CHEMICAL
WASTE
MANAGEMENT
GUIDE
ENVIRONMENTAL
HEALTH AND SAFETY
893-4428
CHEMICAL
WASTE MANAGEMENT GUIDE
TABLE
OF CONTENTS
I. OVERVIEW
II. IDENTIFYING A HAZARDOUS WASTE
A.
Characteristic Hazardous Wastes
B.
Listed Hazardous Wastes
III. LABELING REQUIREMENTS
IV. ACCUMULATION
REQUIREMENTS
V. WASTE SEGREGATION
VI. CONTAINER COMPATIBILITY
VII. SPECIAL WASTES
VIII. SPILL CLEAN-UP
PROCEDURES
IX. . WASTE MINIMIZATION
Appendix A – Toxicity
Characteristics
Appendix B – Listed
Hazardous Wastes
Appendix C -- Waste
Satellite Accumulation Area Requirements
CHEMICAL WASTE MANAGEMENT
GUIDE
I. OVERVIEW
The Federal Resource Conservation and
Recovery Act (RCRA) established the framework for hazardous waste regulation in
1976. RCRA was enacted by Congress to protect human health and the environment
from improper management of hazardous waste. RCRA introduced the concept that
the generator of a waste is responsible for proper waste management from
“cradle-to-grave” (i.e. from laboratory to complete destruction). RCRA
regulations are found in 40 CFR Parts 260-279.
At the
There
are specific regulatory requirements for individuals who generate and
accumulate chemical waste: minimize and recycle, properly label and identify,
and properly contain and dispose of chemical waste. The purpose of this
document is to assist labs and shops with this regulatory compliance. Every lab
and shop on campus is subject to unannounced inspections by both the Federal
Environmental Protection Agency (EPA) and the Pennsylvania Department of
Environmental Protection (DEP). Lack of compliance can result in citations and
fines.
The regulatory requirements covered in this
document include:
hazardous
waste determination
proper
labeling of a hazardous waste
requirements
for accumulation of hazardous waste
REGULATORY REQUIREMENTS
Increased public concern over environmental issues led to a major expansion of the federal and state environmental laws in past years. Aggressive enforcement of these laws by regulatory agencies has also increased. The regulations were developed to control industrial waste streams and are strictly enforced by the regulatory agencies. Although academic institutions generate less than one percent of the national waste stream and are not industrial in nature, no exemptions exist for academic institutions or their employees.
The numerous environmental laws enacted have been documented in thousands of pages of regulations, creating an extremely complex scheme. Despite this complexity, liability for noncompliance with environmental regulations is not limited to major,
intentional offenses that cause significant harm to public health or the environment. In fact, sizable penalties have been imposed for relatively minor, inadvertent violations.
Regulatory agencies and the courts assume that persons working with chemicals today are knowledgeable of the potential hazards involved with their work. Therefore, civil and criminal penalties can be imposed on institutions for non-compliance.
Further, this liability can extend beyond the institution to individuals, based on the reasoning that all responsible personnel, from a lab instructor to a college president, share in the responsibility of ensuring compliance with the environmental laws.
The Environmental Protection Agency (EPA) regulates controlled waste through six major regulatory programs: RCRA, CERCLA, TSCA, FIFRA, CWA, AND CAA. The Department of Transportation (DOT) regulates the transportation of Hazardous Materials and hazardous Substances. The Occupational Safety and Health Administration (OSHA) develops and enforces safety standards for response to hazardous chemical emergencies, employee awareness and right-to-know chemical information, as well as laboratory safety standards.
RCRA (1976)
Resources Conservation and Recovery Act. Defined and regulated solid and hazardous waste. (Regulations directly impact the hazardous waste generator.)
HSWA (1984)
Hazardous and Solid Waste Amendments. Made RCRA more stringent. (Regulations directly impact the hazardous waste generator.)
