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.

3

Goals

Chemical hygiene, chemical hazards, and ventilation

Minimizing exposure and emergencies Quiz

4

Principles of Chemical Hygiene

Minimize chemical exposures Never underestimate risk Work with adequate

ventilation hood Observe chemical exposure

limits Follow your Chemical

Hygiene Plan

5

Chemical Hygiene Plan

Standard operating procedures Monitoring worker exposure Procedures for reducing exposure Maintenance and inspection procedures Employee training Medical consultation program Emergency procedures

6

MSDS and Labels

Name and manufacturer Hazardous ingredients Chemical characteristics Physical and health hazards First aid Protective equipment Storage and handling Spills and disposal

7

Physical Hazards

Flammability Explosive Corrosive Reactivity Stability

8

Symptoms of Overexposure

Short-term health effects•Dizziness or nausea•Headache•Skin rashes or burns

Long-term health effects• Internal organ damage•Cancer

9

Monitoring Exposure

Measure exposure when safe levels might be exceeded

PEL TLV Notify employees within 15 days

10

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

11

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

12

Goals

Chemical hygiene, chemical hazards, and ventilation

Minimizing exposure and emergencies Quiz

13

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

14

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

15

Other Lab Hazards

Improper handling of lab glassware

Hot equipment—autoclaves Open flames Moving equipment—

centrifuges Compressed gas cylinders

16

PPE

Glasses, goggles, or face-shields

Gloves Footwear Respirators Other skin protection

17

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

18

Chemical Waste Disposal

Never pour chemicals down the drain

Never mix chemicals with regular trash

Designate a waste collection area

Segregate waste Label containers

19

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

20

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

21

First-Aid Information

Eyes: Flush with water Skin: Wash with soap and

water Inhalation: Move to fresh

air Swallowing: Get

emergency medical assistance

22

Medical Program

Regular medical surveillance

Signs, symptoms of exposure

First-aid trained personnel available

Emergency room located nearby

23

Spill Control

Prevention Containment Cleanup Reporting

24

Emergency Equipment

Drench-type safety shower

Eyewash station Fire extinguisher Fire alarm Phone for emergency

use First-aid kit

25

Emergency Plan

Ventilation failure Evacuation Medical care Emergency reporting Drills Alarm system alerts

all people

26

Goals

Chemical hygiene, chemical hazards, and ventilation

Minimizing exposure and emergencies Quiz

27

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

28

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

29

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.

30

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.

31

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