Presentation on theme: "Laboratory Safety Orientation (Lab. Standard 29 CFR 1910"— Presentation transcript:
1 Laboratory Safety Orientation (Lab. Standard 29 CFR 1910 Laboratory Safety Orientation (Lab. Standard 29 CFR ) Prepared by: Mahjoub Labyad, MIS Public Health SpecialistEnvironmental Health & Safety Office
2 Lab Standard US Code, Title 29 CFR 1910.1450 Occupational Exposures to Hazardous Chemicals in LaboratoriesEnforced by OSHAIn Minnesota, by Inspectors from the Dept. of Labor and Industry (MNOSHA)
3 Lab Standard Key Components Maintain Airborne Exposures Below Recognized Exposure Limits.Prevent exposure through skin absorption or ingestionMaintain fume hoods and other control devices.Employee information and training
4 Lab Standard Key Components (Cont.) SOP’s for certain hazardous chemicalsRequired approval for extremely hazardous chemicalsMedical consultation and exam of exposed workers
5 Recognized Airborne Chemical Exposure Limits OSHA (Legally Enforceable)Action LevelPEL’s (Permissible Exposure Limit)8 hr TWA15 min STELCeiling
6 Control of Airborne Chemicals Chemical Substitution of highly toxicsUse small quantities of chemicalsCareful work proceduresWork inside fume hoods (Volatile substances)Use of glove boxes (Highly toxic, carcinogens, or pyrophoric)Use of PPE (Respiratory protection) As a last resort – (too many special requirements)
7 Prevention of Skin Absorption Substitution hazardous for less hazardous chemicalCareful work proceduresUse of appropriate PPE glovesUse of other PPE (lab coat, face & eye protection, etc)
8 Prevention of Inadvertent Ingestion Personal hygiene (wash hands and face)Proper use of glovesNo eating or drinking in labsProper labeling of all containersUse a lab coat to protect personal clothing
9 (check out Fume hood SOP handout) Fume Hoods ManagementChecked annually by EHS OfficeMaintained by Facilities ManagementMagnehelic gaugesVertical and horizontal sashesSash locksLimit clutter, do not block vent openings(check out Fume hood SOP handout)
11 SOP’s RequirementsSafety and health considerations when working withHazardous chemicalsToxic hazardFire or explosion hazardReactivity hazardWhen working with hazardous equipmentSafety precautions should be written into SOP protocol
12 Information and Training Contents and availability of lab Safety Plan (LSP)Signs and symptoms of exposure to chemicalsLocation of MSDS file and how to access individual MSDS’s
13 Information and Training How to detect presence or release of chemicals in lab,Physical and health hazards of chemicalsMeasure to take to protect from exposure to chemicals in the lab,General and research specific safety procedures and SOP’s for working in the lab.
14 Additional Protection Required when working with:Select carcinogens, reproductive toxins, substances with high degree of acute toxicityProvisions required:Designated areaContainment devices (fume hood, glove box)Procedures for safe removal of wasteDecontamination procedures
15 Medical Consultation & Examination Required whenever:Worker develops signs or symptoms of exposure to a hazardous chemicalSpill, leak, or explosion results in likely worker exposureExposure monitoring routinely above action level for an OSHA regulated substance requiring medical monitoring
16 Medical Consultation & Examination Info to PhysicianIdentity of chemical (include MSDS)Description of conditions of exposureSigns and symptoms being experiencedPhysician’ s Written OpinionRecommendation for medical follow-upResults of medical exam and testsEmployee informed of results of exam
17 Key Information on MSDS’s Identification of substance & manufacturerPhysical and chemical propertiesAcute and chronic health hazards including any exposure limitsSigns and symptoms of exposureFire, explosion, and reactivity hazardsSafety precautions when using or storing chemicals
18 Review of Specific Chemical Hazards in Laboratory Type of HazardHealth, Fire, Explosive, CorrosiveChemical, Physical, Biological, RadiologicalMethods of exposure & hazard controlEmergency response actions
19 Physical Hazards in Laboratories Glassware and sharpsTripping hazardsPressure/vacuum generating processesHot processesElectrical hazards
21 Review of Laboratory Layout Location & operation of fume hoodsChemical storage plan/areaLocation of personal protective equipmentLocation & operation of emergency response equipment
22 Operation of Fume Hoods Magnehelic gauges and how to check if hood is operating properly,Use of vertical and horizontal hood sashes & locks,Work 8” to 10” inside hood to contain airborne contaminants,Do not block exhaust vents or clutter inside of hood with excess stored chemicals.