CERCLA (1980)
Comprehensive Environmental Response, Compensation and Liability Act (Superfund). Provides mechanism to assign liability to corporations and individuals. (May impact the hazardous waste generator.)
SARA (1988)
Superfund Amendments and Reauthorization Act. Created Community Right-To-Know for hazardous and toxic chemical reporting.
TSCA (1976)
Toxic Substances Control Act. Regulated chemical usage, including PCB usage, storage, and disposal.
FIFRA (1988)
Federal Insecticide, Fungicide, and Rodenticide Act. Controls the manufacture and use of pesticides intended to kill, repel, or control living organisms.
CAA (1963)
Clean Air Act. Regulates discharges to air. (Regulations directly impact the hazardous waste generator.)
CAAA (1990)
Clean Air Act Amendments.
CWA (1977)
Clean Water Act, Regulates discharges to water. (Regulations directly impact the hazardous waste generator.)
HMTA (1991)
Hazardous Materials Transportation Act. Regulates packaging and transportation of hazardous materials.
HAZWOPER (1989)
Hazardous Waste Operations and Emergency Response. Sets standards for employee safety.
HAZCOM (1983)
Hazard Communication (Right-To-Know). Employers must inform employees of chemical hazards. (Regulations directly impact the hazardous waste generator.)
LSS (1991)
Laboratory Safety
Standard (Occupational Exposure to Hazardous Chemicals in Laboratories).
Laboratories must develop Chemical Hygiene Plans, etc. (Regulations directly
impact the hazardous waste generator.)
Parts of Title 40 of the CFR Regarding Permitting and Hazardous Waste Handling and Disposal
260 Hazardous Waste Management System: General 40CFR260
261 Identification and Listing of Hazardous Waste 40CFR261
262 Standards Applicable to Generation of Hazardous Waste 40CFR262
263 Standards Applicable to Transporters of Hazardous Waste 40CFR263
264 Standards for treatment, Storage and Disposal Facilities 40CFR264
265 Interim Standards for Owners and Operators of TSD Fac. 40CFR265
266 Reserved 40CFR266
267 Interim Stds. For Owners and Operators of New TSD Fac. 40CFR267
270 EPA Hazardous Waste Permit Program 40CFR270
271 Requirements for Authorization of state Hazardous Waste 40CFR271
Programs
II. IDENTIFYING A HAZARDOUS
WASTE
Waste: A material/chemical that has no intended use
or reuse, including chemicals and
materials from a spill clean up. The requirements
described in this guide do not apply until a material becomes a waste. All wastes
generated at the University must be characterized to determine whether they are
a hazardous waste. A waste is determined to be hazardous by two means:
characteristic or listed.
A. Characteristic Hazardous Wastes
A waste is hazardous if it exhibits any one
of the four characteristics of a hazardous waste. The following are the four
characteristics and a few examples of common wastes at the University:
1. Ignitable
Any liquid waste having a flashpoint of less than 140 degrees F. is considered an ignitable hazardous waste. A flashpoint can generally be determined by reference to the container label, a material safety data sheet, a chemical reference guide, or testing. The following are examples of ignitable wastes: ethyl ether, methanol, ethanol, acetone, toluene, benzene, pentane, hexane, and xylem. Solids are also regulated as ignitable waste if the material is capable of ignition through friction, moisture absorption, or spontaneous chemical changes and burns so vigorously and persistently as to create a hazard. Many commercial products may also exhibit the characteristic of ignitability. Oxidizers are also considered ignitable hazardous wastes.
2. Corrosive Any waste with a pH less than 2.0 or greater than 12.5 or which corrodes steel at a rate greater than 6 mm per year is regulated as a corrosive waste. Wastes in this category include many acids and bases. The following are examples of corrosive wastes: sulfuric acid, ammonium hydroxide, nitric acid, sodium hydroxide, and hydrofluoric acid.
