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1/05
School Safety Training
Lab Safety
WAC 296-62-Part Q
2
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.
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Goals
Chemical hygiene, chemical hazards, and ventilation
Minimizing exposure and emergencies Quiz
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Principles of Chemical Hygiene
Minimize chemical exposures Never underestimate risk Work with adequate
ventilation hood Observe chemical exposure
limits Follow your Chemical
Hygiene Plan
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Chemical Hygiene Plan
Standard operating procedures Monitoring worker exposure Procedures for reducing exposure Maintenance and inspection procedures Employee training Medical consultation program Emergency procedures
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MSDS and Labels
Name and manufacturer Hazardous ingredients Chemical characteristics Physical and health hazards First aid Protective equipment Storage and handling Spills and disposal
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Physical Hazards
Flammability Explosive Corrosive Reactivity Stability
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Symptoms of Overexposure
Short-term health effects•Dizziness or nausea•Headache•Skin rashes or burns
Long-term health effects• Internal organ damage•Cancer
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Monitoring Exposure
Measure exposure when safe levels might be exceeded
PEL TLV Notify employees within 15 days
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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
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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
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Goals
Chemical hygiene, chemical hazards, and ventilation
Minimizing exposure and emergencies Quiz
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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
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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
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Other Lab Hazards
Improper handling of lab glassware
Hot equipment—autoclaves Open flames Moving equipment—
centrifuges Compressed gas cylinders
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PPE
Glasses, goggles, or face-shields
Gloves Footwear Respirators Other skin protection
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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
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Chemical Waste Disposal
Never pour chemicals down the drain
Never mix chemicals with regular trash
Designate a waste collection area
Segregate waste Label containers
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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
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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
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First-Aid Information
Eyes: Flush with water Skin: Wash with soap and
water Inhalation: Move to fresh
air Swallowing: Get
emergency medical assistance
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Medical Program
Regular medical surveillance
Signs, symptoms of exposure
First-aid trained personnel available
Emergency room located nearby
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Spill Control
Prevention Containment Cleanup Reporting
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Emergency Equipment
Drench-type safety shower
Eyewash station Fire extinguisher Fire alarm Phone for emergency
use First-aid kit
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Emergency Plan
Ventilation failure Evacuation Medical care Emergency reporting Drills Alarm system alerts
all people
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Goals
Chemical hygiene, chemical hazards, and ventilation
Minimizing exposure and emergencies Quiz
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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
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Quiz
1. One of the primary principles of chemical hygiene is to minimize _______________________________.
2. Chronic or short-term health effects might include dizziness, headache, or skin irritation. T or F
3. What should be checked on a lab hood to make sure it is working properly?
4. To contain any small spills, work with chemicals only on absorbent pads or in _______________.
5. Always wash hands before eating lunch in the lab. True or False True or False
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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 preventiontechnique.
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Quiz Answers
1. Minimize chemical exposure
2. False, “acute,” not “chronic,” is the term used to describe short-term health effects.
3. Pressure gauge
4. Spill trays or drip pans
5. False, never eat lunch in the lab or near chemical storage areas. Always wash before leaving the lab to eat lunch.
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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
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