Document ID: chunk:federal_register_of_legislation:F2016L00418:body:0:p24
Version: federal_register_of_legislation:F2016L00418
Segment Type: other
Provision Reference: 
Character Range: 61855–64631

may be appropriate for non-friable asbestos removal work of short duration.
The location of barricades will depend on the physical environment and the level of risk.
An assessment of the asbestos removal work site should determine the appropriate placement
of barricades.
For example, a non-friable asbestos cement removal job where the asbestos cement is in good condition may use a wall located three metres from the asbestos removal area as the barrier.
A friable sprayed asbestos removal job being performed dry due to electrical restrictions may require a barricade 15 metres from the asbestos removal area.
In determining the distance between barriers and the asbestos removal area, the following should be considered:
    * whether the asbestos is friable or non-friable
    * activity around the asbestos removal area (for example, other workers, visitors, neighbours, the public) to determine the risk of exposure to other people
    * the method of asbestos removal
    * any existing barriers (walls, doors)
    * the quantity of asbestos to be removed
    * the type of barrier used (for example, hoarding or tape).

4.3 Wet and dry methods
An asbestos removalist must use techniques to eliminate or minimise the generation of asbestos fibres so far as is reasonably practicable. They must choose the method of asbestos removal that is most effective at minimising fibre release at the source. The removal methods are listed in preferred order:
    * Wet spray method - asbestos fibres are significantly suppressed; however, they are not entirely eliminated so the use of RPE is as essential.
    * Saturation and water injection method – used during friable removal.
    * Dry method - can only be used if the wet spray method is not suitable, for example if there are live electrical conductors or if equipment could be permanently damaged or made dangerous by contact with water.

Wet spray method
The wet spray method is the preferred asbestos removal method and should be used for the removal of asbestos from structures and plant. The wet spray method requires the use of a constant low-pressure water supply for wetting down asbestos and related items to suppress asbestos fibres. This can be achieved with a mains-supplied garden hose fitted with a pistol grip.
 If no water supply is readily available, a portable pressurised vessel (for example, a pump-up garden sprayer) may be used.
The design of the spraying equipment will depend on the availability of a water supply and access to the area to be sprayed.
The wet spray method involves applying a fine water spray to the asbestos in a manner that ensures the entire surface of the asbestos is saturated and the run-off is minimised. The asbestos should be maintained in a wet condition throughout the