Materials Science & Engineering Dept. Along with Environmental Health & Safety University of Tennessee For Lab Safety Questions: Pam Koontz [email protected] James Cantu [email protected] For Hazardous Waste Questions: April Case [email protected] Environmental Health & Safety ehs.utk.edu 974-5084 www.facebook.com/utkehs UTK/UTIA Biosafety Office Robin Lyn Trundy UTK/UTIA Safety Officer 974-1938 [email protected] Amy Knowles UTIA Occupational Health Nurse 974-5728 [email protected] UTK Radiation Safety Office Marsha Smith Radiation Safety Officer Phone: 974-5580 E-mail: [email protected] Dr. Kurt Sickafus, Chair Dr. Carl Lundin Dr. Roberto S. Benson Mr. Greg Jones • • • • • • For Emergency Call 911 Call your Supervisor Call Safety Coordinator, Greg Jones If you can not reach your Supervisor or Greg contact the MSE main office (Carla) Call Environmental Health & Safety for help with spill cleanup, or to report unsafe conditions Help your Supervisor fill out a “Supervisors Report of Employee Accident form” ASAP! UT Student Health Center 1800 Volunteer Blvd. UT Medical Center 1924 Alcoa Highway Safety depends on choices Good choices rely on having good information before the choice has to be made. Training ◦ Initial ◦ Periodic ◦ As-needed Resources ◦ MSDS/SDS, Labels, Chemical Hygiene Plan (CHP), Emergency Response Plan, Faculty Advisor, Person In Charge (PIC), Lab Placards Ask Questions! What is the nature of my lab? ◦ My work space ◦ My neighbor’s work space What hazards are present? ◦ ◦ ◦ ◦ Chemical/Physical/Bio/Rad Do you know how to react? Have you practiced? Have you shared your knowledge? Is there an Emergency Plan, Chemical Hygiene Plan, SDS? Plan, Share, Practice Make a plan Write it down Ensure everyone understands Review and practice Identify local emergency numbers Locate medical treatment centers and trauma centers Procedures for dealing with an emergency ◦ Physical injury ◦ Chemical exposure ◦ Environmental Exposure Evacuation and Meeting location Accidents Spills / Splashes / Accidental Releases Near Misses Fire UT Alert System (http://www.utk.edu/utalert/) Emergencies – 911 Chemical spill or release – EHS – 4-5084 (do not leave a voicemail message) After hours spill or release – UTPD – 4-3111 Plan, Share, Practice Environmental Hazards ◦ Work area conditions ◦ Hot/cold, humid/dry, improper lighting Chemically Produced Physical Hazards ◦ Explosives & Reactives Equipment Hazards ◦ Mechanical, Electrical, Vacuum, High pressure, Cut and Abrasion Hazards, Hot and Cold equipment, Open flames, Noise/Sound Number one type of accident is still “Slips, Trips, and Falls” ◦ Maintain safe pathways and use good housekeeping ◦ Keep cables and cords in safe paths where they will not be damaged and they will not contribute to trip hazards. Highly Reactive compounds and incompatibles can cause very powerful energy release in the form of intense light, heat or pressure waves. Use only the scale of reaction required and approved to achieve your goals. Use proper PPE and Engineering Controls to prevent exposure to a potential explosion If the agent/reaction has the possibility of a violent reaction believe that it could happen to you. Mechanical Electrical Vacuum/High pressure Cut and Abrasion Hazards Hot and Cold equipment Open flames Noise/Sound Know and train on even the most basic equipment. Equipment with moving parts can entrap extremities, clothing, and long hair. ◦ Use proper clothing and PPE and tie back long hair. Ensure guards are in place and in good condition. Never remove safety devices Moving objects can throw objects Use lockout tagout procedures when repairing Ways to avoid common lab electrical hazards are ensuring cables and cords are not damaged by the lab environment. ◦ Avoid heat/flame damage to insulation ◦ mechanical trauma such as the damage a cord may receive behind a heavy object such as a gas cylinder. Do not daisy chain extension cords or power strips. Extension cords are designed for temporary use only. If electrical work is needed in your lab a qualified electrical worker is required to do the work. Use GFCI outlets when the risk of shock is higher such as at sinks and water sources. ◦ Note: Grounding and GFCI are not the same. Never bypass a grounding prong on an electrical plug. If your outlets are not “holding” or “gripping” the plug, then notify facilities services as the outlet may be damaged and a fire hazard. If work is required in your lab please ensure you are aware of what a lockout condition is and how it relates to you as a nonelectrical worker. Chance of Implosion or Explosion Particularly dangerous with Glassware For pressurized equipment and glassware: ◦ Ensure a blast shield or hood sash is in place. ◦ If using a face shield eye protection must be worn as well Broken Glassware should be replaced. Use proper technique and PPE when working. Good housekeeping keeps Glassware from: ◦ Accumulating in the dirty bin ◦ Accidentally being knocked over Don’t forget that when you need to move something large or cumbersome around the lab a pair of sturdy work gloves may be in order. Most lab surfaces that are heated look the same hot and cold: “Hot Glass Looks Like Cold Glass” Remember to allow proper cooling times on heated elements before work or repair Use caution with heating mantles and hotplates around combustible and flammable materials Use Cryo gloves and eye protection when working with Liquid Nitrogen or dry ice. ◦ Flash Freezing works well on samples ◦ It also can work well on you Dispense and Transport Liquid Nitrogen only with approved methods. Never leave unattended. Keep away from flammable and combustible materials including volatile flammable gases Keep hair tied back and loose clothing away Hearing protection programs can be required under OSHA. Thresholds are set for an 8-hour work day EHS can survey a work area on request. Hazard Classes Storage Use & Handling ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ Oxidizer Flammable Explosive Acutely Toxic Corrosive Compressed Gases Health Hazard Environmental Toxin Exclamation Mark Lab Door Placard SDS Chemical labels Chemical Hygiene Plan SOPs