| |
|
|
Biohazard (Examples) |
| High
Hazard |
Biosafety Levels 3
- Organisms that can cause serious
illness or death in healthy adults. Exposure by inhalation
is a risk from any sort of handling procedures or from
spills or contaminated waste. Infections also readily occur
from needle sticks or accidental contact with mucous
membranes such as eyes and mouth. Example: Mycobacterium
tuberculosis |
|
Moderate
Hazard |
Biosafety Level 2 - Organisms that can cause moderate to
serious illness in healthy adults. Infections seldom occur
via inhalation unless the organism is dispersed into the air
as an aerosol. Infections readily occur from needle sticks
or accidental contact with mucous membranes such as eyes and
mouth. Examples: Salmonella bacteria, hepatitis B. |
|
Low
Hazard |
Biosafety Level 1 - Microbiology lab using microorganisms
that do not cause disease in healthy adults. Example: E.
coli K12 bacteria, most yeast |
|
Not
Applicable |
No biohazard present at this location. |
| |
|
|
Carcinogens (Examples) |
| High
Hazard |
Routine use of larger quantities of carcinogenic
material where the risk of exposure is high because the
material can be absorbed through skin or inhaled. Examples:
embalming facility and use of aerosolized carcinogens (e.g.,
smoking / nicotine studies) |
| Moderate
Hazard |
Routine use of carcinogenic material in pure form.
Examples: acrylamide powder, acrolein, or diaminobenzidine
(DAB), or use of several liters per week of carcinogenic
solvents, such as phenol/chloroform extraction procedures.
|
| Low
Hazard |
Occasional use of small amounts or dilute solutions.
Example: Labs using small quantities of dilute
formaldehyde/water solutions to preserve specimens |
|
Not
Applicable |
No carcinogens present at this location |
| |
|
|
Chemical Storage |
| High
Hazard |
Chemical stockrooms, large quantities of hazardous
materials, including 55 gallon drums. Storage of significant
amounts of air or water reactive material, unstable or
incompatible chemicals, and/or compressed or liquefied
gases. |
| Moderate
Hazard |
Storage of hundreds of chemical containers. Minimal
amounts of air or water reactive material, unstable or
incompatible chemicals, or compressed or liquefied gases.
Example: chemical inventory of a standard research
laboratory. |
| Low
Hazard |
Storage of small quantities of chemicals. Storage where
the amount on hand would not cause a fire or serious health
hazard if it came into accidental contact with water. No
storage of poison inhalation hazards. Example: chemical
storage in a teaching lab. |
|
Not
Applicable |
No chemicals stored at this location. |
| |
|
|
Compressed Gases (Non-Flammable, Non-Poisonous)
(Examples) |
| High
Hazard |
Use of any compressed gases, including solidified or
liquefied gases, in small unventilated space. Example: Use
of liquid nitrogen or dry ice in a cold room or
environmental chamber. (Note: This applies to rooms/chambers
with re-circulating fans which do not supply fresh air.)
|
| Moderate
Hazard |
(1) Use of compressed gas with a low, well controlled
flow rate in a area with poor ventilation; or (2) Use of a
container or gas supply system that could cause the sudden
release of a large amount of gas. |
| Low
Hazard |
(1) Use where the release rate of the gas can be
controlled; and (2) The area is well ventilated and air is
not re-circulated. Example: Gas cylinder with regulator used
in a well ventilated laboratory where air is exhausted by
fume hoods that vent to the roof. |
|
Not
Applicable |
No compressed gases at this location. |
| |
|
|
Corrosives (Examples) |
| High
Hazard |
(1) Use and/or storage of large quantities (20 or more
gallons) of concentrated acids or bases; (2) Use or storage
of any volume of hydrofluoric acid; and (3) Benchtop use of
acid baths with acid concentrations of greater than 6 molar.
|
| Moderate
Hazard |
Use and/or storage of moderate quantities (1 to 20
gallons) of concentrated acids and bases. Example: standard
research laboratory |
| Low
Hazard |
Routine use of dilute acid and base solutions,
infrequent use of concentrated acids and bases (less than 1
gallon). Example: use of corrosives in teaching laboratories
|
|
Not
Applicable |
No corrosive materials at this location. |
| |
|
|
Explosives (Examples) and Peroxide Forming
Chemicals (Examples) |
| High
Hazard |
(1) Storage and/or use of any explosive materials in
pure or concentrated forms or use in procedures which may
produce harmful explosion; or (2) Use of peroxide forming
chemicals in a procedure which may produce a harmful
explosion Example: storage or use of dry picric acid;
refluxing diethyl ether which may concentrate peroxides
|
| Moderate
Hazard |
(1) Storage and/or use of any peroxide forming
chemicals; or (2) Work that involves amounts that can
produce a harmful explosion but use is limited to forms,
such as aqueous solutions, that are not explosive (e.g.,
Bouin’s fixative with picric acid) |
| Low
Hazard |
Work that involves small amounts that can not produce a
harmful explosion or use of the material in form that is not
explosive. Example: histology lab using picric acid solution
as a stain. |
|
Not
Applicable |
No explosive materials or peroxide forming chemicals at
this location. |
| |
|
| Flammable Gases
(Examples) |
| High
Hazard |
(1) The use and/or storage of any flammable gas
cylinders below ground; or (2) The use and/or storage of the
following:
- >8 total cubic feet of flammable, liquefied gas
- >10 total cubic feet of flammable, >300 PSIG,
non-liquefied, non-absorbed gas
- >30 total cubic feet of
flammable, ≤300 PSIG, non-liquefied, non-absorbed gas
|
| Moderate
Hazard |
Use and/or storage of ≥0.15 cubic feet of flammable gas
but less than the following:
- <8 total cubic feet of
flammable, liquefied gas
- <10 total cubic feet of
flammable, >300 PSIG, non-liquefied, non-absorbed gas
- <30
total cubic feet of flammable, ≤300 PSIG, non-liquefied,
non-absorbed gas
|
| Low
Hazard |
Use of small individual low-pressure containers (<0.15
cubic feet water container capacity of flammable gas) or
piped supply systems. Example: house-supplied natural gas or
aerosol can of spray paint with a flammable gas as a
propellant |
|
Not
Applicable |
No flammable gases at this location. |
| |
|
| Flammable Liquids (Examples) |
| High
Hazard |
(1) Routine use or storage of any extremely flammable
liquids {i.e., flashpoint <73F and boiling Point 95F}; or (2) Routine use or storage of large quantities
(greater than 30 gallons); or (3) Any work with flammable
liquids near an open flame or at elevated temperatures.
