Document ID: chunk:federal_register_of_legislation:F2016L00418:body:0:p25
Version: federal_register_of_legislation:F2016L00418
Segment Type: other
Provision Reference: 
Character Range: 64395–67124

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 removal.
A wetting agent (surfactant), for example detergent, may be added to the water to facilitate more rapid wetting of the asbestos.
A manually controlled, consistent low-pressure, fine spray (for example, from an adjustable pistol-grip garden hose) is recommended.
For very small areas, a small spray water bottle may be sufficient. In all cases, the use of water should be in the form of a mist to minimise the potential to generate respirable dust.
The asbestos should be wetted through to its full depth and the water spray should be directed at the site of the cut. The wetted material should be removed as the cut is progressed.
Immediately after the asbestos is removed from its fixed or installed position, spray should be directed on sides previously not exposed.
The wet friable asbestos removed in sections should immediately be placed in suitably labelled asbestos waste containers and properly sealed along with any small sections dislodged as the asbestos is cut.
Wherever reasonably practicable, a HEPA-fitted vacuum cleaner should be used in conjunction with the wet spray method. The HEPA vacuum cleaner should be used prior to spraying asbestos with water and for the collection of any dust spread over a large area.
Airborne asbestos fibres are significantly suppressed when the wet spray method is used; however, they are not entirely eliminated so effective PPE including RPE is also essential. Refer to Section 4.5 of this Code for information on RPE.
Consideration should be given to applying a PVA emulsion as it may be more effective than water (with a wetting agent) in minimising fibre release. For example, PVA can be applied and allowed to dry on AC roofing prior to its removal as an alternative method to prevent slip hazards.

Saturation and water injection method
The soaking method with total saturation should be used if the asbestos is so thick that the spray method will not suppress the asbestos significantly. This method involves injecting water or a water-based solution directly into friable asbestos. It is a process that requires specific training in relation to the use of the equipment and the process.

The asbestos is soaked by the introduction of water or other wetting agents through an appropriate applicator that consists of an injection head with numerous side holes or outlets through which the water or wetting agent is fed to the asbestos.
To facilitate more rapid wetting of the asbestos, holes or cuts should be made in the outer