Mini Course - Air Monitoring for Asbestos (Membrane Filter Method)

Air Monitoring for Asbestos

The ‘membrane filter method’ is the common method used to determine airborne asbestos fibre concentrations in the work environment. It refers to one of a number of published methodologies which set out specifications for sampling, processing and analysing equipment and procedures, supported by protocols for classifying, counting and reporting results.

The commonly used methodologies are:

  • (Australia) NOHSC: 3003(2005) Guidance Note on the Membrane Filter Method for Estimating Airborne Asbestos Fibres (2nd Ed)
  • (UK) HSG 248 Asbestos: The analysts' guide for sampling, analysis and clearance procedures 2005
  • (International - ISO) ISO 8672-2014 Air quality. Determination of the number concentration of airborne inorganic fibres by phase contrast optical microscopy. Membrane filter method
  • (International - WHO) Determination of airborne fibre concentrations. A recommended method, by phase-contrast optical microscopy (membrane filter method), WHO Geneva 1997 (ISBN 92 4 154496 1)
  • (US) ASTM STP834 Membrane Filter Method for Estimating Asbestos Fiber Exposure.

This course provides an overview of these methods in order to give a general guidance to those performing asbestos related air monitoring.


Your Instructor


Asbestos Aware
Asbestos Aware

Asbestos Aware was created by New Zealand based asbestos industry professionals. The team have a combined experience of over 40 years and qualifications that include the British Occupational Hygiene Society (BOHS) Asbestos Proficiency (P) Certificates from P401 to P405. The team hold current New Zealand Asbestos Assessor Licences.


Course Curriculum


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