science safety in texas public schools developed by charles a. dana center the university of texas...
TRANSCRIPT
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Science Safety in Texas Public Schools
developed by
Charles A. Dana Center
The University of Texas at Austin
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“The accident rate in schools is 10–50 times that of the chemical industry”.
NSTA, Guide to School Facilities, 1999
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School Chemistry Labs—scene of some frightening accidents—expose lack of safety oversight
“In a blinding flash, the routine high school chemistry experiment turned to chaos.
An alcohol-fueled fireball shot into the classroom, searing the skin of three junior honor students in the front row.”
Tammy Webber, Associated Press, 2002
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If an accident occurs in a laboratory
• How should you respond if a student is injured?• Who notifies the principal?• Who alerts the school nurse?• Do you include custodial staff?• Who notifies the parents?• Who supervises the other students?• What happens if you are injured?
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After the accident is over
• Were the safety procedures reviewed?• Did you have the safety equipment to
respond appropriately?• Did you have proper first-aid training to
respond appropriately?• Were accident reports completed and filed?• Were steps taken to prevent similar
accidents?
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Emergency Response System
• Establish an emergency response team
• Who should serve on the team?
• What are the team’s responsibilities?
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Science Facility and Safety Equipment Checklist
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Place a (√ )in the box if the item is appropriate for your grade level.
Place an (x) in the box if the item is not appropriate for your grade level.
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• How could the teacher respond?
• What safety equipment was needed?
• What were the safety measures before the accident?
• What should happen after the accident?
• Could the accident have been prevented?
• Could you respond appropriately if this happened in your room?
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Whats-Sa-Matta Laboratory
Identify the safety violations in this laboratory setting.
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Science Facilities Standards
What are safe science facilities?
What tools are available to plan and design good facilities?
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www.sciencetekstoolkit.org
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Hazard Communications Act
Requirements in the Law
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Comprehensive HAZCOM Program
• Informing employees of workplace hazards
• Labeling chemical containers• Reading and understanding MSDS• Training for employees
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Reading and Understanding
Chemical Labels
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Primary Container Label
• Name of material—solution concentration
• Name of components and mixture concentrations
• Appropriate warning signage
• Potential hazards
• Immediate first aid measures
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Temporary Container Labels
• Name of chemical
• Appropriate hazard warnings
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Hazard Rating
Identity of ChemicalChemical Abstract NumberFormula WeightHazard Class & Packing NumberSpecificationsPersonal Protection Information
Date Received
Hazard Warning
24-Hour NumberManufacturer or DistributorFirst Aid
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Material Safety Data Sheets
Interpreting and Understanding Information on a MSDS
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MSDS must:
• accompany chemicals
• conform to OSHA standards
• be maintained by school
• be written or electronic copies
• replaced within 30 days
• be readily available on request
The school district shall not permit use of chemical if it does not have an MSDS.
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Material Safety Data Sheet (MSDS)
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Silver Nitrate MSDS
*HMIS (Hazardous Materials Industrial Standards)
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Silver Nitrate MSDS
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Silver Nitrate MSDS
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Silver Nitrate MSDS
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Silver Nitrate MSDS
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Silver Nitrate MSDS
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Silver Nitrate MSDS
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Silver Nitrate MSDS
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Silver Nitrate MSDS
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Online MSDS Resources
www.freyscientific.com
www.sargentwelch.com
www.flinnsci.com
www.fisheredu.com
www.msdsprovider.net
www.camd.lsu.edu/msds_search.html
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National Fire Protection National Fire Protection Association (NFPA)Association (NFPA)
Hazard Rating Diamond
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Flammability Hazard
Health Hazard ReactivityHazard
Special Hazard
NFPA Diamond
Hazard Rating4 Severe5 Serious6 Dangerous7 Minor0 Slight
30 1OX
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Flammability Rating “3”
• rapidly vaporizes at normal temperature and pressure
• rapidly disperses into air• burns readily
3 Includes:
• very flammable gases• extremely volatile liquids• dust that readily burns• dust that explodes in air
Serious Flammability Hazard Rating
30
OX1
NFPA NFPA Flammability RatingFlammability Rating
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30
OX1
Slight Health Hazard Rating
• Health Rating “0”
• exposure under fire conditions offer no hazard beyond that of combustible material
0
NFPA Health RatingNFPA Health Rating
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• Reactivity Rating “1”
• materials must be preheated before ignition can occur• includes most ordinary combustible materials
30
OX1
Minor Reactivity Hazard Rating
1
NFPA Reactivity RatingNFPA Reactivity Rating
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30
OX1
Special Hazard Rating
OX
NFPA Special RatingNFPA Special Rating
Special Hazard Rating “OX”
• materials, on exposure under fire conditions, would offer no hazard beyond that of combustible material
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What does this NFPA Diamond mean?
32
W4
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James W. Collins
Charles A. Dana Center
The University of Texas at Austin
2901 North IH-35
Austin, TX 78722
(512) 232-6002