3. Reactive Any waste that is shock-sensitive, violently unstable, reacts violently with air or water, or generates cyanide or sulfide gases is regulated as a reactive waste. Some common chemicals which are classified reactive are: picric acid and other polynitroaromatics, old ethers and other peroxide forming organics, organic peroxides, ammonium perchlorate and metal perchlorate, and metal amides and azides.
4. Toxic – Any waste, which equals or exceeds a designated concentration of certain toxic compounds, is regulated as a characteristically toxic hazardous waste. The test to determine these concentrations is known as the TCLP (Toxicity Characteristic Leaching Procedure). It determines the amount of the toxic compound that leaches from the waste, simulating what could leach into the environment from an improperly disposed waste. The extraction procedure is a standardized laboratory test that requires specialized equipment. Therefore wastes with any of the TCLP compounds are assumed to be toxic. These compounds include the heavy metals such as lead, chromium, and barium as well as many organic materials and a group of pesticides. Some commercial products may exhibit the characteristic of toxicity through the TCLP testing procedure.
A selected group of eight (8) heavy metals,
ten (10) pesticides, and twenty-two
(22) organic
chemicals are classified as hazardous due to their toxicity characteristic.
Any detectable amount of these
chemicals must be identified on a hazardous waste
label
Many chemicals are not considered hazardous waste using the "Listed Waste" or "Characteristic Waste" criteria described above. However, these chemicals may be at least moderately toxic, moderately corrosive or combustible and should be collected by the Environmental Health and Safety to ensure safe handling and disposal. No chemical or chemical mixture should be poured down the drain or thrown in the trash unless the user is sure that the material is inert or innocuous and has first obtained approval for the disposal from the Environmental Health and Safety.
Materials with strong odor must not be disposed of via the sewer but should be maintained in sealed containers and collected by the Environmental Health and Safety. Only solids that are inert or innocuous may be disposed of in the trash. Any containers placed in the trash must have all labels completely defaced. If the containers are damaged and are likely to break during trash collection, they should be boxed to protect custodians and labeled as trash. The determination on whether a material is inert or innocuous should be verified by consulting the material safety data sheet, container label or a reference guide. The Environmental Health and Safety will dispose of other non-regulated materials via the sewer or trash after careful review. This will allow the University to ensure compliance with the stringent sewer regulations, as well as the landfill.
C. Listed Hazardous Wastes
The EPA has published four lists identifying
hazardous wastes. Appendix B is a composite of approximately 850 chemicals that
are recognized by the EPA and EH&S to be hazardous.
Acute hazardous wastes, also called P-listed
wastes, comprise a portion of appendix B. A
container that once held a P-listed waste must be triple
rinsed before the container can be
discarded. The rinsate
cannot be put down the sink.
III. LABELING REQUIREMENTS
All hazardous waste containers must
be labeled correctly. One of the most important aspects of the hazardous waste
management process is proper labeling of waste containers. Containers with
missing or illegible labels are classified as "unknowns." Unknown
chemicals requiring disposal place an unnecessary and costly burden on the
University. Testing of the chemical must be performed in order to determine the
appropriate hazard category of the unknown waste. Therefore, all containers
holding hazardous waste must be properly labeled.
Any
container with a label that is not secure or is becoming illegible must be
relabeled.
Waste
chemicals that are in their original containers require only the words “hazardous
waste” above the chemical name. All containers used for commingling of waste
must be labeled with the words "hazardous waste" and an
identification of the contents. A preprinted tag or other label acceptable to
the Hazardous Waste Coordinator is recommended. All labels must include an
identification of the chemicals/products placed into the container. An estimate
of the quantity of the each individual chemical is also recommended, particularly
when mixtures of various chemicals are added. This process should occur
at the time the chemicals/products are placed into the waste container.
Additional tags/labels may be needed if numerous compatible wastes are placed
into one container.
WASTE LABELING OPTIONS
OPTION A: Original Container
1. If a chemical is to be discarded in the original container, print “HAZARDOUS WASTE” on the label in large easily recognized letters.