|
| Moderate
Hazard |
Routine use of flammable liquids in moderate quantities
not exceeding FDNY permitted quantities and away from
ignition sources. Example: Standard research lab. |
| Low
Hazard |
Daily use or storage of small quantities (less than 32
fluid ounces) of flammable liquids. Example: tissue culture
rooms using alcohol to wipe bench tops. |
|
Not
Applicable |
No flammable liquids at this location. |
| |
|
| Flammable Solids, Air Reactive,
and/or Pyrophoric
Chemicals (Examples) |
| High
Hazard |
Routine use or storage of large quantities of flammable
solids (>15 lbs) or air reactive/ pyrophoric materials (>12
lbs). |
| Moderate
Hazard |
Routine use or storage of moderate quantities of
flammable solids (1-15 lbs) or air reactive/ pyrophoric
materials (1-12 lbs). |
| Low
Hazard |
Infrequent use of small quantities (<1 lb) under
conditions known to be controllable. |
|
Not
Applicable |
No flammable solids / air reactives / pyrophorics at
this location. |
| |
|
| Ionizing Radiation |
| High Hazard |
Locations where an individual could receive a harmful
exposure to radiation unless appropriate precautions are
followed. Example: use of sealed sources that contain curie
amounts of radioactive material. |
| Moderate
Hazard |
Locations where an individual will not receive a harmful
exposure if basic precautions are followed. Example: use of
several millicuries of radioactive material that emit gamma
or high energy beta radiation that requires shielding.
|
| Low Hazard |
Locations where an individual could not receive a
harmful exposure to ionizing radiation under any
circumstances. Example: 1) laboratory where the total amount
of radioactive material is less than the annual limit of
intake for a radiation worker or 2) an X-ray diffraction
unit that is entirely enclosed by shielding. |
|
Not
Applicable |
No ionizing radiation at this location. |
| |
|
| Lasers |
| High
Hazard |
Class IV laser is in use. Viewing of the direct beam and
viewing of any type of reflection is likely to cause serious
eye injury. Beams can cause skin burns. Beams can cause
materials to burn and/or release hazardous materials to the
air. |
| Moderate
Hazard |
Class III laser is in use. Momentary viewing of the
direct beam, or a beam reflected from a mirror-like surface,
may produce serious eye injury. Beams may not be visible
|
| Low Hazard |
Only class I or II lasers are in use. Beams from class I
and II lasers are always visible. There is no risk of injury
unless an individual looks directly into the beam for an
extended period of time. Example: HeNe laser pointers used
in classrooms |
|
Not
Applicable |
No lasers at this location. |
| |
|
| Oxidizers
(Examples) |
| High
Hazard |
Routine use and storage of large quantities (>20 pounds)
of strong oxidizers. |
| Moderate
Hazard |
Routine use and storage of moderate quantities of
oxidizers not exceeding 20 pounds. Example: standard
research laboratory; chromic acid bath used to clean
glassware; or storage of concentrated bleach. |
| Low
Hazard |
Infrequent use of small quantities (less than 0.5 pounds
total). Example: use of 10% hydrogen peroxide in an
experiment |
|
Not
Applicable |
No oxidizers at this location. |
| |
|
| Poisonous/Toxic Liquids and Solids (Examples) |
|
High
Hazard |
Use and storage of highly toxic chemicals (LD50 < 50
mg/kg). |
|
Moderate
Hazard |
Use and storage of toxic chemicals LD50 between 50 to
500 mg/kg) OR less toxic compounds which can be absorbed
through the skin. |
|
Low
Hazard |
Use and storage of materials for which the lethal dose
is more than an ounce (LD50 more than 500 mg/kg) and that
are not readily absorbed through the skin. Examples: methyl
ethyl ketone, acetaldehyde, benzoic acid, methanol, hexane
|
|
Not
Applicable |
No poisonous liquids and solids at this location. |
| |
|
| Poisonous
Gases And Poison Inhalation Hazards (Examples) |
|
High
Hazard |
Any use or storage of a
gaseous poison inhalation hazard. |
|
Moderate
Hazard |
Any use or storage of a
liquid poison inhalation hazards. |
|
Not
Applicable |
No poisonous gases or
poison inhalation hazards at this location. |
| |
|
| Water Reactive
Chemicals (Examples) |
|
High
Hazard |
Use or storage of large
quantities (greater than 2 pounds) of water reactive
chemicals or their use in new or original procedures that do
not have a history of predictable results. |
|
Moderate
Hazard |
Routine use of small
quantities (less than 2 pounds) under conditions known to be
controllable. The amount on hand could cause a fire or
serious health hazard if it came into accidental contact
with water. |
|
Low
Hazard |
Infrequent use of small
quantities under conditions known to be controllable.
Storage where the amount on hand would not cause a fire or
serious health hazard if it came into accidental contact
with water. |
|
Not
Applicable |
No water reactive
chemicals at this location. |
| |
|
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