BACKGROUND & CLEARANCE MONITORING
CES carries out Reassurance, Background, Leak and Clearance monitoring throughout Wellington and New Zealand.
What is Clearance Monitoring?
When an asbestos removal specialist carries out any asbestos removal at a house, or commercial or industrial premise, they should be carrying it out in accordance with legislation and codes of practices which aim to protect the public and ensure the site is free from asbestos after the removal is complete. Clearance monitoring is asbestos air monitoring carried out at the removal site after the job has been completed and the removal specialist has cleaned the area. In many cases it is a four stage process involving inspection and testing even before the removal has started.
What about Background and Reassurance Monitoring?
Background monitoring and Leak monitoring can also be carried out during and throughout the removal process. Leak air monitoring occurs outside the 'enclosed removal area' to determine whether the area is secure and that no asbestos fibres are escaping during the removal process. Background monitoring occurs in the vicinity of the removal site.
Reassurance monitoring occurs in buildings and locations where asbestos is present but there has been no removal works carried out and the area or workplace remains occupied. Air monitoring in such areas can help to reassure occupants of the air quality.
What is a fibre count?
When carrying out air monitoring we use small air pumps which draw a known quantity of air over a known period of time over a membrane or SEM filter. We can conducted High volume sampling or 4 and 8 hours sampling periods. The filter traps fibres, which can then be counted under a microscope. The number of fibres on the filter is an indication of whether the air in the tested enclosure or area is satisfactory or not.
How it works...
Complete the online request for ASSESSOR WORKS BOOKING form or RESIDENTIAL REQUEST form via our website email. Feel free to call us to discuss your monitoring requirements.