2. Attach a completed EHS Chemical Waste Tag. Tags are available from EHS.
OPTION B: Container other than original container
1. If a chemical is placed in something other than the original container, mark “XXX” through the label.
2. Attach a completed EHS Chemical Waste Tag.
OPTION C: Chemically contaminated solid waste
1. Obtain a 6-quart plastic pail.
2. Line the pail with a clear plastic bag.
3. When bag is full, close bag with tape. Complete and attach an EHS Chemical Waste Tag.
NOTE: NEVER USE BLACK PLASTIC OR BIO-HAZARD BAGS TO COLLECT CHEMICAL WASTE.
OPTION D: Solvents
1. Solvents must be collected in containers identical to the original.
2. Complete and attach an EHS Chemical Waste Tag to the container. Each time you add waste to the container, note this on the waste tag. Please use pencil as ink will smudge.
3. Fill container to no more than 3/4 full. DO NOT OVERFILL!
4. Chlorinated solvents must be collected separately whenever possible!!
5. Absolutely no mercury or other heavy metals are to be mixed with solvent waste.
6. Store waste solvents away from foot traffic,
heat and potential sources of ignition.
IV. ACCUMULATION REQUIREMENTS
It is the responsibility of the Principal
Investigator (PI) and his/her designee to insure that waste accumulation areas
are maintained in accordance with applicable rules and regulations. Waste can
be accumulated in areas classified as “satellite accumulation areas.” A Waste Satellite Accumulation Area
Requirements sheet (Appendix
C) must be posted close to the accumulated waste. The PI must designate a Lab
Waste Manager to ensure that the waste is being handled correctly on a
day-to-day basis. The PI must also ensure that everyone in the lab has read and
is familiar with the Waste
Satellite Accumulation Area Requirements sheet and the Chemical
Waste Management Guide.
Hazardous waste at a satellite accumulation
area can be accumulated as long as needed, but the quantity of all wastes can
never exceed 55 gallons, or 1 quart of an acutely hazardous waste (P-Listed
Waste). Empty containers that once contained a P-listed waste must be triple rinsed and the rinsate must
be handled as a hazardous waste. An alternative would be to have EH&S handle the unrinsed empty
containers along with other chemical wastes. P-listed wastes are identified in
Appendix B with an asterisk.
All waste containers must have at least one
(1) inch of headspace to allow for expansion. The exterior of the container
must be free of chemical contamination. Leaking containers must be repackaged
before they are transported.
All waste containers must be labeled before
any waste is put in the container. Refer to section III on labeling waste
containers and unused products.
Incompatible chemicals are not to be placed
in the same container. The Lab Safety Manual provides a list of incompatible
chemicals. When placing a chemical into the waste container, consider venting
to prevent any abnormal reactions or possible expansions.
A spill kit must be accessible to all lab
personnel. The spill absorbent or neutralizer must be appropriate for the
spilled chemical.
V. WASTE SEGREGATION
Due to the waste management methods and
contracts LHU currently uses to dispose of chemical waste, the following waste
streams should be kept separate when possible.
Flammable
Liquids
Acids
Bases
Oxidizers
Halogenated
Organic Compounds
Non-halogenated
Organic Compounds
Oils
Air
Reactive Materials
Water
Reactive Materials
Mercury & Mercury Compounds
Ethidium Bromide
Formalin/Formaldehyde
Chromerge
Photographic
Waste
Aqueous Solutions.
VI. CONTAINER COMPATIBILITY
It is vital that chemical waste be compatible
with its container. If the waste is placed in an
inappropriate container, the container might disintegrate
or rupture.
