOR OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND ANALOG AND DIGITAL FILTERS
    ANSI S12.9 PT1 : 2013 QUANTITIES AND PROCEDURES FOR DESCRIPTION AND MEASUREMENT OF ENVIRONMENTAL SOUND - PART 1: BASIC QUANTITIES AND DEFINITIONS
    ANSI/ASA S1.26 : 2014 METHOD FOR CALCULATION OF THE ABSORPTION OF SOUND BY THE ATMOSPHERE
    ANSI S1.43 : 1997 SPECIFICATIONS FOR INTEGRATING-AVERAGING SOUND LEVEL METERS
    SAE J 184 : 2014 QUALIFYING A SOUND DATA ACQUISITION SYSTEM
    ANSI S12.9 PT3 : 2013 QUANTITIES AND PROCEDURES FOR DESCRIPTION AND MEASUREMENT OF ENVIRONMENTAL SOUND - PART 3: SHORT-TERM MEASUREMENTS WITH AN OBSERVER PRESENT
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