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1 We will begin momentarily at 2pm ET Recordings will be available to ACS members after three weeks Contact ACS Webinars at Have Questions? Why am I muted? Don t worry. Everyone is muted except the presenter and host. Thank you and enjoy the show. Type them into questions box! Contact ACS Webinars at acswebinars@acs.org 1

2 Have you discovered the missing element? Find the many benefits of ACS membership! Benefits of ACS Membership Chemical & Engineering News (C&EN) The preeminent weekly news source. NEW! Free Access to ACS Presentations on Demand ACS Member only access to over 1,000 presentation recordings from recent ACS meetings and select events. NEW! ACS Career Navigator Your source for leadership development, professional education, career services, and much more. 2

3 Like us on Facebook! facebook.com/acswebinars How has ACS Webinars benefited you? expanding my knowledge about a variety of scientific topics. Also allows me to offer these to co-workers on site through our Diversity and Inclusion team, thus offering another forum for discussion. Fan of the Week Dr. Susan S. Marine Associate Professor Department of Chemistry and Biochemistry Miami University Middletown Be a featured fan on an upcoming webinar! Write to acswebinars@acs.org 3

4 youtube.com/acswebinars Hungry for a brain snack? TM ACS Webinets are 2 minute segments that bring you valuable insight from some of our most popular full length ACS Webinars See all the ACS Webinets at youtube.com/acswebinars 8 4

5 Beginning in 2014 all recordings of ACS Webinars will be available to current ACS members three weeks after the Live broadcast date. Live weekly ACS Webinars will continue to be available to the general public. Contact ACS Webinars at Laboratory Safety and Health Short Course Tuesday and Wednesday, December 2-3, 2014 Houston, TX Learn to identify and resolve the 10 most common laboratory hazards and compliance problems. Learn about specific chemical groups, chemical hazards, and safety precautions. Gain experience in implementing and maintaining laboratory safety programs. Develop chemical hygiene and laboratory safety training programs. Register at 5

6 Upcoming ACS Webinars Thursday, September 25, 2014 Pharmacoeconomics and IP Strategies in Drug Development Session 7 Dr. Richard Willke, Health Economist, Pfizer Dr. Robert Koch, Partner and IP Specialist, Milbank Thursday, October 2, 2014 The Chemistry of Death Dr. Lucas Zarwell, Chief Toxicologist, DC Medical Examiner's Office Dr. Darren Griffin, Professor of Genetics, University of Kent Contact ACS Webinars at acswebinars@acs.org Tragic Chemical Accidents: Combustible Dust Hazards Dr. Danielle Murphy Mechanical Engineer, CASE Forensics Dr. Tara Henriksen Certified Fire and Explosion Investigator, Sr. Chemical Engineer CASE Forensics Recordings will be available to ACS members after three weeks Contact ACS Webinars at acswebinars@acs.org 6

7 CASE Forensics Corporation Tara Henriksen Ph.D, CFI Sr. Chemical Engineer CASE Forensics Corporation September 18, 2014 To present information on combustible dust incidents in the chemical processing industry To explain the hazards associated with combustible dust To provide information on the status of combustible dust regulations in the U.S. 14 7

8 Identify the industries which create or process combustible dust Understand how to minimize the risks associated with combustible dust Identify the existing NFPA standards on combustible dust 15 Introduction to combustible dust Industries affected Combustible dust case studies OSHA and NFPA Best practices Q & A 16 8

9 A particulate solid that presents a fire or deflagration hazard when suspended in air or some other oxidizing medium over a range of concentrations regardless of particle size or shape. -OSHA NEP Any finely divided solid material that is 420 microns or smaller in diameter and presents a fire or explosion hazard when dispersed and ignited in air. -NFPA Definition 17 Any combustible solid material, composed of distinct particles or pieces, regardless of size, shape or chemical composition. -NFPA Combustible Particulate Solid Dust 18 9

10 Dust Ignition source Oxygen Dust dispersion Confinement 19 CASE Forensics All Rights Reserved Audience Survey Question Which of the following industries does not generate combustible dust? Food and Beverage Coal and Agricultural Wood and Paper They all produce combustible dust Trick question none produce combustible dust 20 10

11 They all produce combustible dust. Industries Affected: Food and beverage Metals processing Coal Wood and paper Plastics Textiles Chemicals And others Wood Plastic Metal (Al, Mg) Carbon (Coal), Sugar Flour Paper Soap, Etc. 21 Combustible dust can be a desired manufactured product, but it is often generated as a waste by-product. Due to the fire and explosion hazard associated with combustible dust, it is necessary to control dust accumulation throughout a facility, and to ensure that the equipment handling combustible dust is properly designed and safeguarded

12 9 major incidents have been investigated since 2003 These incidents resulted in over 36 deaths and 120 injuries CSB does not investigate every dust explosion incident There are likely many more combustible dust explosions In a Combustible Dust Hazard study issued in 2006, CSB identified 281 dust fires and explosions between 1980 and 2005 (119 fatalities and 718 injuries) 23 Photo Credits: Theo Gray Year of Incident Company Type of Dust 2003 West Pharmaceutical Services polyethylene 2003 CTA Acoustics phenolic resin 2003 Hayes Lemmerz Plant aluminum 2009 Imperial Sugar sugar 2010 AL Solutions titanium 2011 Hoeganaes iron 24 12

