School Lab Chem Hygiene Safety Plan


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School Lab Chem Hygiene Safety Plan

  1. 1. School Laboratory Chemical Hygiene & Safety Plan Presented by the Office of Environmental Health and Safety Los Angeles Unified School District
  2. 2. Chemical Hygiene and Safety Plan (CHSP) <ul><li>To comply with Title 8, California Code of Regulations (CCR), Section 5191 </li></ul><ul><li>To protect employees who work in laboratories from health hazards associated with hazardous chemicals </li></ul>
  3. 3. Definitions <ul><li>PEL: Permissible Exposure Limit. The highest concentration of a chemical that an individual can be exposed to, averaged over the duration of an 8-hour work shift. </li></ul><ul><li>TLV: Threshold Limit Value. The highest concentration of a chemical that an individual can be exposed to at any time during his/her work shift. </li></ul><ul><li>LD50: A measure of toxicity involving the use of laboratory animals to determine the dose of a given chemical at which death will occur in half of the test population. </li></ul><ul><li>PPE: Personal Protective Equipment. Examples include respirators and air purifying cartridges, gloves, chemical splash goggles, boots/shoe covers, and Tyvek coveralls. </li></ul>
  4. 4. Chemical Hygiene & Safety Plan Organization Chart Principal/ Site Administrator Science Teacher Plant Manager Chemical Safety Coordinator Office of Environmental Health and Safety
  5. 5. Responsibilities <ul><li>Principal/Site Administrator </li></ul><ul><li>Ensure implementation of the Chemical Hygiene & Safety Plan in school laboratories </li></ul><ul><li>Assign Chemical Safety Coordinator to train affected staff on CHSP requirements </li></ul><ul><li>Chemical Safety Coordinators (CSCs) </li></ul><ul><li>Provide training to affected staff on CHSP and Hazard Communication requirements </li></ul><ul><li>Perform health and safety inspections monthly </li></ul><ul><li>Conduct chemical inventory annually </li></ul><ul><li>Maintain Material Safety Data Sheets (MSDS) </li></ul><ul><li>Attend three training meetings per fiscal year </li></ul><ul><li>Arrange for removal of outdated chemicals </li></ul><ul><li>Maintain documents such as training sign-in sheets, chemical inventory, CSC activity checklist and monthly inspection checklist </li></ul>
  6. 6. Responsibilities <ul><li>Science Teachers </li></ul><ul><li>Plan and conduct each laboratory operation/activity in accordance with the District’s CHSP </li></ul><ul><li>Maintain an annual inventory of laboratory chemicals and their MSDS </li></ul><ul><li>Provide regular chemical hygiene, safety and housekeeping inspections </li></ul><ul><li>Observe proper chemical hygiene and safety work practices </li></ul><ul><li>Instruct students in safe work practices and procedures </li></ul><ul><li>Office of Environmental Health and Safety (OEHS) </li></ul><ul><li>Work with school principals, CSCs, and teachers to help implement school chemical hygiene & safety plans </li></ul><ul><li>Provide training to CSCs </li></ul><ul><li>Provide technical assistance to schools and employees on the CHSP </li></ul>
  7. 7. Routes of Entry <ul><li>There are three main routes by which chemical substances </li></ul><ul><li>can enter the body: </li></ul><ul><li>Inhalation by breathing dusts, fumes, mists or vapors </li></ul><ul><li>Ingestion by eating or drinking with contaminated hands or in a contaminated laboratory </li></ul><ul><li>Absorption through the skin or eye by contact with liquid, dusts, fumes, mists or vapors. </li></ul>
