Current through Register Vol. 49, No. 13, September 23, 2024
Subpart 1.
Application.
When a portion of a project includes the removal,
encapsulation, or enclosure of less than 25 linear feet of asbestos-containing
pipe lagging or less than ten square feet of asbestos-containing material per
room, for that portion of the project the person performing abatement may use
the glove bag procedures in this part instead of the procedures in parts
4620.3566 to 4620.3575, subparts 1 to 8.
In process areas of facilities not accessible to the general
public and designated in Division B, D, or E of the 1987 edition of the
Standard Industrial Classification Manual, asbestos-containing material may be
abated in quantities up to 25 linear feet or ten square feet for each 15,000
square foot area of floor space using the glove bag procedures in this part
instead of the procedures in parts 4620.3566 to 4620.3575, subparts 1 to 8.
Division B, D, and E of the 1987 edition of the Standard Industrial
Classification Manual are incorporated by reference and are not subject to
frequent change. A copy of this material is available from the State Law
Library, Minnesota Judicial Center, 25 Rev. Dr. Martin Luther King Jr. Blvd.,
St. Paul, MN 55155, or for loan or inspection from the Barr Library of the
Minnesota Department of Health or through the Minitex interlibrary loan
system.
Subp. 2.
Placement of remote decontamination unit.
A remote decontamination unit must be available for any
individual performing the glove bag operation before the glove bag is set up.
The remote decontamination unit must be used whenever the individual leaves the
asbestos work area. The remote decontamination unit must be:
A. placed within 20 feet of the glove bag
operation; or
B. used with the
procedures in subitems (1) and (2) to prevent contamination of any area between
the glove bag operation and the remote decontamination unit.
(1) For an individual wearing a single layer
of protective clothing, before leaving the asbestos work area, the individual
must use a HEPA-filter equipped vacuum to remove contamination from protective
clothing and exposed body surfaces. A clean second layer of protective clothing
must be placed over existing protective clothing before proceeding to the
remote decontamination area.
(2)
For an individual wearing two layers of protective clothing, before leaving the
asbestos work area, the individual must use a HEPA-filter equipped vacuum to
remove contamination from the outer layer of protective clothing and exposed
body surfaces. The individual must then remove the outer layer of protective
clothing before proceeding to the remote decontamination unit.
Subp. 3.
Remote
decontamination unit.
For each glove bag operation, a remote decontamination unit
must be used that complies with part 4620.3569, subparts 1, items B to D, and
2.
Subp. 4.
Glove bag
set-up procedure.
For each abatement project using a glove bag, the glove bag
procedures in this subpart must be followed.
A. Before the glove bag operation begins, the
area within ten feet of the glove bag operation must be cleaned using a
HEPA-filter equipped vacuum, wet wiping, or both, until no dust nor debris is
visible.
B. Polyethylene sheeting
of at least one layer of six-mil or comparable material must be placed on the
floor below the glove bag operation.
C. Glove bags must be constructed of
transparent six-mil polyethylene.
D. If a glove bag is to be used on one
portion of a continuous section of damaged or significantly damaged thermal
system insulation, the entire section of damaged or significantly damaged
thermal system insulation must be sealed in two layers of six-mil polyethylene
sheeting. Edges of the sheeting must be secured with tape.
E. The glove bag must be attached so
asbestos-containing material adjacent to the glove bag is not disturbed during
glove bag preparation.
F. Removal
and encapsulation of asbestos-containing material must be done inside the glove
bag.
G. All openings in the glove
bag, including openings from insertion of tools, sprayers, or HEPA-filter
equipped nozzles must be securely sealed with tape before removal or
encapsulation begins.
H. Before
removal or encapsulation begins, the glove bag must be smoke tested for any
breach in the seal.
(1) The smoke must be
released inside the glove bag.
(2)
To test the seal of the glove bag, pressure must be applied to the outside of
the glove bag.
(3) The glove bag
must be visually inspected for smoke leaking or escaping from the glove bag,
with attention given to the seams of the glove bag and points of
attachment.
(4) All detectable
leaks must be repaired with tape before removal or encapsulation of the
asbestos-containing material.
Subp. 5.
Asbestos removal or
encapsulation.
For each abatement project using a glove bag, the procedures
in this subpart must be followed for the removal or encapsulation of
asbestos-containing material using a glove bag.
A. Sliding the glove bag during or following
asbestos removal or encapsulation is prohibited.
B. A glove bag must not be used more than
once.
C. Asbestos-containing
material must be adequately wet at all times during removal.
D. An airless or Hudson-type sprayer must be
used to wet the asbestos-containing material.
E. Surfaces from which asbestos has been
removed must be cleaned with a brush and wet wiped until no visible
asbestos-containing material remains.
F. All exposed asbestos-containing material
within the glove bag must be encapsulated with an encapsulant before the glove
bag is removed according to part 4620.3572.
G. A visual inspection of the abated surface
within the glove bag must be performed before the glove bag is removed. The
glove bag operation is not complete until all visible asbestos-containing
material is removed or encapsulated.
Subp. 6.
Completion of glove bag
operation.
Every glove bag operation must be completed according to the
procedures in this subpart.
A. Before
the glove bag is removed, the interior surfaces of the glove bag must be
cleaned using an airless or Hudson-type sprayer until no visible residue is
seen on the top and vertical sides of the glove bag.
B. Tools must be removed from the glove bag
as specified in this item.
(1) With hands in
the gloves, tools must be grabbed and the gloves pulled inside out.
(2) The air in the glove bag must be
evacuated using a HEPA-filter equipped vacuum.
(3) With the tools in them, the glove must be
twisted and sealed with tape. The glove must then be cut off by cutting across
the middle of the tape.
(4) The
glove containing the tools must be labeled as asbestos-containing
material.
(5) The glove containing
the tools must be opened only inside another glove bag, decontamination unit,
containment, or when submerged under water.
(6) The glove containing the tools, if
transported off site, must be placed in a leak-tight container and labeled as
asbestos-containing material.
(7)
That portion of the sprayer that was inside the glove bag must be wet wiped as
it is pulled out of the glove bag. The hole resulting from removal of the
sprayer must immediately be sealed with tape.
C. The glove bag must be collapsed using a
HEPA-filter equipped vacuum.
D.
After the glove bag is collapsed, the glove bag must be squeezed tightly as
close to the top of the glove bag as possible, twisted, and bound with
tape.
E. The glove bag must then be
cut from the pipe or other facility component and placed in a leak-tight
container and the container handled according to part 4620.3575, subpart
9.
F. The area beneath the glove
bag operation must be inspected for any dust or debris resulting from the glove
bag operation.
G. Dust and debris
from the glove bag operation must be assumed to be asbestos-containing material
and must be cleaned using a HEPA-filter equipped vacuum or wet wiped.
H. The six-mil polyethylene sheeting must not
be reused. The sheeting must be bagged, labeled as asbestos-containing waste,
and handled as specified in part 4620.3575, subpart 9.
Subp. 7.
On-site handling of
asbestos-containing waste.
On-site handling of asbestos-containing waste from a glove
bag operation must comply with part 4620.3575, subpart 9.
Statutory Authority: MS s
144.05;
326.70 to
326.81
