Fume hoods
Contents
1. i CH DD a He ci 3 Acute toxicity Low mild anesthetic Y gt first a state of mild euphoria a gt followed by somnolence with headaches and nause Hexane Chronical toxicity Well Known in humans gt Extensive peripheral nervous system failure Initial symptoms tingling cramps in the arms and legs then general muscular weakness Suspected of damaging fertility Sicherheit Getundheit und Umweht 1 2 09 201 4 32 Tetrahydrofuran THF O D Penetrates the skin gt rapid dehydration Serious eye irritation Respiratory irritation Greatest danger tendency to form highly explosive peroxides on storage in air gt often inhibitor added in commercial samples gt THF should not be distilled to dryness because the explosive peroxides concentrate in the residue 2GU Sicherheit Gerun 12 09 2014 33 inflammable chemicals Sicherheit Gesundheit und Limweht Danger Inflammable substances can ignite or be ignited and cause fires and burns Model Ignition of gasoline vapors 12 09 2014 34 inflammable chemicals Observations Gasoline vapors are heavier than air gt burning candle ignites them Flame rises up the glass tube SGU 12 09 2014 35 Sicherheit Gesundheit und Ummet inflammable chemicals Explanation Vapors are ignited by an ignition source combustion stops after removal of the ignition2. ETH zurich i de o jaaaj e TN Ei A a Wh How to play i it sale Im a lab Basic Course Dr Silke Kiesewetter SSHE CABS Dr Ines Raabe SSHE CABS Anne K Thomas SSHE Training 12 09 2014 1 Program Main hazards in a chemical laboratory Risk analysis Where to find information Basic rules protective measures Emergencies Questions SGU 12 09 2014 2 Sicherheit Gesundheit und Ummet MAIN HAZARDS I CHEMICAL PRODUCTS Sicherheit Gesundheit und Ummet Chemical products in everyday life at work Chemicals can be found almost get Adler e g cleaning agents AE solvents in batteries in medical products drugs fuels etching of printed circuit boards d matches photography EE SEN 12 09 2014 4 But Chemicals are also hazardous fires burns chemical burns intoxications allergies explosions damages of skin or tissues damage of materials danger for the environment SGU 12 09 2014 5 Sicherheit Gesundheit und Ummet Hazard and safety indications on lab doors SGU 12 09 2014 6 Sicherheit Gesundheit und Umwelt Labels and signs ae Biohazard MSISINg Gas bottles radiation Hazard symbol e g on cans Warning sign e g on doors cabinets black on red white black on yellow i Fire protection signs a SR Rescue sign Obligations e
3. Keep front window closed Fume hood storage place 12 09 2014 12 Fume hoods exhaust front window Sicherheit Gesundheit und Limweht Fume hoods exhaust nn front window Ve AR x Make sure that airflow circulation is not disturbed by large equipment in the fume hood SGU 12 09 2014 14 Sicherheit Gesundheit und Ummet Fume hoods exhaust s front window fe K a pe P Sicherheit Gesundheit und Limweht What is wrong SGU o 12 09 2014 16 Sicherheit Gesundheit und Limweht Glove box What is a glove box Sealed container to manipulate compounds objects in a separate atmosphere Objects substances have to be introduced into and removed via an air lock When working in a glove box To work with hazardous substances in a specially filtered atmosphere To manipulate substances in an inert gas atmosphere e g argon nitrogen a Be E a Sicherheit Gesundhe it und Urerwelt 12 09 2014 17 Laminar flow box Room air is sucked in the laminar flow box and filtered e g HEPA filtration gt creation of a sterile atmosphere Laminar flow reduces turbulences of particles present in air and discharges them downward Recirculation of air within the box to the room SGU 12 09 2014 18 Sicherheit Gesundheit und Ummet Laminar flow box When working in a laminar flow box box Ne