  8. 8. Requirements <ul><li>Develop and implement CHSP in school laboratories </li></ul><ul><li>Inform and train affected employees in: </li></ul><ul><li>º Hazard recognition and classification </li></ul><ul><li>º Standard operating procedures </li></ul><ul><li>º Minimization and control of hazards by engineering </li></ul><ul><li>and administrative controls </li></ul><ul><li>º Proper labeling and disposal of hazardous materials </li></ul><ul><li>and wastes </li></ul><ul><li>º Recordkeeping requirements of chemical inventories </li></ul>
  9. 9. Hazard Recognition and Classification <ul><li>Physical Safety Hazards </li></ul><ul><li>Chemical Health Hazards </li></ul><ul><li>Chemical Classes and Their Effects </li></ul>
  10. 10. Physical Safety Hazards <ul><li>Compressed gas – High pressure gas or mixture of gases in the container </li></ul><ul><li>Combustible liquid – Flash point above 100 º F but below 200º F </li></ul><ul><li>Explosive – A chemical that causes a sudden release of pressure, </li></ul><ul><li>gas and heat </li></ul><ul><li>Flammable liquid – Flash point below 100 º F </li></ul><ul><li>Flammable solid – Liable to cause fire through friction, absorption of </li></ul><ul><li>moisture, or spontaneous change </li></ul><ul><li>Oxidizer – A chemical that initiates or promotes combustion in </li></ul><ul><li>other materials </li></ul><ul><li>Reactive – A chemical that will vigorously polymerize, decompose, </li></ul><ul><li>condense, or will become self-reactive under conditions </li></ul><ul><li>of shock, pressure or temperature </li></ul><ul><li>Water-reactive – A chemical that reacts with water to release a gas that is </li></ul><ul><li>either flammable or presents a health hazard </li></ul>
  11. 11. Chemical Health Hazards <ul><li>Carcinogen – A chemical that is capable of causing cancer </li></ul><ul><li>Corrosive – A chemical that causes visible destruction of living </li></ul><ul><li>tissue by chemical action at the site of contact </li></ul><ul><li>Toxic – A substance with the potential of having the effect of a </li></ul><ul><li>poison or something harmful to the body </li></ul><ul><li>Irritant – A chemical that causes a reversible inflammatory </li></ul><ul><li>effect on living tissue, skin or eyes by chemical action </li></ul><ul><li>at the site of contact </li></ul><ul><li>Sensitizer – A chemical that causes an allergic reaction in normal </li></ul><ul><li>tissue after repeated exposure to the chemical </li></ul>
  12. 12. Chemical Classes and Their Effects <ul><li>Acids – Corrosive to skin and mucous membranes </li></ul><ul><li>Alcohols – Blindness and central nervous system (CNS) </li></ul><ul><li>depressants </li></ul><ul><li>Aldehydes and ketones – Irritate and have narcotic effects </li></ul><ul><li>Aliphatic – Central nervous system depressants and </li></ul><ul><li>asphyxiants. Some are neurotoxins </li></ul><ul><li>Alkalies – Severe tissue burns and bronchial spasms </li></ul><ul><li>Asphyxiants – Reduces the oxygen carrying capacity of the blood </li></ul><ul><li>or displaces atmospheric oxygen </li></ul><ul><li>Compounds of sulfur, – Corrosive to the skin and destructive to respiratory </li></ul><ul><li>phosphorus, nitrogen tissues </li></ul><ul><li>Halogens – Corrosive and highly irritating to tissues </li></ul><ul><li>Metal fumes/vapors - Systemic poisoning </li></ul>
