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  • BS 1747-11:1993

    Current The latest, up-to-date edition.

    Methods for measurement of air pollution Determination of a black smoke index in ambient air

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-09-1993

    Publisher:  British Standards Institution

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

    Committees responsible
    National foreword
    Method
    1 Scope
    2 Definition
    3 Principle and theory
    4 Apparatus
    5 Procedure
    6 Expression of results
    7 Test report
    Annex
    A (informative) Conversion of absorption coefficient
         to traditional black smoke units
    Tables
    1 Confidence limits for absorption coefficients
    A.1 Absorption coefficient and black smoke index
    Figures
    1 Alternative sampling arrangements for black smoke
         measurement
    2 Reflectometer response
    A.1 Black smoke calibration curve

    Abstract - (Show below) - (Hide below)

    Gives a reflectance method for continuous or daily measurement of the black smoke index in the range 6 to 375.

    Scope - (Show below) - (Hide below)

    This International Standard specifies a method for measuring the black smoke index of an ambient air sample. The method is based on the staining effect of particles which is produced when a sample of air is drawn through a filter paper.

    The method is intended for the measurement of a black smoke index in the range 6 to 375 in the ambient atmosphere. It is based on the measurement of reflectance. The method does not measure the mass concentration of particles directly.

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

    Committee EH/2/3
    Development Note Supersedes 91/51945 DC. Also numbered as ISO 9835. (06/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes
    View more information

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