Document ID: chunk:federal_register_of_legislation:F2016L00418:body:0:p44
Version: federal_register_of_legislation:F2016L00418
Segment Type: other
Provision Reference: 
Character Range: 113900–116809

areas occupied by unprotected persons, priority should be given to:
    * performing the asbestos removal work during periods when these areas are unoccupied
    * greater isolation of the asbestos removal area. This is the preferable option.
Consideration should be given to the use of hoarding to form a barrier between the asbestos removal work area and the adjoining occupied areas. A plastic-lined barrier should be erected within this hoarding and a buffer area should be reserved between the hoarding and occupied areas.
Platforms and fixed scaffolding should be erected during the early stages of the work. These structures should ideally be erected on the outside of the enclosed area. Any platforms or fixed scaffolding within the enclosed area must be decontaminated and visually inspected at the end of the asbestos removal work.
All tools and equipment used for asbestos removal work, including asbestos vacuum cleaners, must remain within the asbestos removal work area until the completion of the job.
All the plastic and tape used for the enclosure must be disposed of as asbestos waste. Any temporary structures must be disposed of as asbestos waste if they cannot be decontaminated. An inspection by a competent person will confirm if the structures are free of any visible asbestos.
Work methods should be adapted for the work environment within the enclosure. For example, rest breaks need to be based on a risk assessment taking into account factors such as the weather and heating/cooling requirements.

5.2 Testing an enclosure
Prior to the asbestos removal work commencing, the licensed asbestos removalist should ensure the enclosure is tested by an independent licensed asbestos assessor.
An independent licensed asbestos assessor should visually inspect, test and smoke the enclosure prior to commencement of the asbestos removal work.
    * While smoke is generated within the enclosure, a worker should be outside the enclosure to check for leaks.
    * Only smoke-generating devices incorporating non-oil-based, non-toxic smoke fluids can be used. Flares should not be used.
    * Smoke (fire) detection devices in the immediate vicinity of the asbestos removal area should be isolated for the duration of the smoke test.
    * The results of the smoke test should be documented and a copy provided to the licensed asbestos removalist.
Negative pressure exhaust units should not be used while the smoke test is being conducted.
The effectiveness of the enclosure should be regularly monitored while asbestos removal work is underway (for example, a visual examination, air-monitoring results and negative pressure readings).
If leaks or deficiencies are found during the initial testing of the enclosure, these must be rectified (an expandable foam sealant, tape or equivalent may be used) and another smoke test performed until no leaks or deficiencies are identified.
Following