The following chemical wastes must be placed
in glass containers.
amyl
chloride
aniline
benzyl
alcohol
bromine
bromobenzene
bromoform
butadiene
butyric
acid
carbon
disulfide
cedarwood oil
chlorinated
solvents
concentrated
acids
cinnamon
oil
cresol
cyclohexane
o-dichlorobenzene
p-dichlorobenzene
diethyl
benzene
diethyl
ether
ether
ethyl
chloride, liquid
nitrobenzene
perchloroethylene
phenol
/ chloroform mixtures
nitric
acid
thionyl chloride
toluene
trichloroethene
trichloroethylene
vinylidene chloride
xylene
brominated & fluorinated solvent
You can get more comprehensive information about chemical waste disposal from the Environmental Health and Safety Office.
SPECIAL WASTES
Certain wastes generated at the University
have special handling or labeling requirements. Examples are:
A. Unknowns - Special effort should be exercised to
prevent the generation of unknown wastes, since characterization of unknown
wastes significantly increases the cost for of disposal. To have unknowns
picked-up, place a Hazardous
Waste label on the container
with the word “Unknown”
in the constituents
column, then add the unknown to your Chemical
Pick-up Request form.
B. Gas Cylinders - generators should attempt to establish
accounts with suppliers who will allow the return of unused product and empty
cylinders. Matheson and PCR will take back most cylinders while other
manufacturers may not. EH&S will pick up Matheson lecture bottles and
Aldrich Sure Seal cylinders, provided the cylinders are in good condition. If
possible, the entire contents of the cylinder should be used up. Generators
must ensure that aging cylinders are picked up by EH&S before the integrity
of the valve and cylinder is compromised. The department may be billed directly
for cylinders that require special handling and disposal procedures such as
unknown or old cylinders.
C. Peroxide Formers - must be picked up by EH&S within six
(6) months after date of opening or one (1) year after date of receipt. Common
peroxide formers are ethyl ether, ethylene glycol dimethyl
ether (glyme), vinyl ethers, isopropyl ether, potassium metal and sodium amide.
D. Ethidium
bromide – Concentrated stock
solutions must be handled by EH&S as a hazardous laboratory waste. The rinsate and destained gels can be
placed down the sink and into the trash. EH&S will provide a 5 gallon
bucket for the gels to be handled as a hazardous laboratory waste. Researchers
concerned about discarding gels or solutions with lower or questionable amounts
can have them handled as a hazardous laboratory waste. If a lab chooses to
decontaminate their ethidium bromide, the filter
and/or resin beads must be handled by EH&S
E. Reagents – The following reagents contain mercury and
should be handled as hazardous waste:
Dobbin’s Reagent
Millon’s Reagent
Hayem’s Solution
Morell’s Solution
Hopkins-Cole
Reagent
Nessler’s Reagent
Hubb’s Reagent
Rohrbach’s Solution
Tyrosine
Reagents
Jacquemart’s Reagent
Sachsse’s Solution
Knapp’s
Solution
Spiegler’s Reagent
Mercresin
Tanret’s Reagent
Meyer’s
Solution.
Other hazardous reagents include: Flemming’s Solution (osmium, chromic acid), Folin-Dennis Solution (mercuric cyanide), Fisher’s Reagent
(phenyl hydrazine), and Erlicki’s
Solution (chromium).
F. Dinitro
and trinitro compounds - these compounds must be picked up by
EH&S before the contents have dried. Some are
potentially shock sensitive when the moisture content is less than 10%. Picric
acid is a common example of this type of compound.
G. Photochemical - EH&S
recommends that labs which use large quantities of photo chemicals have a
silver recovery unit installed. This unit treats the fixer so that it may be
discharged down the drain. If a silver recovery unit is not used, EH&S must
handle the fixer. No concentrated photo chemicals of any kind can be placed in
the trash or sink.
H. Spilled Materials - the spilled chemical and the absorbent must
be packaged and handled as hazardous waste. The Hazardous Waste label and the Chemical Waste Pickup Request form must name the chemical(s) and the
absorbent used. See section IX of this document for more details on spills.
