Removing asbestos in workplaces - Compliance ... - WorkSafe Victoria

Specific requirements for removalof friable ACMSecurity and checks when using an enclosure358. The licensed removalist needs to ensure an employee is stationed outsidethe asbestos work area for the duration of the asbestos removal work to:• liaise with the project supervisor• check and maintain negative air units, compressor units, decontaminationunits and hot water service• ensure security of the area is maintained• communicate with personnel inside the work enclosure• instigate emergency or evacuation procedures if necessary.359. Records of these checks need to be made on a daily basis and kept (referto Appendix G for a suggested log).Small-scale removal workMini-enclosures360. Mini-enclosures are suitable for asbestos removal work in areas with restrictedaccess, such as ceiling spaces and for emergency asbestos removals.361. The mini-enclosure has to be large enough to allow movement inside theenclosure and contain all the equipment needed for the asbestos removal work.See Figure 9, on page 61.362. Machinery that emits exhaust fumes should not be placed in a mini-enclosure.363. The frame of a mini-enclosure can be made from a variety of materials, but hasto be strong enough to support the plastic sheeting that forms the enclosure.364. Heavy-duty plastic sheeting (200 micron minimum thickness) needs to be usedfor making the enclosure. Recycled plastic (including re-milled plastic) shouldnot be used.365. The tape used to connect the plastic to the frame needs to be strong enoughto securely hold the plastic to the frame. A smoke test of the enclosure mustbe done to check the sealing of the plastic sheeting. For mini-enclosures,a smoke tube may be used to perform this task.366. A slit will have to be made in the plastic sheeting to allow entry. This slitcan then be taped from inside the enclosure. See Figure 9 on page 61for a typical layout.367. The hazards and work procedures that need to be considered for largeenclosures (discussed in ‘Large-scale removal work’ on page 55) also needto be taken into account for mini-enclosures.368. Employees leaving a mini-enclosure need to follow personal decontaminationprocedures based on a combination of the procedures described in‘Decontamination facilities and methods’ on page 33.60 Compliance code / Removing asbestos in workplaces WorkSafe Victoria