recording instrument and Records shall be provided daily on the same day
collected to the CO. The CO shall be notified immediately if the pressure
differential falls below the prescribed minimum. The building ventilation
system shall not be used as the local exhaust system for the regulated
area. The NPE shall terminate outdoors unless an alternate arrangement is
allowed by the CO. All filters used shall be new at the beginning of the
project and shall be periodically changed as necessary and disposed of as
ACM waste.
3.6.5.2
Glovebag Systems
Glovebag systems shall be as shown in SETUP DETAIL SHEET 10. Glovebags
shall be used without modification, smoke-tested for leaks, and completely
cover the circumference of pipe or other structures where the work is to be
done. Glovebags shall be used only once and shall not be moved. Glovebags
shall not be used on surfaces that have temperatures exceeding 66 degrees C
150 degrees F. Prior to disposal, glovebags shall be collapsed using a
HEPA vacuum. Before beginning the operation, loose and friable material
adjacent to the glovebag operation shall be wrapped and sealed in 2 layers
of plastic or otherwise rendered intact. At least 2 persons shall perform
glovebag removal. Asbestos regulated work areas shall be established as
shown on [detailed drawings and plans] [Table 1] for glovebag abatement.
Designated boundary limits for the asbestos work shall be established with
rope or other continuous barriers and all other requirements for asbestos
control areas shall be maintained, including area signage and boundary
warning tape as specified in SET-UP DETAIL SHEET 11.
a.
The Contractor shall attach HEPA vacuum systems to the bag to
prevent collapse during removal of ACM.
b.
The negative pressure glove boxes shall be fitted with gloved
apertures and a bagging outlet and constructed with rigid sides
from metal or other material which can withstand the weight of the
ACM and water used during removal. A negative pressure shall be
created in the system using a HEPA filtration system. The box
shall be smoke tested for leaks prior to each use.
3.6.5.3
Mini-Enclosures
[Single bulkhead containment] [Double bulkhead containment] [or]
[Mini-containment (small walk-in enclosure)] as shown in SETUP DETAIL SHEET
[5] [6] [7] to accommodate no more than 2 persons, may be used if the
disturbance or removal can be completely contained by the enclosure. The
mini-enclosure shall be inspected for leaks and smoke tested before each
use. Air movement shall be directed away from the employee's breathing
zone within the mini-enclosure.
3.6.5.4
Wrap and Cut Operation
**************************************************************************
Note: When pipes are insulated with ACM, removal of
the entire pipe may be more protective, easier, and
more cost-effective than stripping the asbestos
insulation from the pipe. The wrap and cut
procedure consists of 2 distinct operations. The
wrap portion requires the removal of small amounts
of asbestos from either side of the pipe to be cut;
this will be a Class I or III operation depending on
the amount of asbestos removed. Once the asbestos
SECTION 13280A
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