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Safety Workshop June 16, 2008. Introduction. Safety: responsibility of the school board, district administration, teachers, parents, and students. Safety Eyewear. ANSI Z87.1-1989. Chemical Splash Goggles. Protective Spectacles. Protective Spectacles (for over prescription eyewear).

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safety workshop june 16 2008
Safety Workshop

June 16, 2008

introduction
Introduction
  • Safety: responsibility of the school board, district administration, teachers, parents, and students
safety eyewear
Safety Eyewear
  • ANSI Z87.1-1989

Chemical Splash Goggles

Protective Spectacles

Protective Spectacles

(for over prescription eyewear)

Face Shield

gloves
Gloves

Nitrile

Latex

slide5
MSDS
  • Hard copy for every chemical in lab
  • English
  • Other languages, if necessary
hoods
Hoods
  • Lab doors closed when using hood
  • Clean and clutter free
  • No chemical storage in hood
  • Open windows ≠ Hood
  • Sash completely closed when not in use
  • Controls outside hood
hoods continued
Hoods Continued…
  • Flow rate should between 60 and 120 ft/min. (Ideally 100 ft/min.)
  • Mark sash
  • Test annually
  • Properly discharge exhaust to prevent reentry
even more about hoods
Even More About Hoods…
  • Sash between face and experiment
  • Work 6 inches inside hood
  • Use a shield if possibility of explosion
  • Adequate illumination
  • Only necessary materials in the hood
  • Turn hood on before performing experiment
chemical storage
Chemical Storage
  • Flinn Catalog
  • Alphabetically only within categories
  • Wooden storage shelves with ¾ inch lip
  • No stacking chemical bottles
  • Bottles no more than 2 deep on shelf
chemical storage continued
Chemical Storage Continued…
  • Mark date received, date opened, and initials
  • No storage of more than 1 gallon of a liquid
  • No storage near, over, or under a sink
  • No storage above eye level
  • Secure storage areas
flammable storage cabinets
Flammable Storage Cabinets
  • No storage on top of flammables cabinets
other storage cabinets
Other Storage Cabinets
  • Store nitric acid in separate tub in acid cabinet
  • Corrosives and oxidizers in separate cabinet
    • e.g. Chlorates, chromates, nitrates, permanganates, persulfates
  • Store oxidizers 20 feet from flammables
gas storage
Gas Storage
  • Gases stored outside the classroom
    • NFPA 45: 8-1.2(96)
  • Store oxygen at least 20 feet from other flammable gasses
  • Strap tanks when used in

classroom

chemical inventory
Chemical Inventory
  • Annual inventory
  • Posted outside lab
  • Copy to local fire department
labeling secondary containers
Labeling Secondary Containers
  • Labels should contain the following:
    • Chemical name as on MSDS
    • Concentration
    • Date made
    • Initials
    • NFPA label
    • First aid information
    • Expiration or use by date
unsafe chemicals
Unsafe Chemicals?
  • Benzene
  • Lead?
  • Magnesium powder?
  • Mercury
  • Methylene chloride?
  • Perchloric acid
  • Silver nitrate?
  • Sodium chromate?
  • Sodium dichromate?
emergency procedures
Emergency Procedures
  • Post emergency numbers
    • 911
    • Poison control
    • Fire
    • Police
    • Hospital
  • Practice drills
  • Injuries
    • Administer first aid
    • Send to school nurse
    • File a report
egress
Egress
  • Two clearly marked exits
  • Posted floor plan with emergency escape route
  • Fire doors that open in the direction of the escape
electrical
Electrical
  • GFI (ground fault interrupt) plugs on lab benches
  • Multi outlet plugs with built-in circuit breaker
safety shower
Safety Shower
  • Monthly safety shower test
  • ANSI Z358.1-2004
eyewash
Eyewash
  • Weekly eyewash station test
  • Plumbed eyewash
  • Eyewash temperature 78-92˚F
  • ANSI Z358.1-2004
other safety equipment
Other Safety Equipment
  • Smoke detector
  • First aid kit
  • Log inspections and tests
  • Emergency gas shut off
fire equipment
Fire Equipment
  • Practice drop and roll
  • Must have safety shower
  • Should have a fire blanket
  • Class ABC fire extinguishers
  • Monthly check of fire extinguishers
spills
Spills
  • For a small spill:
    • Never clean up alone
    • Use a spill kit
  • For a large spill:
    • Evacuate
    • Call HazMat
    • Call 911
ventillation
Ventillation
  • 6 changes of air/hour in lab
  • Separate ventilation for prep and storage rooms
  • Hood ≠ room ventilation
  • Open windows ≠ room ventilation
waste storage
Waste Storage
  • Separate glass disposal container
    • Bag inside a box
  • Designated waste containers that

are segregated by compatibility

    • NFPA 45: 7-2.1
  • Store on wooden shelves with anti-roll lips, if possible
  • Bottles no more than ¾ full.
waste labeling
Waste Labeling
  • Waste labels must display:
    • The words “hazardous waste”
    • Contents with chemical names, not formulas
    • Approximate concentrations
    • Date started
    • Initials
waste disposal
Waste Disposal
  • Flinn
  • Waste pick-up every 6 months
  • Waste should NEVER be picked-up during school hours
overcrowding
Overcrowding
  • Room occupancy based on fire and safety codes
  • One teacher: up to 24 students
safe classroom
Safe Classroom
  • Post rules
  • Student safety contract
  • District-supplied safety training
  • District liability insurance
  • District review of science facilities and instruction every 3-5 years
  • Notify school officials about existing safety issues
  • Adopt chemical hygiene plan
chemical hygiene plan
Chemical Hygiene Plan
  • SOP for activities using hazardous chemicals
  • Control measures to reduce exposure
  • Hoods and safety equipment function properly
  • Information on hazardous chemicals (MSDS)
  • Training
  • Circumstances requiring administrative approval
  • Requirements for medical consultation
  • Designation of responsible personnel
  • Requirements for additional protection
  • Provisions for yearly re-evaluation
future plans
Future Plans
  • Emergency lighting
  • Anti-slip floor – NO carpet
  • Aisle widths at least 44 inches
  • No drawers that open into

narrow aisles

  • Doors should open into room,

not passageway

references
References
  • Fisher Scientific. Lab Safety Manual. 2007.
  • http://www.cdc.gov/niosh/docs/2007-107/pdfs/2007-107.pdf
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