Hazardous Communication (Right-To-Know) Oxidizers and flammables Acids and bases Flammables and corrosives Corrosives and metals Know what to do with strong reactions Segregate incompatibles by storing in different cabinets Use secondary containment when space is at a premium Do ◦ Segregate by hazard class first ◦ Use proper containers ◦ Use secondary containment ◦ Check expiration dates ◦ Inspect shelving and shelf clips periodically Don’t ◦ Stack chemicals or store too high ◦ Allow containers to hang over edge ◦ Use food containers ◦ Allow excessive bench top and fume hood storage ◦ Keep chemicals indefinitely or past expiration dates ◦ Store flammables in unapproved refrigerators Some chemicals are unstable when stored past their expiration dates: Ethyl ether (diethyl ether) Sodium Azide Picric Acid Lab Specific SOPs Chemical Hygiene Plan Chemical Inventory Routes of exposure ◦ ◦ ◦ ◦ Contact Injection Inhalation Ingestion Know the hazards Use Proper PPE Fume Hoods Shields Storage Cabinets Secondary Containment ex. Spill Trays Use a cart with secondary containment Move limited quantities Use caution going through doorways and public areas Use freight elevator Best practice – order from manufacturer Must be authorized to ship haz mat Must give minimum of 72 hours notice Deface old labels when reusing containers Label containers clearly (contents, your name, date) Do not eat or drink in the chemical laboratory. Provide break area outside the lab Clothing Eye Protection Hand Protection Long pants Long sleeves Closed-toe, non-absorbent shoes Protect your clothing with a lab coat or apron The type of eye protection required depends on the work being performed. Wearing the proper eye protection is required by the Laboratory Standard and Personal Protective Equipment Standards. It is the responsibility of the employer to determine the presence of hazards, select and purchase the appropriate safety devices, and train the employees. The employer is not required to provide prescription safety eyewear. Immediately begin flushing the eyes with large amounts of tepid water for a minimum of fifteen minutes. While the eyes are being flushed, medical help should be summoned It’s not measured by distance, but by time 10 seconds For strong caustics/acids equipment should be immediately adjacent to the work area Never neutralize chemicals splashed in the eyes – always flush with water only Never use an emergency eye wash bottle You must never work alone in the laboratory Activate every eyewash at least weekly to verify operation and clear liquid flow Keep areas around eyewashes clear from clutter to provide quick and easy access in the event of an emergency You can eat with false teeth, you can dance with a wooden leg, you can even hear with a hearing aid, but you can’t see with a glass eye. Choose the right gloves for the job Disposable vs Reusable Latex vs other glove materials For non-chemical work Follow manufacturer’s recommendations Not all gloves are the same There is no one perfect glove for all chemicals Gloves to protect you vs. gloves to protect your work Be aware of what you touch with your gloves Remove gloves before leaving lab Never reuse disposable gloves Contamination not always visible 85 decibels sustained over 8 hr work day EHS can monitor noise levels If you need to wear a respirator contact EHS at 4-5084 Gases stored in steel pressure vessels above atmospheric pressure A standard cylinder may hold about 300 cubit feet of the gas in excess of 2000psi What hazards can be present? ◦ ◦ ◦ ◦ They can be very heavy High Pressure Can Conduct Electricity Any chemical hazard Flammable Asphyxiant Oxidizer Toxic Properties & safe use before using SOPs, CHP, SDS Never accept unlabeled cylinders Always store with the valve closed and the cap secured. Secure the upper third of a cylinder with straps or chains to a: ◦ Secure bench ◦ Wall mount ◦ Approved free standing Stand Always Store upright Always bond and ground cylinders of flammable gases. Oxidizer (e.g. Oxygen) cylinder storage must be separated from flammable gas storage areas or combustible materials by at least 20 feet or by a non-combustible wall. Slack chains or straps Excessive storage Protect from high temperatures Do not store in escape paths or near fire exits Compressed gas cylinders must have hydrostatic testing done every 5-10 years, depending on the gas. Do not keep cylinders around for longer than this time period because it prevents this testing. Never roll, drag or slide cylinders, even for short distances. Cylinders should always be moved by using a suitable hand truck with retaining straps or chains Never drop cylinders or permit them to strike each other. Always use regulators and pressure relief devices when using cylinders. Only regulators and plumbing approved for the specific gas should be used. Never use an adapter to make a regulator “work” Open the cylinder valve before adjusting pressure on regulator. Never permit oil, grease, or other readily combustible substances to come in contact with oxygen cylinders, valves or regulators. Never use oxygen as a substitute for compressed air. Do not permit cylinders to come in contact with electrical apparatus or circuits. When returning empty cylinders, close the valve before shipment. Leave some positive pressure in the cylinder. Replace any protective caps originally shipped with the cylinder. Mark the cylinder “EMPTY” and segregate from full cylinders. What a pressurized container can do when the right amount of heat is applied. Remember, a plan is only a plan if it’s on paper. And a paper plan is only as good as the practice put into it. What’s in it for you? What we look for? ◦ ◦ ◦ ◦ ◦ ◦ ◦ PPE use Chemical Storage Labeling Emergency Equipment Hazardous Waste Door Placards Infrastructure Problems Plan, Share, Practice Be a good example NO LESSON IS SO IMPORTANT AND NO TASK SO URGENT THAT WE CAN NOT TAKE TIME TO TEACH, LEARN, AND PRACTICE SCIENCE SAFELY The Laboratory Safety Institute www.labsafety.org Thank you for your patience and attention, Please let me know if there is anything I can help you with to make MSE a safer place to be!