tate
Uploaded by
33 SLIDES
495 VUES
330LIKES

Comprehensive Safety Guidelines for School Science Labs

DESCRIPTION

This document outlines essential safety protocols for science laboratories in educational settings. It emphasizes the shared responsibility for safety among school boards, administration, teachers, parents, and students. Key sections include proper use of safety eyewear, chemical storage, emergency procedures, waste disposal, and the operation of fume hoods. It provides detailed instructions on labeling hazardous materials and the need for regular safety checks and training. These guidelines aim to ensure a safe and compliant learning environment in science classrooms.

1 / 33

Télécharger la présentation

Comprehensive Safety Guidelines for School Science Labs

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Safety Workshop June 16, 2008

  2. Introduction • Safety: responsibility of the school board, district administration, teachers, parents, and students

  3. Safety Eyewear • ANSI Z87.1-1989 Chemical Splash Goggles Protective Spectacles Protective Spectacles (for over prescription eyewear) Face Shield

  4. Gloves Nitrile Latex

  5. MSDS • Hard copy for every chemical in lab • English • Other languages, if necessary

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. Flammable Storage Cabinets • No storage on top of flammables cabinets

  12. 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

  13. 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

  14. Chemical Inventory • Annual inventory • Posted outside lab • Copy to local fire department

  15. 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

  16. Unsafe Chemicals? • Benzene • Lead? • Magnesium powder? • Mercury • Methylene chloride? • Perchloric acid • Silver nitrate? • Sodium chromate? • Sodium dichromate?

  17. Emergency Procedures • Post emergency numbers • 911 • Poison control • Fire • Police • Hospital • Practice drills • Injuries • Administer first aid • Send to school nurse • File a report

  18. Egress • Two clearly marked exits • Posted floor plan with emergency escape route • Fire doors that open in the direction of the escape

  19. Electrical • GFI (ground fault interrupt) plugs on lab benches • Multi outlet plugs with built-in circuit breaker

  20. Safety Shower • Monthly safety shower test • ANSI Z358.1-2004

  21. Eyewash • Weekly eyewash station test • Plumbed eyewash • Eyewash temperature 78-92˚F • ANSI Z358.1-2004

  22. Other Safety Equipment • Smoke detector • First aid kit • Log inspections and tests • Emergency gas shut off

  23. Fire Equipment • Practice drop and roll • Must have safety shower • Should have a fire blanket • Class ABC fire extinguishers • Monthly check of fire extinguishers

  24. Spills • For a small spill: • Never clean up alone • Use a spill kit • For a large spill: • Evacuate • Call HazMat • Call 911

  25. Ventillation • 6 changes of air/hour in lab • Separate ventilation for prep and storage rooms • Hood ≠ room ventilation • Open windows ≠ room ventilation

  26. 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.

  27. Waste Labeling • Waste labels must display: • The words “hazardous waste” • Contents with chemical names, not formulas • Approximate concentrations • Date started • Initials

  28. Waste Disposal • Flinn • Waste pick-up every 6 months • Waste should NEVER be picked-up during school hours

  29. Overcrowding • Room occupancy based on fire and safety codes • One teacher: up to 24 students

  30. 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

  31. 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

  32. 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

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

More Related