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Safety Training Presentation Working Safely With Benzene 29 CFR 1910.1028.

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Presentation on theme: "Safety Training Presentation Working Safely With Benzene 29 CFR 1910.1028."— Presentation transcript:

1 Safety Training Presentation Working Safely With Benzene 29 CFR

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, CO 2, water spray, foam

9 Workplace Limits OSHA: 8 hours - 1 ppm; 15-min. – 5 ppm ACGIH: 8 hours ppm; 15-min. – 2.5 ppm NIOSH: 10 hours 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, Viton TM /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

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, Viton TM /Neoprene 10. Anyone that could potentially be exposed to benzene


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