23 Chemical Storage Plan Flammable storage cabinets Other designated flammable and combustible liquid storageAcid storageOxidizer storageChemical waste storageRadio-isotope stock and waste storage
24 Chemical Container Labeling Original container labels should not be defaced,Required label information:Complete name of chemical s(no abbreviations)Date of preparationInitials of preparerHazard warnings, Assume dilutions have same hazards as concentrated material.
25 Personal Protective Equipment Laboratory coats or apronsChemical resistant glovesChemical splash goggles & face shieldsDisposable face masks & respiratorsEar plugs or muffs for noisy environment
26 Emergency Use Equipment Fire ExtinguisherEye Wash/Deluge ShowerFirst Aid SuppliesChemical Spill Cleanup SuppliesEmergency Call List
27 Emergency Procedures Fire or fire alarm Chemical spill Biological or radiological spillChemical exposure incidentPersonal Injury
28 Fire or Fire Alarm Fire Alarm Leave building immediately via nearest exitFire in labRemove/relocate anyone in danger,Activate building fire alarm,Confine/contain fire by shutting door,Extinguish fire only if small and trained to use extinguisher, otherwise evacuate.
29 Chemical Spill Leave spill area, Alert neighbors, Block off entrances to lab, prevent anyone from entering,Report to EHS office at 7273For more detailed information, consult the chemical spill response guide at
30 Radioactive Material Spill Inform others and restrict from area,Use GM instrument to survey self and others who may be contaminated,Remove all contaminated clothing,Call EHS office at 7273Do not attempt to clean up spill, wait for EHS personnel,Consult the Radiation protection page at for more detailed information.
31 Biohazard Material Spill Notify all other lab workers,Restrict access to spill area,Remove contaminated clothing, place in autoclave bag,Call EHS office at 7273Consult the Biological safety page at for more detailed information.
32 Chemical Exposure Incident Immediately flush affected area with eyewash or deluge shower,Flush affected area for 15 minutes,Remove clothing splashed by spill,Relocate to fresh air and check for breathing and pulse,Transport to emergency services with copy of MSDS for treating physician.
33 Personal Injury Administer first aid, Transport to emergency services, Call 911 for serious injuries,Complete “Employee Incident Report” form within 24 hours,Supervisors must complete a “Supervisor Incident Investigation Report” within 48 hours.
34 Experiment Planning Risk Assessment What are the potential hazards?What could go wrong?What will you do if it does?How can risk be minimized?
35 Potential Hazards? Chemical exposures Acute and chronic health effects Exposure limits, volatility, particle sizeAmounts used, how handledProcess flowSkin and eye contact hazardCorrosive/caustic, pH, water reactiveAbsorbs through skin
37 Potential Hazards (Cont.) Fire & Explosion HazardsFlammable vs combustible liquidReactive with air, water, other chemsChemical and physical propertiesFlash point, vapor pressure, LEL & UELBoiling point
39 What Could go Wrong? Fire or explosion Chemical spill Runaway reaction Personal injuryChemical exposureRad or bio exposure
40 Emergency Preparedness Trained in use of fire extinguisher and fire emergency response procedures,Trained in 1st aid and/or CPR,Trained in response to chemical, biological and radiological spillsTrained in response to chemical exposure incidents.
41 Risk Minimization Micro scale experiments, Substitution of hazardous substances,Use of containment devices (fume hood, glovebox, designated area),Safe work practices and procedures,Safety SOP’s,Trained workers,Use of appropriate ppe.
42 Observe General Lab Safety Rules No food or drink in labs,No shorts or open toed shoes,Never throw broken glass or sharps in regular trash,Never throw any chemical down a drain,Do not touch areas marked “radioactive”,Never clean up or touch a puddle on floor unless it is obviously water.
43 General Lab Safety Rules Do not touch items on lab benches or in fume hood. Ask the person who works with them to move them to a safe location,Always read and observe signs/labels“Danger-high voltage”, “poison”, “flammable”, “oxidizer”, “corrosive”, “Radioactive”.
44 General Lab Safety Rules If an item is knocked over or there seems to be a problem with materials or equipment (noise, smell, heat, odd odor, etc) report it to your supervisor, Lab Safety Officer, or the EHS office. Use 911 as necessary.
45 Avoidance of Routine Exposures Develop safe habits,Avoid unnecessary exposure to chemicals by any route,Do not smell or taste chemicals,Inspect gloves and make sure they are correct polymer for the chemical being used,Eliminate or minimize release of toxic substances into air.
46 Working AloneAvoid working alone in labs when using hazardous chemicals or processes,Use a buddy system or,Notify someone in the facility if you must work alone.
47 Hazardous WasteFollow procedures the Hazardous Waste Management website,Label all containers appropriately, use start/end dates,Keep all containers closed,Properly store and separate containers,Package by hazardous class,Prepare and sign waste disposal form.