I. Used Oil – All vacuum pump oil, synthetic oil,
transmission and brake fluids, lubricating greases, etc., must have the words
“used oil” on the container.
J. Batteries – Alkaline batteries can be disposed of in
the trash. Car batteries should be taken to the Central Recycling Facility. Other batteries which contain hazardous metals such as mercury,
lead, silver and cadmium must be handled by EH&S.
K. Light bulbs - fluorescent and high-intensity discharge
(HID) bulbs must be handled by EH&S.
L. Mercury Containing Devices – Many types of equipment contain elemental
mercury.
Equipment must be free of mercury devices
before it is recycled or discarded.
Examples include:
Heating and air conditioning thermostats
Tilt switches used in silent light switches,
washing machine lids, chest type freezers
Pressure gauges, displacement/plunger relays
Flow meters
Sump pump float switches
Thermometers, manometers
Mercury containing devices must be
disposed/recycled by EH&S.
VIII. SPILL CLEAN-UP
PROCEDURES
If there is an immediate danger to life or
property, EH&S and emergency personnel should be contacted immediately. For
spills where there is a health risk involved in cleaning up the spill, evacuate
the lab and call EH&S at 893-4428. Spills that occur after normal working
hours should be reported to Law Enforcement, representative will contact
EH&S if necessary.
Each laboratory should have a spill kit.
Small chemical spills must be contained and cleaned up immediately. All flames
should be extinguished and spark-producing equipment turned off. Non-essential
personnel should be evacuated.
After cleaning up the spill, place the
chemical and absorbent in a container with a Hazardous Waste label on it. A Chemical
Waste Pickup Request form
should be submitted, as in other waste disposal. Ensure that the Hazardous Waste label identifies the absorbent and the
chemical(s).
IX. WASTE MINIMIZATION
Waste minimization is any action that reduces
the amount and/or toxicity of chemical wastes that must be shipped off-site for
disposal as hazardous waste. The success of any waste minimization program is
dependent on the conscientious participation of every individual at
Source Reduction:
The most desirable method of waste
minimization is source reduction. This is any activity that reduces or
eliminates the generation of chemical hazardous waste at the source. Good
materials management, substitution of less hazardous materials, and good
laboratory procedures, can accomplish this. Examples include:
Implement
a waste minimization policy and train all employees and students.
Re-evaluate
procedures to see if a less hazardous or non-hazardous reagent could be used.
Centralize purchasing of chemicals through
one person in the department or laboratory.
Date
chemical containers when received so that older ones will be used first.
Keep
MSDS’s for chemicals on file.
Inventory
chemicals and identify their location at least once a year.
Update inventory when chemicals are purchased
or used up.
Purchase
chemicals in the smallest quantities needed.
Label all chemical containers to prevent the
generation of unknowns.
When
considering a new procedure, obtain the chemicals needed from another lab or
purchase small quantities initially.
Consider the use of micro scale experiments.
Consider the use of demonstrations or video
presentations as a substitute for some student experiments that generate
chemical wastes.
Consider
the use pre-weighed or pre-measured reagent packets where waste generation is high.
Avoid the use of reagents containing arsenic,
barium, cadmium, chromium, lead, mercury, selenium and silver.
Eliminate the use of chromic acid cleaning
solutions altogether. Use
non-hazardous solutions such as Alconox and Pierce
RBS35.
Substitute
red liquid (spirit-filled), digital, or thermocouple thermometers for mercury
thermometers when it is feasible.
Consider using detergent and hot water for
cleaning parts instead of solvents.
Use latex-based paints, which are typically
non-hazardous. Excess
latex paints should be recycled. Excess non-latex paints must be handled by
EH&S as a hazardous waste.
Utilize
vendors that will recycle used antifreeze. Some vendors will recycle the
antifreeze on site so the antifreeze never leaves the site.
Recycling:
The second most desirable approach is
recycling. When a waste material is used for another purpose, treated and
reused in the same process, or reclaimed for another process, it is considered recycling.