13 Over 60 killed & over 150 injured in a recent explosion in Eastern China. Metal dust blamed (Al) 25 13

14 HPP Dryer 2 Baghouse Burner 1 Baghouse blowers Cool air blower Sifter Fluid bed blower CIP tank 27 To powder bins Fire detected around 10:30 pm in dryer bottom, operators unable to control it Fire department responds, reports the fire out around 11:30 pm A little while later, an operator goes to dryer top to begin cleaning/replacing injection nozzles A little after 12:00 am, an explosion in the baghouse occurs, while the operator is still in the dryer top cleaning injection nozzles Explosion destroyed the baghouse and the dryer Operator rescued from dryer top by fire department, fire extinguished in baghouse 28 14

15 29 Operator attempted to extinguish from this access port 30 15

16

17 Out to atm Air in Bulk starch DRYER COOLER 34 17

18 35 8 killed, over 50 injured 36 18

19 OSHA & NFPA Audience Survey Question Which standard specifically instructs on the prevention of hazards related to the manufacture, handling and processing of combustible particulate solids? NFPA 1124 NFPA 96 NFPA 654 NFPA 68 NFPA

20 NFPA 654 Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids 39 There other NFPA standards which address combustible dust hazards for specific industries or specific types of dust: NFPA 61: Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food Processing Facilities NFPA 484: Standard for Combustible Metals NFPA 644 Standard for Prevention of Fires and Explosions in Wood Processing and Woodworking facilities And others 40 20

21 Although NFPA has a host of standards applicable to preventing fires and explosions from combustible dust, they are working on a NEW STANDARD NFPA 652 The Standard on Combustible Dust, scheduled for release in The methods outlined for combustible dust identification and hazard prevention will not be covered in this lecture In general, the strategy for preventing a combustible dust incident is specific to the nature of the dust and the environment in which it is expected to be handled The interested reader is encourage to review the standards specific to their industry and review NFPA s Guide to Combustible Dusts,

22 In 2006, the CSB recommended that OSHA create a regulation to enforce the combustible dust standards in NFPA, which without the force of law are implemented only at the discretion of the facility To date, OSHA has not created a regulation which requires adherence to NFPA combustible dust standards In the interim, OSHA has implemented the Combustible Dust National Emphasis Program (NEP) 43 The OSHA NEP provides policies for inspecting workplaces that create or handle combustible dust that could cause a fire or explosion (initiated in 2007) Some facilities are not identified or targeted by OSHA for inspection OSHA has been working on a regulation for combustible dust since

23 Audience Survey Question What can you do to reduce your risk for a combustible dust explosion? Understand the regulations and standards Control ignition sources Inspect dust collectors routinely Conduct a PHA All of the above 45 Understand the regulations and standards Control ignition sources (ensure properly rated electrical equipment) Inspect your dust collector routinely Employ a Dust Management Program (housekeeping) Ensure your facility & equipment is properly protected from fire (sprinklers, deluge, etc.) Conduct a PHA Conduct employee education 46 23

24 Thank You Tragic Chemical Accidents: Combustible Dust Hazards Dr. Danielle Murphy Mechanical Engineer, CASE Forensics Dr. Tara Henriksen Certified Fire and Explosion Investigator, Sr. Chemical Engineer CASE Forensics Recordings will be available to ACS members after three weeks Contact ACS Webinars at 24

25 Upcoming ACS Webinars Thursday, September 25, 2014 Pharmacoeconomics and IP Strategies in Drug Development Session 7 Dr. Richard Willke, Health Economist, Pfizer Dr. Robert Koch, Partner and IP Specialist, Milbank Thursday, October 2, 2014 The Chemistry of Death Dr. Lucas Zarwell, Chief Toxicologist, DC Medical Examiner's Office Dr. Darren Griffin, Professor of Genetics, University of Kent Contact ACS Webinars at acswebinars@acs.org Tragic Chemical Accidents: Combustible Dust Hazards Dr. Danielle Murphy Mechanical Engineer, CASE Forensics Dr. Tara Henriksen Certified Fire and Explosion Investigator, Sr. Chemical Engineer CASE Forensics Recordings will be available to ACS members after three weeks Contact ACS Webinars at acswebinars@acs.org 25

26 How has ACS Webinars benefited you? expanding my knowledge about a variety of scientific topics. Also allows me to offer these to co-workers on site through our Diversity and Inclusion team, thus offering another forum for discussion. Fan of the Week Dr. Susan S. Marine Associate Professor Department of Chemistry and Biochemistry Miami University Middletown Be a featured fan on an upcoming webinar! Write to acswebinars@acs.org Laboratory Safety and Health Short Course Tuesday and Wednesday, December 2-3, 2014 Houston, TX Learn to identify and resolve the 10 most common laboratory hazards and compliance problems. Learn about specific chemical groups, chemical hazards, and safety precautions. Gain experience in implementing and maintaining laboratory safety programs. Develop chemical hygiene and laboratory safety training programs. Register at 26

27 youtube.com/acswebinars Benefits of ACS Membership Chemical & Engineering News (C&EN) The preeminent weekly news source. NEW! Free Access to ACS Presentations on Demand ACS Member only access to over 1,000 presentation recordings from recent ACS meetings and select events. NEW! ACS Career Navigator Your source for leadership development, professional education, career services, and much more. 27

28 ACS Webinars does not endorse any products or services. The views expressed in this presentation are those of the presenter and do not necessarily reflect the views or policies of the American Chemical Society. Contact ACS Webinars at 55 Upcoming ACS Webinars Thursday, September 25, 2014 Pharmacoeconomics and IP Strategies in Drug Development Session 7 Dr. Richard Willke, Health Economist, Pfizer Dr. Robert Koch, Partner and IP Specialist, Milbank Thursday, October 2, 2014 The Chemistry of Death Dr. Lucas Zarwell, Chief Toxicologist, DC Medical Examiner's Office Dr. Darren Griffin, Professor of Genetics, University of Kent Contact ACS Webinars at acswebinars@acs.org 28

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