Laboratory Safety Chp Revised Sept2006

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  • 1. EXECUTIVE ENVIRONMENTAL SERVICES CORP (EESC) and ALLIANCE of SCHOOLS for COOPERATIVE INSURANCE PROGRAMS (ASCIP) For use and reproduction by ASCIP members 1 only. EESC 2006
  • 2. Presents Laboratory Safety & The Chemical Hygiene Plan For use and reproduction by ASCIP members 2 only. EESC 2006
  • 3. TOPICS • Cal/OSHA Standard 5191 • Your District’s Chemical Hygiene Plan • WHAT IS IN AN MSDS? • CHEMICAL CLASSES – PHYSICAL & CHEMICAL PROPERTIES • HEALTH EFFECTS • PERMISSIBLE EXPOSURE LEVELS • PERSONAL PROTECTIVE EQUIPMENT For use and reproduction by ASCIP members 3 only. EESC 2006
  • 4. CAL/OSHA Standard 5191 (1991) • “Occupational Exposure to Hazardous Chemicals in Laboratories.” • Laboratory use of hazardous chemicals • Chemical Hygiene Plan • Employee Information and Training • Medical consultation and exams • Hazard Identification For use and reproduction by ASCIP members 4 only. EESC 2006
  • 5. Your District’s Chemical Hygiene Plan • Department Responsibilities: – Departmental CHP – Standard Operating Procedures (SOPs) – Designation of a Chemical Hygiene Officer For use and reproduction by ASCIP members 5 only. EESC 2006
  • 6. Chemical Hygiene Plan • Basic Laboratory Safety Rules – No eating or drinking in labs – No open toed shoes/sandals/shorts – Wear appropriate PPE – Do not taste or smell chemicals – Close all containers when not in use • Specific Safety Rules per SOPs For use and reproduction by ASCIP members 6 only. EESC 2006
  • 7. Chemical Hygiene Plan • Labeling (All containers must be labeled) – Either original Manufacturer’s Label or – Identity & Concentration (100% Acetone) – Warning words (Flammable) – Date prepared – Initials of preparer For use and reproduction by ASCIP members 7 only. EESC 2006
  • 8. For use and reproduction by ASCIP members 8 only. EESC 2006
  • 9. Chemical Hygiene Plan • Chemical Procurement – Departmental Written Protocol – Approval Process – Substitute with less hazardous chemicals – Limit purchase amounts – Obtain MSDS – Maintain Chemical Inventory For use and reproduction by ASCIP members 9 only. EESC 2006
  • 10. GOING GREEN GREEN CHEMISTRY • US EPA website www.epa.gov – Creating Your Own School Cleanout – 12 Principles of Green Chemistry • American Chemical Society – www.chemistry.org – Integrating Green Chemistry into the Curriculum For use and reproduction by ASCIP members 10 only. EESC 2006
  • 11. Chemical Hygiene Plan • Chemical Storage – Braced shelves or cabinets – Flammable storage cabinets – Acid cabinets – Reactives – Corrosives – Compressed Gas Cylinders – Incompatible Chemicals For use and reproduction by ASCIP members 11 only. EESC 2006
  • 12. For use and reproduction by ASCIP members 12 only. EESC 2006
  • 13. For use and reproduction by ASCIP members 13 only. EESC 2006
  • 14. WHAT IS IN AN MSDS? • Name of Manufacturer/Supplier • Date MSDS was last updated • The Chemical Name = Acetone • The Common Name = Acetone • CAS # = 67-64-1 For use and reproduction by ASCIP members 14 only. EESC 2006
  • 15. WHAT IS IN AN MSDS? • Physical and Chemical Properties: –BP, MP, VP, etc. • Fire, Explosion and Reactivity hazards: –FP, LEL & UEL For use and reproduction by ASCIP members 15 only. EESC 2006
  • 16. WHAT IS IN AN MSDS? • Health Hazards for Acetone • Route of entry: Skin & Inhalation For use and reproduction by ASCIP members 16 only. EESC 2006
  • 17. WHAT IS IN AN MSDS? • Precautions for Safe Handling • Control Measures: PPE = Rubber gloves • Emergency and First Aid Procedures • Carcinogen information: No For use and reproduction by ASCIP members 17 only. EESC 2006