4. Never do risky work alone eo urce http de wikipedia org amp FI a Sicherheit Gesundheit und Limweht Overnight SGU Sicherheit Gesundheit und Ummet Machttafel Overnight Experiment Stab SGU ETH Zurich Nachttafel fur Experimente Overnight Experiments Gebaude und Raumnummer Building and room number Datum und Uhrzeit date and time Verantwortliche Person und Stellvertreter responsible person amd deputy Name private Telefonnummer name private phone number Experiment Reaktion eXperiment reaction Beschreibung Geeignete L schmittel o Wasser o Kohlendioxid CO Suitable extinguishing agents Water carbon dioxide CO Notfallmassnahmen Emergency measures Datum und Unterschrift date and signature 12 09 2014 99 STOP Personal protective equipment Lab coats Protection of lab personnel environment and samples Mandatory in all micro biological and chemical labs and when handling hazardous substances e g liq N special waste etc Not allowed at desk in cafeteria in offices etc PRM AND PROPER WWW PHDCEOMIE S COM To be washed regularly for laundry service In biosafety labs level 2 contact SSHE disinfect after contamination SGU 12 09 2014 101 Safety goggles Oe Protection of lab personnel Mandatory when Risk of splashes aerosol production dust production Spill cleanup Handling che
5. Get hr iche Stoffe und was man dar ber wissen muss Suva Bsstelnummer 11090 Sichermeitszeichen Suva Bastelnummaer 58101 d fan si ua omy Mar IET ka Dass Tokion Cel tid b kr Tei de iT 3 Fatakseee 549 Zeg Gr er Preis E L ie eegen L ja aufbewahrt we 5 totlwerse mungen Gas sch nein gekennzeichnet Es st m glich Gass in Ihrem Batriab noch wettere Getahren zum Thema dieser Checkliste Destehen Ist dies Ger Fall tretian Sie de notwendigen Massnahmen seine Ruckseitel 12 09 2014 79 Where to find information on specific hazards Machines equipment gt users manual supplier Laboratory hazards gt ETH safety manual new version under construction gt DGUV Working Safely in Laboratories Basic Principles and Guidelines http ogi850 0 vur jedermann de index sp gt ETH SSHE factsheets guidelines concepts http www sicherheit ethz ch docs index rheit Gesundheit und Ummelt 12 09 2014 80 Where to find information on chemicals On the product label on the bottle can Inthe MSDS Material Safety Data Sheet Substance production company e Personal protective equipment PPE Detailed contents e Physical and chemical properties Possible hazards e Toxicology First aid measures e Ecotoxicology Fire fighting measures e Transportation Handling and storing e Legal aspects SGU 12 09 2014 81 Sicherheit Gesundheit und U Where to fin
6. SGU 12 09 2014 55 Sicherheit Gesundheit und Umwelt source BG RCI E 1 Ni d Eau u E eg What e wrong 12 09 2014 56 SGU rheit Gesundheit und How to store gas cylinders in a laboratory 12 09 2014 57 Sicherheit Gesundheit und Limweht MAIN HAZARDS IN m PHYSICAL HAZARDS ETC Other common hazards in a chemical lab Sicherheit Gesundheit und Limweht Lasers Heat sources Magnetic fields Biological agents pathogens GMO Centrifuges High voltage power current Vacuum or high pressure Sharps and glassware 12 09 2014 60 Laser non ionising radiation 4 Classes Class 1 Safe under all conditions of normal use Class 2 Visible light lasers Fairly safe blink reflex will limit the exposure to no more than 0 25 seconds if not viewed through optical instruments Sicherheit Gesundheit und Umwelt 12 09 2014 61 Laser non ionising radiation Class 3 R Is considered safe if handled carefully with restricted beam viewing The maximum permissible exposure can be exceeded low risk of injury Class 3B m us If the eye is exposed directly in some cases it can be hazardous for the skin SGU Sicherheit Gesundh eit ured D source www dresden forscht de index php id 49 12 09 2014 62 Laser non ionising radiation Class 4 Can cause permanent eye damage and burn the ski
