Washington State University
SAFETY POLICIES AND PROCEDURES MANUAL
Environmental Health and Safety
Disposal of Glass Waste
University personnel who dispose of glass are responsible for
following procedures in this section. Appropriate disposal of glass minimizes
hazards to laboratory workers, custodians, and solid waste disposal employees.
Custodians and solid waste disposal employees are not required to dispose
of any glass which is not placed in containers as described in this section.
This procedure applies to the disposal of all WSU glass materials
except glass materials managed by WSU Recycling (i.e., glass bottles and
jars placed in designated recycling receptacles).
Noncontaminated glass waste is to be placed in appropriate containers
and disposed of as follows. (See below for disposal of glass which is contaminated
by radiation, acutely hazardous chemicals, or biologically hazardous material.)
Weight Limit for Disposal
The total weight of a glass disposal box ready for removal by
custodians may not exceed 40 pounds. This limit includes both the weight
of the glass and the weight of the container.
All boxes containing waste glass must be designed and maintained
so they can be handled easily and safely by laboratory, custodial, and solid
waste collection personnel. There must be no failure of the integrity of
the container during transport which could expose laboratory or service
personnel to cutting or puncture hazards.
Custodial or solid waste disposal employees are not required to handle any
waste glass container which could rupture during handling.
Place waste glass materials in one of the following types of
- A plastic disposal container with a plastic liner commercially designed
for glass disposal, or
- A galvanized metal container having an inner liner of a disposable
cardboard box. (A plastic liner may be used instead of the cardboard box
if the metal container is leakproof.)
The department or laboratory generating glass wastes is responsible
for purchasing or otherwise obtaining disposal containers.
Plastic Disposal Containers
Commercially-made plastic disposal containers and liners are
available from University Stores. The 10-gallon containers come with a lid
and a plastic liner. Request item number 54190. For refill liners request
item number 51670.
The plastic containers are labeled, "Glass Waste."
Print the building and room number on the outside of the plastic container.
Place the plastic liner bag inside the plastic container.
After the liner is filled, close the liner bag with a twist tie and shut
the container lid.
Notify the custodian that the container is ready for disposal.
The custodian removes the disposal container and dumps the filled plastic
liner into the building dumpster. The custodian does not directly handle
the liner. The custodian returns the plastic disposal container to the indicated
building and room.
Place a new plastic liner inside the plastic container.
Metal containers are available for purchase through the Facilities Operations
Sheet Metal Shop. The generating department or laboratory obtains
and installs interior cardboard liner boxes or plastic liners.
Disposal by Laboratory Employees
Label the metal container "Glass Waste." Also enter building name
and room number on the label.
Place a plastic liner or clean, cardboard box inside the metal container.
When the box is full of glass, close and tape shut the top of the cardboard
inner box (or close the plastic liner bag with a twist tie) and notify the
custodian that the box is to be emptied. The custodian removes the metal
box and dumps the interior cardboard box or plastic liner bag whole into
The custodian returns the metal box to the building and room indicated on
Place a new interior plastic liner bag or cardboard box inside the metal
If glass is disposed of by laboratory employees, a disposal
procedure is to be placed in the Laboratory Safety Manual. The procedure
- A description of the labeling placed on disposal containers. At minimum,
a container label indicates that the box contains noncontaminated waste
glass and shows building and room number.
- A description of how the glass waste is to be packed in order to prevent
injury to laboratory workers who transport waste to the building dumpster,
- A description of how the container is closed or secured (i.e., taped
shut), so that loose glass shards do not injure workers,
- A description of the personal protective equipment and specific safety
practices (e.g., back injury prevention training for lifting heavy objects)
used by laboratory employees who transport the glass waste, and
- A description of the actions laboratory employees take if injury occurs.
Process contaminated glass waste in the same manner as other
contaminated materials. Containers of contaminated glass are collected by
trained employees from the Facilities Operations, Radiation Safety Office, or
Environmental Health and Safety as appropriate.
Acutely Hazardous Chemicals
Glass contaminated with ACUTELY HAZARDOUS chemicals must be
triple rinsed and discarded as noncontaminated glass waste. The rinsate
must be collected and managed as a hazardous chemical waste (see 5.66).
Glass contaminated with chemicals not designated as ACUTELY
HAZARDOUS may be emptied as much as is reasonably possible and disposed
of as noncontaminated glass waste.
Refer questions regarding chemically contaminated glass to Environmental
Health Services. Telephone 335-3041.
Biologically contaminated glass waste is bagged, then placed
in "biohazard" cardboard boxes available through University Stores.
These biohazard boxes are equipped with a proper warning symbol and a label
which must be filled out, indicating "biohazard contaminated glass
waste." See 4.24
for more about disposal of biohazards.
Note: Syringes and needles are managed according to the requirements
of a separate policy and procedure. See 4.25.
Biologically contaminated glass waste is collected at the same locations
as sharps containers. Refer to 4.25
for a list of collection locations for sharps containers.
Refer questions regarding biologically contaminated glass to
Environmental Health Services. Telephone 335-3041.
Place glass contaminated by radioactive materials in a plastic-lined
cardboard box which is labeled for radiation hazards. See also 9.60.
Refer questions regarding radiation contaminated glass to the
Radiation Safety Office. Telephone 335-8016.