  • 18. CHEMICAL CLASSES • REACTIVITY • CORROSIVITY • FLAMMABILITY • TOXICITY For use and reproduction by ASCIP members 18 only. EESC 2006
  • 19. REACTIVITY • Water Reactive • Air Reactive • Shock Explosive • Spontaneous Ignition For use and reproduction by ASCIP members 19 only. EESC 2006
  • 20. CORROSIVITY ♦pH < 2 or > 12.5 –OR ♦Corrodes Steel at a rate greater than • 6.35 mm/year @55°C (131°F) • 0.250 inches/year • Generates Hydrogen For use and reproduction by ASCIP members 20 only. EESC 2006
  • 21. FLAMMABILITY Flash Point (FP) • Lowest temp. of a liquid which produces enough vapor to ignite • Needs ignition source • Determines Hazard Category Flammability = Ignitability • EPA uses Closed Cup Criteria For use and reproduction by ASCIP members 21 only. EESC 2006
  • 22. FLAMMABILITY • Class 1A Flammable Liquid – FP < 73F and BP < 100F • Class 1B Flammable Liquid – FP < 73F and BP ≥ 100F • Class 1C Flammable Liquid – FP ≥ 73F and < 100F For use and reproduction by ASCIP members 22 only. EESC 2006
  • 23. 5538. Office, Educational and Institutional Occupancies • (a) Storage shall be limited to that required for operation of office equipment, maintenance, demonstration, treatment, and laboratory work. All liquids in laboratories and at other points of use shall meet the following storage provisions: • (1) No container for Class I or Class II liquids shall exceed a capacity of one gallon except that safety cans can be of two gallons capacity. • (2) Not more than 10 gallons of Class I and Class II liquids combined shall be stored outside of a storage cabinet or storage room, except in safety cans. • (3) Not more than 25 gallons of Class I and Class II liquids combined shall be stored in safety cans outside of a storage room or storage cabinet. • (4) Not more than 60 gallons of combustible liquids shall be stored outside of a storage room or storage cabinet. • (5) Quantities of flammable and combustible liquids in excess of those set forth in this section shall be stored in an inside storage room or storage cabinet. (Title 24, T8-5538) For use and reproduction by ASCIP members 23 only. EESC 2006
  • 24. FLAMMABILITY • Class II Combustible Liquid – FP ≥ 100F and < 140F • Class IIIA Combustible Liquid – FP ≥ 140F and < 200F • Class IIIB Combustible Liquid – FP ≥ 200F For use and reproduction by ASCIP members 24 only. EESC 2006
  • 25. FLAMMABILITY • Upper Flammability Limit (UFL) • Lower Flammability Limit (LFL) • Upper Explosive Limit (UEL) • Lower Explosive Limit (LEL) % by volume at room temp For use and reproduction by ASCIP members 25 only. EESC 2006
  • 26. FLAMMABILITY LEL UEL Range p-Xylene 1.1 7.0 5.9 Propane 2.1 9.5 7.4 MeCl2 13 23 10 Acetylene 2.5 100 97.5 For use and reproduction by ASCIP members 26 only. EESC 2006
  • 27. Vapor Pressure (VP) • Measures relative volatility • VP increases with increasing temp • Don’t store high VP chemicals in Direct sunlight! For use and reproduction by ASCIP members 27 only. EESC 2006
  • 28. Vapor Pressure (VP) Examples: • Propane 8.4 atm (Gas) • MeCl2 350 mm Hg • Benzene 75 mm Hg • Water 17.5 mm Hg • Perc. 14 mm Hg • PCBs 0.001 mm Hg • Asbestos 0 For use and reproduction by ASCIP members 28 only. EESC 2006
  • 29. TOXICITY The ability to cause harm. For use and reproduction by ASCIP members 29 only. EESC 2006
  • 30. TOXICITY • Toxicity depends on: – Route of exposure – Dose – Duration – Reaction to multiple chemicals – Sensitivity For use and reproduction by ASCIP members 30 only. EESC 2006
  • 31. TOXICITY • Route of exposure –Inhalation –Skin contact –Eye contact –Ingestion For use and reproduction by ASCIP members 31 only. EESC 2006
  • 32. TOXICITY • Dose Response Curve – LD50 and LC50 – mg/kg and ppm or mg/m3 – NOEL = No Observable Effect Level • LD50 < 2,500 mg/kg = Hazardous Waste • Acetone Oral, rat: LD50 = 5,800 mg/kg; • Benzene Oral-MAN LD 50 = 50 mg/ kg • Arsenic Oral -RAT LD50 = 763 mg kg For use and reproduction by ASCIP members 32 only. EESC 2006
