1/05 School Safety Training Lab Safety WAC 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 prevention technique.

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