School Safety Training
Lab Safety
WAC 296-62-Part Q
1/05
Notice
 This presentation is provided to all Educational Service




District 101 (ESD 101) schools at no cost.
This presentation contains copyrighted materials purchased
by ESD 101 for the exclusive use of training school personnel
within ESD 101.
This presentation may not be reproduced except to print
“handouts” or “notes pages” for use during training within
ESD 101 school districts.
If the school district does not have Microsoft’s PowerPoint
software available, a PowerPoint viewer can be downloaded
from the internet at no cost.
Questions may be directed to the ESD 101 Risk Manager.
2
Goals



Chemical hygiene, chemical hazards,
and ventilation
Minimizing exposure and emergencies
Quiz
3
Principles of
Chemical Hygiene





Minimize chemical exposures
Never underestimate risk
Work with adequate
ventilation hood
Observe chemical exposure
limits
Follow your Chemical
Hygiene Plan
4
Chemical Hygiene Plan







Standard operating procedures
Monitoring worker exposure
Procedures for reducing exposure
Maintenance and inspection procedures
Employee training
Medical consultation program
Emergency procedures
5
MSDS and Labels








Name and manufacturer
Hazardous ingredients
Chemical characteristics
Physical and health hazards
First aid
Protective equipment
Storage and handling
Spills and disposal
6
Physical Hazards





Flammability
Explosive
Corrosive
Reactivity
Stability
7
Symptoms of Overexposure

Short-term health effects

Long-term health effects
• Dizziness or nausea
• Headache
• Skin rashes or burns
• Internal organ damage
• Cancer
8
Monitoring Exposure




Measure exposure when safe
levels might be exceeded
PEL
TLV
Notify employees within 15 days
9
General Lab Ventilation




Lab air is continually
replaced
Prevents build-up of toxic
substances
Does not protect teachers
or students from release of
toxic substances
Quantity and quality of
ventilation
is monitored
10
Lab Hoods Should:





Be used for operations that could release
toxic vapors or dust
Have a continuous monitoring device
Not store items that could block air flow
Be on when storing toxic chemicals
Be closed when not in use
11
Goals



Chemical hygiene, chemical hazards,
and ventilation
Minimizing exposure and emergencies
Quiz
12
Basic Hygiene Practices





Do not smell or taste chemicals
Do not eat or drink near chemicals
Do not store food in chemical storage
refrigerators
Do not use lab equipment to handle food
Do not chew gum, smoke, or apply
cosmetics near chemicals
13
More Hygiene Practices





Wash exposed skin
before leaving the lab
No horseplay
Confine long hair and
loose clothing
Do not wear contact
lenses
Do not work alone if
procedures are
hazardous
14
Other Lab Hazards





Improper handling of lab
glassware
Hot equipment—autoclaves
Open flames
Moving equipment—
centrifuges
Compressed gas cylinders
15
PPE





Glasses, goggles, or
face-shields
Gloves
Footwear
Respirators
Other skin protection
16
Chemical Storage
 Know handling, storage, and





disposal procedures
All containers must be labeled
Keep toxic substances segregated
Use local exhaust for storage areas
Avoid exposure to heat or sunlight
Inspect stored chemicals regularly
17
Chemical Waste Disposal





Never pour chemicals down
the drain
Never mix chemicals with
regular trash
Designate a waste
collection area
Segregate waste
Label containers
18
Housekeeping
 Keep work surfaces and hoods clean and


uncluttered
Clean floors regularly
Keep access to the following clear at all times:
• Stairways and hallways
• Exits
• Emergency equipment
• Utility controls
• Telephone for emergency reporting
19
Inspections



Conduct regular lab inspections
Document when issues are corrected
Include the following areas:
• Eyewash stations and safety showers
• Chemical storage areas
• Exits
• Electrical equipment
• Compressed gas cylinders
20
First-Aid Information




Eyes: Flush with water
Skin: Wash with soap and
water
Inhalation: Move to fresh
air
Swallowing: Get
emergency medical
assistance
21
Medical Program




Regular medical
surveillance
Signs, symptoms
of exposure
First-aid trained
personnel
available
Emergency room
located nearby
22
Spill Control




Prevention
Containment
Cleanup
Reporting
23
Emergency Equipment






Drench-type safety
shower
Eyewash station
Fire extinguisher
Fire alarm
Phone for emergency
use
First-aid kit
24
Emergency Plan






Ventilation failure
Evacuation
Medical care
Emergency reporting
Drills
Alarm system alerts
all people
25
Goals



Chemical hygiene, chemical hazards,
and ventilation
Minimizing exposure and emergencies
Quiz
26
Summary







Know the physical and health hazards
of chemicals
Use ventilation equipment
Store and handle chemicals safely
Wear protective clothing
Follow spill control practices
Utilize good hygiene practices
Teach these principles to your students
27
Quiz
1.
2.
3.
4.
5.
One of the primary principles of chemical hygiene
is to minimize _______________________________.
Chronic or short-term health effects might include
dizziness, headache, or skin irritation. T or F
What should be checked on a lab hood to
make sure it is working properly?
To contain any small spills, work with chemicals
only on absorbent pads or in _______________.
Always wash hands before eating lunch in the lab.
True or False
True or False
28
Quiz (cont.)
6.
Describe at least two items that should be
inspected regularly.
7. All chemical containers must have a _________.
8. What will workers need to wear if ventilation does
not keep employee exposure below the
OSHA/WISHA PEL?
9. Besides chemicals, discuss another laboratory
hazard.
10.Discuss at least one important spill prevention
technique.
29
Quiz Answers
1.
2.
3.
4.
5.
Minimize chemical exposure
False, “acute,” not “chronic,” is the term used to
describe short-term health effects.
Pressure gauge
Spill trays or drip pans
False, never eat lunch in the lab or near chemical
storage areas. Always wash before leaving the lab
to eat lunch.
30
Quiz Answers (cont.)
6.
Eyewash station, emergency shower, exits,
gas cylinders, chemical storage areas
7. Label
8. Respirators are required if workers are exposed
to chemicals above the PEL.
9. Hot equipment, moving equipment, gas cylinders,
broken glassware
10.Store chemicals in unbreakable containers, keep
containers closed, transport on carts
31