  13. 13. Standard Operating Procedures <ul><li>General safe work practices </li></ul><ul><li>º Familiarize with the potential hazards of various chemical substances </li></ul><ul><li>º Avoid unnecessary exposure to chemicals by any route </li></ul><ul><li>º Wash areas of exposed skin before leaving the laboratory </li></ul><ul><li>º Do not eat, drink, smoke , gum chew, or apply of cosmetics in laboratory </li></ul><ul><li>º Do not keep food and drink in the laboratory </li></ul><ul><li>º Do not use laboratory glassware or utensils for food or beverages </li></ul><ul><li>º Do not allow practical jokes </li></ul><ul><li>º Confine long hair and loose clothing </li></ul><ul><li>º Avoid wearing open-toed shoes </li></ul><ul><li>º Wear protective clothing and goggles </li></ul><ul><li>º Do not work alone in the laboratory </li></ul><ul><li>º Never leave an experiment unattended </li></ul><ul><li>º Do not use mouth suction for piping or starting a siphon </li></ul><ul><li>Work safely with laboratory equipment and chemicals </li></ul><ul><li>Store chemicals properly </li></ul><ul><li>Warning signs and labels </li></ul>
  14. 14. Hazard Controls <ul><li>Minimize all chemical exposures </li></ul><ul><li>Engineering controls </li></ul><ul><li>º General laboratory ventilation </li></ul><ul><li>º Fume hoods </li></ul><ul><li>Personal protective equipment </li></ul><ul><li>º Use appropriate PPE such as aprons, laboratory coats, laboratory </li></ul><ul><li>aprons, gloves, goggles, face shields </li></ul><ul><li>Administrative controls </li></ul><ul><li>º Use only those chemicals in quantities whose chemical </li></ul><ul><li>concentrations can be controlled by the existing ventilation system </li></ul><ul><li>º Order should not exceed what is expected to be used in one year </li></ul>
  15. 15. Handling of Chemicals <ul><li>• Labeling </li></ul><ul><ul><li>1. Identity of contents. </li></ul></ul><ul><ul><li>2. Date chemical was acquired </li></ul></ul><ul><ul><li>3. Disposal date (for unstable chemicals). </li></ul></ul><ul><ul><li>4. Responsible person. </li></ul></ul><ul><ul><li>5. Hazardous characteristics. </li></ul></ul><ul><ul><li>6. Other pertinent safety information. </li></ul></ul><ul><li>• Storage </li></ul><ul><ul><li>1. MSDS sheets must be available for all chemicals. </li></ul></ul><ul><ul><li>2. All chemicals must be properly labeled and inventoried. </li></ul></ul><ul><ul><li>3. Do not store chemicals on top of lab benches, out in open, or above eye label. </li></ul></ul><ul><ul><li>4. Storage in hoods is not recommended. </li></ul></ul><ul><ul><li>5. Keep incompatible chemicals separated. </li></ul></ul><ul><ul><li>6. Flammables stored in flammable storage cabinet. </li></ul></ul><ul><ul><li>7. All cabinets containing chemicals must be labeled. </li></ul></ul>
  16. 16. Disposal <ul><li>All hazardous waste containers must be properly labeled with the name and address of </li></ul><ul><li>the school, composition and physical state of the waste, and accumulation date. </li></ul>Fill-out this form and fax to OEHS at (213) 241-6816
  17. 17. Spills <ul><li>Clean-up minor spills of diluted chemicals, nonvolatile or toxic using procedures listed on the MSDS </li></ul><ul><li>Wear appropriate protective apparel such as gloves and aprons </li></ul><ul><li>Evacuate the area if a volatile, flammable, toxic and/or concentrated material is spilled. </li></ul><ul><li>Notify OEHS at (213) 241-3199 immediately. </li></ul>
  18. 18. Chemical Inventory Records <ul><li>An inventory of all chemicals stored in each school </li></ul><ul><li>building shall be conducted annually and chemical </li></ul><ul><li>usage determined. </li></ul><ul><li>Inventory information shall include the chemical name, </li></ul><ul><li>quantity, hazard information, and storage location. </li></ul><ul><li>Inventory and chemical order records are to be </li></ul><ul><li>maintained by the Chemical Safety Coordinator, Site </li></ul><ul><li>Administrator, or Science Chairperson, with a copy sent </li></ul><ul><li>to OEHS. </li></ul>
  19. 19. “ A commitment to purchase a chemical is a commitment to handle and store the chemical safely and to dispose of the chemical in an environmentally acceptable fashion.”
  20. 20. Chemical Safety what’s the big deal?