  • 33. TOXICITY • Duration – Acute = Short Term • Accidental splash – Chronic = Long Term • Coal Miner For use and reproduction by ASCIP members 33 only. EESC 2006
  • 34. TOXICITY • Reaction to multiple chemicals – What is the target organ? – Additive effect • Toluene + Gasoline – Synergistic • Asbestos + Smoking For use and reproduction by ASCIP members 34 only. EESC 2006
  • 35. TOXICITY • Sensitivity – Allergies – Sensitizers • Acrylates, Flour dust, Formaldehyde, Gluteraldehyde, Turpentine, TDI – Age – Health – Genetics For use and reproduction by ASCIP members 35 only. EESC 2006
  • 36. ACUTE HEALTH EFFECTS • Irritants - Dusts, Acid mists, Solvents – Target Organs • Eyes - Red, itchy, tears • Skin - Dermatitis, rash, defatting • Respiratory System - coughing – Example: Acetone • Irritating to Eyes, Nose & Throat For use and reproduction by ASCIP members 36 only. EESC 2006
  • 37. CHRONIC HEALTH EFFECTS • Target Organs – Lungs - Silica & Asbestos – Liver = Hepatotoxins • Carbon Tetrachloride, Nitrosamines – Kidney = Nephrotoxins • Halogenated Hydrocarbons, Uranium For use and reproduction by ASCIP members 37 only. EESC 2006
  • 38. CHRONIC HEALTH EFFECTS • Target Organs – Neurotoxins = Nervous system • Mercury, Carbon disulfide, – Hematopoietic = blood system • Carbon monoxide, Cyanides – Reproductive Toxins • Lead, Alcohol For use and reproduction by ASCIP members 38 only. EESC 2006
  • 39. CHRONIC HEALTH EFFECTS CANCER State of California Prop. 65 List - Several hundred chemicals in 4 categories • Carcinogens • Developmental Toxicity • Female Reproductive Toxicity • Male Reproductive Toxicity • Government buildings are exempted from posting warning signs For use and reproduction by ASCIP members 39 only. EESC 2006
  • 40. Permissible Exposure Levels (PEL) • California Occupational Safety and Health Administration (Cal/OSHA) – 8 hour time-weighted average – 40-hour workweek – “nearly all workers” – daily exposure – “without adverse effect” For use and reproduction by ASCIP members 40 only. EESC 2006
  • 41. Permissible Exposure Levels (PEL) • Definitions – PEL TLV & TWA – STEL – Ceiling Limit – Odor Threshold – REL – IDLH For use and reproduction by ASCIP members 41 only. EESC 2006
  • 42. ACETONE Cal/OSHA PEL 750 ppm Federal TWA 1000 ppm NIOSH REL 250 ppm Cal/OSHA STEL 1000 ppm Cal/OSHA Ceiling 3000 ppm NIOSH IDLH 2500 ppm (10% LEL) ACGIH TWA 500 ppm For use and reproduction by ASCIP members 42 only. EESC 2006
  • 43. BENZENE Cal/OSHA PEL 1 ppm Federal TWA 1 ppm NIOSH REL 0.1 ppm Cal/OSHA STEL 5 ppm NIOSH STEL 1 ppm NIOSH IDLH 500 ppm ACGIH TWA 0.5 ppm For use and reproduction by ASCIP members 43 only. EESC 2006
  • 44. Hazard Recognition • Odor Threshold – Acetone 4.58 ppm – Benzene 8.65 ppm – Acetic Acid 0.016 ppm – Hydrogen Sulfide 0.0005 ppm – Carbon Disulfide 0.096 ppm • olfactory fatigue – Carbon Monoxide 100,000 ppm For use and reproduction by ASCIP members 44 only. EESC 2006
  • 45. Hazard Recognition • Health Effects of Overexposure to Acetone – Headache, Coughing – Dizziness or Dullness – Irritation of skin, eyes, throat or lungs – Skin Exposure through damaged PPE can cause defatting action and dermatitis • Wash thoroughly & seek medical help – Use of Alcohol enhances toxic effects For use and reproduction by ASCIP members 45 only. EESC 2006
  • 46. Hazard Recognition • Detector Tubes - Drager tubes • Passive Air Monitoring - 3M OVM • Active Air Monitoring - Charcoal Tubes • Direct Reading Instruments – GC/FID or PID – Confined Space 4 gas analyzer • O2, CO2, CO, H2S For use and reproduction by ASCIP members 46 only. EESC 2006
