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  • BSI
    BS 6069-4.2:1991 Characterization of air quality. Stationary source emissions. - Method for the determination of asbestos plant emissions by fibre count measurement
    Edition: 1991
    $411.69
    / user per year

Description of BS 6069-4.2:1991 1991

This Section of BS 6069 describes a method, using a fibre count technique, for the assessment of fibre concentrations in flowing gas streams in ducts, chimneys or flues from asbestos-using industrial processes.

This method is intended to be used to determine fibre concentrations from a wide range of processes where it is known that regulated fibres are present in emissions. No attempt is made to identify asbestos fibre types separately from other fibres.

NOTE 1 If fibre identification is required, then reference should be made to the use of electron microscopy and the Health and Safety Executive.

NOTE 2 This method may be used to check that dust collection equipment used to trap asbestos fibres, or prevent their escaping into the atmosphere, is working properly and effectively.

NOTE 3 This method is suitable for measuring fibre concentrations as described in European Community Council Directive No. 87/217/EEC on the prevention and reduction of environmental pollution by asbestos.

The range of application of the method for concentrations of fibres in ducts is about 0.05 fibres/mL to 10 fibres/mL, although this range may vary slightly according to the sampled volume which, in turn, will depend on duct velocities and the sampling apparatus used. Appendix A gives safety precautions to be considered when carrying out the method described in this British Standard. Information on the accuracy and precision of the method is given in Appendix F. Appendix C gives information on sampling and measurement when the criteria given in this method cannot be met.

NOTE 4 The titles of the publications referred to in this standard are listed on the inside back cover.



Applicable to flowing gas streams in ducts, chimneys or flues from asbestos industrial processes, in the range 0.05 fibre/ml to 10 fibre/ml.

Standard NumberBS 6069-4.2:1991
TitleCharacterization of air quality. Stationary source emissions. - Method for the determination of asbestos plant emissions by fibre count measurement
StatusConfirmed
Publication Date1991-08-30
DescriptorsAcceptance (approval), Sampling equipment, Ducting, Asbestos, Sampling methods, Test equipment, Safety measures, Sample location, Industrial air pollutants, Air, Air pollution, Fibres, Microscopic analysis, Quality, Concentration, Filtration, Flues, Accuracy, Chimneys, Particulate air pollutants, Counting
ICS13.040.40 Stationary source emissions
CommitteeEH/2/1
ISBN0 580 19809 X
PublisherBSI
Pages26

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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