Abstract Preview

The principle of the method specified is isokinetically withdrawing a known volume from a moving gas stream, passing the sampled gas through a filter medium to remove particulate matter (including fibres), treating the filter to make it transparent when viewed under a microscope and counting the number of fibres in a precise number of fields viewed using a phase-contrast optical microscope. The method may be used to determine fibre concentrations in flowing gas streams in ducts, chimneys, or flues from a wide range of industrial processes.


General information

  • Status :  Published
    Publication date : 1993-07
  • Edition : 1
    Number of pages : 19
  • :
    ISO/TC 146/SC 1
    Stationary source emissions
  • 13.040.40
    Stationary source emissions

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