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Safety Training Presentation

Safety Training Presentation. Working Safely With Benzene 29 CFR 1910.1028. Goals. Health and fire hazards, exposure monitoring Controls, safe work practices, PPE Quiz. Benzene Uses. Solvent for making other chemicals and plastic Manufacture of detergents and pharmaceuticals Gasoline.

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Safety Training Presentation

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  1. Safety Training Presentation Working Safely With Benzene29 CFR 1910.1028

  2. Goals • Health and fire hazards, exposure monitoring • Controls, safe work practices, PPE • Quiz

  3. Benzene Uses • Solvent for making other chemicals and plastic • Manufacture of detergents and pharmaceuticals • Gasoline

  4. Potential Exposure • Work in industries that manufacture or use benzene • Emissions from burning coal, oil, vehicles, gasoline • Tobacco smoke • Drinking contaminated water

  5. Physical Properties • Colorless liquid • Volatile • Heavier than air • Highly flammable • Sweet odor

  6. Acute Health Effects • Irritated eyes and skin • Irritated nose and throat • Skin redness and blisters • Dizziness, headache, vomiting • Convulsions, coma, death

  7. Chronic Health Effects • Causes drying or scaling of skin • Affects blood cells • Causes chromosomal aberrations • May effect reproductive systems • Causes cancer—leukemia

  8. Fire Hazards • Flammable liquid • Poisonous gases produced • Vapor is heavier than air • Benzene floats on water • Use dry chemical, CO2, water spray, foam

  9. Workplace Limits • OSHA: 8 hours - 1 ppm; 15-min. – 5 ppm • ACGIH: 8 hours - 0.5 ppm; 15-min. – 2.5 ppm • NIOSH: 10 hours - 0.1 ppm; 15-min. – 1 ppm • Carcinogens may not have a safe exposure level

  10. Exposure Monitoring • Breathing zone air samples • 8-hour time weighted average • Short-term exposure levels • Test urine samples

  11. More Exposure Monitoring • Monitoring frequency • Termination of monitoring • More monitoring • Employee notification

  12. Goals • Health and fire hazards, exposure monitoring • Controls, safe work practices, PPE • Quiz

  13. Exposure Above the PEL • Engineering controls and work practices • Respiratory protection • Written compliance program

  14. Engineering Controls • Enclose or isolate operations • Local exhaust ventilation • Automatic and enclosed pump systems • Vapor control system

  15. Safe Work Practices • Remove contaminated clothing • Do not take contam-inated clothing home • Eye wash station should be provided • Emergency shower should be provided

  16. More Safe Work Practices • Shower at end of work shift • Do not eat, drink, or smoke near benzene • Wash hands before eating, smoking, using restroom • Confined spaces—check for explosive gases

  17. Handling and Storage • Regulate and mark area • Keep away from oxidizing agents • Store in tightly closed container • No smoking or sources of ignition • Ground containers during transfer • Use non-sparking tools

  18. Communicating Benzene Hazards • Post signs • Danger Benzene • Cancer Hazard • Flammable—No Smoking • Authorized Personnel Only • Respirator Required • Label containers • Material Safety Data Sheets

  19. Personal Protective Equipment • Solvent-resistant clothing and gloves • Butyl Neoprene, VitonTM/Neoprene • Goggles • Face shield

  20. Respiratory Protection • Installation of engineering controls, maintenance, emergencies • Respiratory protection program • < 50 ppm – full-face organic vapor • < 100 ppm – full-face powered organic vapor • < 1,000 ppm – full-face supplied air • > 1,000 ppm – full-face SCBA

  21. First-Aid • Eyes—flush with water • Skin—remove clothing, wash with soap and water • Breathing—get to fresh air • Swallowing—do not induce vomiting

  22. Spills • Evacuate from spill area • Remove ignition sources • Cover with activated charcoal adsorbent • Ventilate and wash area

  23. Medical Surveillance • Before beginning employment • Regular intervals after that • Emergency exams • Blood count • Past and present symptoms • Physician’s written opinion

  24. Goals • Health and fire hazards, exposure monitoring • Controls, safe work practices, PPE • Quiz

  25. Summary • Hazards of benzene • Workplace exposure • Follow all safe work practices • Wear PPE • Medical surveillance

  26. Quiz & Review Coming Up

  27. Quiz 1. What does benzene look and smell like? 2. Describe some acute health effects of breathing benzene vapors. 3. What type of cancer is linked to chronic exposure? 4. Besides a health hazard, what other hazard does benzene present? 5. What do TWA and STEL stand for when discussing air monitoring?

  28. Quiz (cont.) 6. Describe a benzene engineering control. 7. Discuss good hygiene practices when working with benzene. 8. Describe safe practices when transferring benzene. 9. What materials should protective gloves and clothes be made of? 10. Who should be involved in the medical surveillance program?

  29. Quiz Answers 1. Colorless liquid with a sweet odor 2. Irritate nose and throat, dizziness, headache, vomiting, convulsions, coma, death 3. Leukemia 4. Benzene is a fire hazard 5. TWA—8-hour time weighted average, STEL—short-term exposure level

  30. Quiz Answers (cont.) 6. Engineering controls include enclosure, local ventilation 7. Wash before eating, smoking; wash at end of shift; remove contaminated clothes 8. No smoking, ground containers, non-sparking tools 9. Butyl Neoprene, VitonTM/Neoprene 10. Anyone that could potentially be exposed to benzene

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