Document ID: chunk:federal_register_of_legislation:F2016L00418:body:0:p48
Version: federal_register_of_legislation:F2016L00418
Segment Type: other
Provision Reference: 
Character Range: 124560–127413

enclosures should also be considered for mini-enclosures.

Building the mini-enclosure
To build a mini-enclosure, the below process should be followed:
    * Off-the-shelf mini-enclosures can be used or alternatively timber or other materials can be used to build a frame. The frame of a mini-enclosure can be made from a variety of materials, but has to be strong enough to support the plastic sheeting that forms the enclosure.
    * Heavy-duty plastic sheeting (200 µm minimum thickness) should be used for making the enclosure. Do not use recycled or re-milled plastic.
    * Make the enclosure large enough to do the work safely, allowing for movement inside the enclosure and all the equipment needed for the removal work such as tools for the task including a bucket of water, rags, sprayer, vacuum cleaner nozzle and hose.
    * Machinery that emits exhaust fumes should not be placed in a mini-enclosure.
    * Attach the polythene sheeting inside the frame with duct tape.
    * Attach the polythene sheeting to the ceiling with masking tape only. Attach it to non-asbestos surfaces with duct tape. The tape used to connect the plastic to the frame should be strong enough to securely hold the plastic to the frame.
    * Make an entry slit in one wall of the enclosure and reinforce this with duct tape from inside the enclosure. Attach a polythene sheet above the entry slit to cover it.
    * Check all seals inside the enclosures for leaks with a smoke test using smoke tubes for mini-enclosures. The competent person, usually the licensed asbestos supervisor, outside the enclosure should check for leaks outside the enclosure and seals all leaks.

Figure 3 Building and using the enclosure

Dismantling the mini-enclosure
To eliminate or minimise airborne asbestos fibres escaping when dismantling the mini-enclosure, the below process should be followed:
    * Put the asbestos waste in a clear bag with an asbestos warning sign or label to indicate the presence of asbestos.
    * Clean the enclosed area with an asbestos vacuum cleaner.
    * Clean the equipment and polythene sheeting with damp rags.
    * Workers leaving a mini-enclosure must follow personal decontamination procedures.
    * Inspect the enclosure visually for cleanliness.
    * Ensure that a clearance inspection is conducted by an independent licensed asbestos assessor or competent person and a clearance certificate is issued.
    * Spray the polythene sheeting with PVA sealant.
    * Remove the sheeting from the framework and put it in the labelled asbestos waste container.
    * Remove PPE and put it in the labelled asbestos waste container, taping the container closed.
    * If the framework was fully protected and had been decontaminated and inspected by the asbestos removalist, it can be reused.

6.2 Glove bag asbestos removal work
The glove