Examples include
When
solvent is used for cleaning purposes, use contaminated solvent for initial
cleaning and fresh solvent for final cleaning.
Purchase
compressed gas cylinders (including lecture bottles) only from manufacturers
who will accept empty cylinders.
Return excess pesticides to the distributor.
Have
a silver recovery unit installed in photography laboratories. The unit removes
the silver from the fixer solution.
Do
not contaminate used oil with solvents because this prevents the oil from being
recycled.
Increase solvent reuse through the use of
solvent distillation.
Recirculate unused or excess chemicals within the
department.
Collect
metallic mercury for reclamation
Treatment:
The least preferable technique is treatment.
The most common treatment is elementary
neutralization. Examples include:
Consider
the possibility of including detoxification and/or neutralization steps in lab
experiments.
De-stain
ethidium bromide gels so they can be disposed of in
the trash
Appendix A:
TOXICITY
CHARACTERISTICS
8 HEAVY METALS
ARSENIC
BARIUM
CADMIUM
CHROMIUM
LEAD
MERCURY
SELENIUM
SILVER
10 PESTICIDES
2,4-D
ENDRIN
HEPTACHLOR (AND ITS EPOXIDE)
HEXACHLOROBENZENE
HEXACHLOROBUTADIENE
HEXACHLOROETHANE
LINDANE
METHOXYCHLOR
TOXAPHENE
2,4,5-TP
(SILVEX)
22 ORGANIC CHEMICALS
BENZENE
CARBON TETRACHLORIDE
CHLORDANE
CHLOROBENZENE
CHLOROFORM
O-CRESOL
M-CRESOL
P-CRESOL
CRESOL
1,4-DICHLOROBENZENE
1,2-DICHLOROETHANE
1,1-DICHLOROETHYLENE
2,4-DINITROTOLUENE
METHYL ETHYL KETONE
NITROBENZENE
PENTRACHLOROPHENOL
PYRIDINE
TETRACHLOROETHYLENE
TRICHLOROETHYLENE
2,4,5-TRICHLOROPHENOL
2,4,6-TRICHLOROPHENOL
VINYL
CHLORIDE.
Appendix C:
WASTE
SATELLITE ACCUMULATION
AREA
REQUIREMENTS
1. Do not accumulate more than 55 gallons of waste or
1 quart of a P-Listed waste. P-Listed wastes are identified in the “Chemical
Waste Management Guide” in Appendix B.
2. Do not put hazardous chemical waste into sinks,
drains, or the trash. Also, do not allow the chemical waste to evaporate in the
fume hood.
3. Hazardous chemical waste containers must have the
yellow Hazardous Waste label on them. The label must list all constituents and the
percentages of each with the total equaling 100%. No abbreviations are allowed
on the label. The labels are available at no charge by calling EH&S at 893-4428.
Hazardous waste labels are not necessary on containers holding pure, unused
product as long as the original label is legible. Simply place these containers
in the waste accumulation area and include them on the pick-up request form.
4. All chemical wastes shall be accumulated in
sealable containers.
5. Containers shall be kept closed during
accumulation except when adding waste to a container. A funnel CANNOT be left in the container.
6. Do not overfill chemical waste containers. One
inch (1”) of air space from the top is required to allow for expansion. The
exterior of the container must be free of chemical contamination. Leaking
containers will not be collected by EH&S.
7. Keep solids and liquids separate. Separate the
following classes of chemical waste from each other: acids, bases, halogenated,
non-halogenated, oxidizers, reactives.
8. Date and dispose of peroxide-formers within six
months after date of opening or
one year after date of receipt.
9. Designate a Lab Waste Manager. This designated
person is responsible for
making sure that the waste is accumulated properly in
his/her own lab.
11. Keep a spill kit within easy access for all lab
personnel.
LAB WASTE MANAGER: _____________________________