  • 47. PERSONAL PROTECTIVE EQUIPMENT (PPE) • LABORATORY WORK PPE – Labcoat – Gloves – Shoes (no sandals) – Long-sleeved pants (no shorts) – Goggles (splashing hazards) – Aprons (nitric acid) For use and reproduction by ASCIP members 47 only. EESC 2006
  • 48. For use and reproduction by ASCIP members 48 only. EESC 2006
  • 49. GLOVES • Choose your gloves wisely – Latex - minimal protection – Rubber – Nitrile – Leather - tools only – Suggested gloves should be confirmed with the vendor and for additional information and use limitations. For use and reproduction by ASCIP members 49 only. EESC 2006
  • 50. SULFURIC ACID NIOSH RECOMMENDATIONS • 8 hr: Butyl, PE, Teflon, Saranex, PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem • 4 hr: Viton For use and reproduction by ASCIP members 50 only. EESC 2006
  • 51. ACETONE • 8 hr: Butyl, PE/EVAL, Barricade, CPF3, Responder, Trellchem, Tychem For use and reproduction by ASCIP members 51 only. EESC 2006
  • 52. Lab Safety Equipment • Fume Hoods tested annually • Carts & Rubber cradles/carboys • Eyewash station tested monthly • Deluge shower tested monthly • Fire blanket • Fire Extinguishers tested annually • Gas Cylinder racks For use and reproduction by ASCIP members 52 only. EESC 2006
  • 53. For use and reproduction by ASCIP members 53 only. EESC 2006
  • 54. For use and reproduction by ASCIP members 54 only. EESC 2006
  • 55. First Aid Measures • #1 - Remove to Fresh Air • Get medical aid if necessary • Do not induce vomiting • Flush eyes or skin for at least 15 minutes • Thoroughly clean clothes and shoes • Seek follow-up medical attention For use and reproduction by ASCIP members 55 only. EESC 2006
  • 56. First Aid Kit • Contents must be approved by the District’s “Consulting Physician” • List of contents is recommended by – ANSI – Fed OSHA 1910.266 Appendix A For use and reproduction by ASCIP members 56 only. EESC 2006
  • 57. Reporting Accidents • Someone is burned with acid and hospitalized – Notify CAL/OSHA within 8 hours – Complete accident report – Accident investigation and follow-up – What went wrong and how can it be prevented in the future? For use and reproduction by ASCIP members 57 only. EESC 2006
  • 58. Housekeeping • Fume hoods are not used for storage • Clean counters at the end of each day • Clean small spills immediately • No drinking bottles, cups or food in the laboratories For use and reproduction by ASCIP members 58 only. EESC 2006
  • 59. For use and reproduction by ASCIP members 59 only. EESC 2006
  • 60. Housekeeping • Do not block access to electrical panels • Do not block access to exit doors or aisles • Keep access to safety showers and eyewashes free of obstruction For use and reproduction by ASCIP members 60 only. EESC 2006
  • 61. For use and reproduction by ASCIP members 61 only. EESC 2006
  • 62. For use and reproduction by ASCIP members 62 only. EESC 2006
  • 63. For use and reproduction by ASCIP members 63 only. EESC 2006
  • 64. Spills and Waste Disposal • Confine small spills • Follow SOP or MSDS for cleanup and disposal • Evacuate area for medium to large spills • Follow emergency notification procedure • Dispose of waste in labeled containers For use and reproduction by ASCIP members 64 only. EESC 2006
  • 65. Laboratory Waste Treatment • AB966 Benchtop treatment options – Must use procedures from Prudent Practices or peer-reviewed journals – Less than 5 gallons from a single experiment – Treated at the point of generation and within 10 days of generation – Person performing treatment has knowledge and training about the waste (Retain training records for 3 years) For use and reproduction by ASCIP members 65 only. EESC 2006
  • 66. For use and reproduction by ASCIP members 66 only. EESC 2006