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Science Teacher’s Health and Safety Workshop. Mary Loesing Science, Technology, & FACS Chairperson Connetquot Central School District Theresa Curry Science Coordinator Manhasset Public Schools. Agenda. Chemical Hygiene Plans Chemical Purchasing and Storage
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Science Teacher’s Health and Safety Workshop Mary Loesing Science, Technology, & FACS Chairperson Connetquot Central School District Theresa Curry Science Coordinator Manhasset Public Schools
Agenda • Chemical Hygiene Plans • Chemical Purchasing and Storage • Chemical Inventory and Disposal • Engineering Controls • Teacher Training
Chemical Hygiene Plans • Required by OSHA 1910.1450 • Enforced by Department of Labor – Public Employee Safety and Health – PESH in New York State • Written document with policies and procedures to protect employees and indirectly students.
Chemical Hygiene Officer • Appointed by the Board of Education • Ideally, a certified chemistry teacher • Position can be separated into an Officer for Laboratory Chemicals and an Officer for Buildings and Grounds Chemicals
Chemical Purchasing • Evaluate hazards and physical properties of each chemical before it is ordered. • Order only as much of each chemical as will be used in one school year. • Know how the chemical will be disposed of before it is ordered. • Everything that is ordered must be entered into the chemical inventory.
Chemical Inventory • The chemical inventory should be updated annually. • In the event that first responders, PESH or the DEC is called to your school, they will expect to see a copy of your chemical inventory. • MSDS Sheets must be available. • All containers must be properly labeled.
Chemical Storage • Organize chemicals by compatibility, not alphabetically. • The chemical storage room must remain locked, and students should not be permitted to enter. • Acids should be stored in an acid cabinet, with nitric acid segregated from the others.
Chemical Storage Cont. • Flammables should be stored in an approved flammables cabinet. • Shelves should have a ¾” lip. • Large, heavy containers should not be stored on high shelves. • When chemicals are received, the bottle should be dated.
Chemical Disposal • Contractors dispose of waste at considerable cost to the district. Your buildings and grounds department should have a list of approved contractors. • Any and all chemicals that are old and not used should be disposed of. • Keep records of what is disposed of, you are responsible for chemicals from cradle to grave.
Chemicals That Should Never be in Schools • Nitroglycerin, benzene, acrylonitrile, arsenic and compounds, benzoyl peroxide, carbon disulfide, chlorine, colchicine, HF, hydrobromic acid, mercury, mercuric chloride, phenol, potassium, phosphorus, uranium.
Non-Approved Chemicals • No one should bring chemicals into the school. Anyone who does could be subject to large fines. • No experiments should be conducted with chemicals that are not part of the school’s inventory.
Engineering Controls • Safety Glasses and Chemical Splash Goggles • Fume Hoods • Aprons • Gloves • Eyewash/Safety Showers
Goggles • Safety Glasses do not protect from liquid splashes • For liquids use indirectly vented chemical splash goggles • Eye protection should be worn in the lab at all times.
Fume Hoods • Should be closed when not in use • Not a storage site for chemicals • 80-100 fpm velocity, not to exceed 120 fpm which causes turbulence • Should be tested annually to ensure that hood vents to the outside.
Gloves and Aprons • Do not use latex gloves due to allergies and poor chemical resistance. • Use nitrile, pvc or polyethylene, of these nitrile is the most chemical resistant. • Have gloves available in a variety of sizes.
Gloves, Cont. • Online databases from NIOSH have glove compatibility charts. • Chemical stockroom and cleaning may require different gloves, such as utility gloves which are thicker and longer.
Eyewashes and Showers • ANSI Z358.1 Standards • Units should be activated weekly. • Units should be installed within 10 seconds travel and should be identified with a sign. • Eyewashes must deliver 1.5 liters of potable water per minute for 15 minutes to both eyes simultaneously.
Eyewashes & Showers, Cont. • Showers must deliver 20 gallons per minute flow. • Water should be tepid, 60-100o F. • Flush units to prevent bacteria and other contaminants from building up in the unit.
Training • All staff that use chemicals as part of their job responsibilities should receive yearly Right-to Know and Blood Borne Pathogens training. • Supervisors should keep a signed log of all that attend the yearly training. • Flinn Scientific offers free online safety videos, student safety contracts and safety certification.
Issues, Concerns • Use common sense. • Document safety discussions in your plan book. This is your legal record that such discussions took place. • Always try out a lab or demonstration before it is done in front of students. • Your safety and that of your students should be your paramount concern. • Questions?