7. Vapors can ignite sources and flash back Static discharge may ignite acetone vapors SGU 12 09 2014 27 Solvents Danger Damage of material or deleterious effects on skin Model Acetone on Styrofoam with and without protective hand cream i SGU 12 09 2014 28 Sicherheit Gesundheit und U Solvents yy O Acetone immediately attacks the Styrofoam chip Observations The Styrofoam chip protected by hand cream remains almost undamaged Consequences Skin protection and care comprises gt Use of hand cream gt Use of gloves SGU 12 09 2014 29 Sicherheit Gesundheit und Umwelt Metabolized to hydrogen cyanide Acetonitrile C C N H gt the onset of toxic effects Is delayed about 2 12 hours Symptoms breathing difficulties slow pulse rate nausea and o e ee SC products _id 1810 vomiting Serious cases Convulsions and coma followed by death from respiratory failure source http www hoio ch index php id 1103 SGU 12 09 2014 30 icherheit Gesundheit und U Dichloromethane DCM T High volatility Metabolized to carbon monoxide gt eventually CO poisoning Acute exposure by inhalation gt optic neuropathy hepatitis Prolonged skin contact gt possibly dissolving of the fatty tissues in skin gt skin irritation or chemical burns N DCM mig SGU 12 09 2014 31 Sicherheit Gesundheit und Limweht
8. 92 A SS a Ki I A m SE D STOP Organisational measures Labels signs gt Hazard symbols warning signs obligations E access restriction available from the SSHE gt Employees have to know what they mean and how to behave gt Use signs when necessary but never warn of N non existing hazards 12 09 2014 93 Sicherheit Gerun Lab safety some general rules Entrance only for people working in the lab No food and drinks in the lab Disorder amplifies the risk gt keep your working source http nobel scas bcit ca area clean debeck_pt science safety htm Never do risky work alone gt there must always be a second person in the same room Hot things often look the same as cold things gt be careful Experiments running over night gt secure all media cooling water etc SGU 12 09 2014 94 icherheit Gesundheit und U Lab safety some more rules Wear appropriate clothing gt long trousers robust and closed shoes hand eee hale RT I thought there fi was room for interpretation gt Yi Fe Wear appropriate PPE safety St Vie u glasses lab coat etc Sicherheit Gesundheit und Umwelt 1 2 09 201 4 95 Disorder amplifies the risk TL S U 12 09 2014 96 Sicherheit Gesundheit und Limweht Risky work SGU Sicherheit Gesundheit und Limweht 12 09 2014 97
9. Acids Bases Mercury Chlorinated solvents Non chlorinated solvents gt The smellier the waste the more it needs to be collected separately u 2GU 12 09 2014 44 Disposal of hazardous waste CNB E 146 Wednesday 9 11 am Contact rel martin frei ethz ch HCI D 276 er Ce Monday Friday 2 4pm Game Zenteum Contact er guido krucker ethz ch HPL D 15 2 Each first Tuesday of the month 9 11 am Contact Science City Campus H nggerberg SGU 12 09 2014 45 Sicherheit Gesundheit und Ummet U 12 09 2014 46 Sicherheit Gesundheit und Umwelt source http sorachstammtischemuenchen blog latest news all blog posts U 12 09 2014 47 Sicherheit Gesundheit und Ummet Apparently harmless substances really harmless gt inherent dangerous Example 1 Nitrogen N The air consists of almost 80 nitrogen Nitrogen is not flammable not toxic odorless gt absolutely harmless z source BG REF Sicherheit Gesundheit und Umwelt 1 2 H 09 20 1 4 48 Liquid nitrogen Danger Apparently harmless substances gt Risk is underestimated 4 Model Rose in liquid nitrogen J d S 12 09 2014 49 Liquid nitrogen Observations The rose cracks after removal from the liquid nitrogen bath 196 C Even very cold substances can be liquid gt cryogenic liquids Consequences gt Avoid direct
10. for working safely in the lab gt Check or refresh your knowledge E learning modules Gefahr im Griff SUVA covering different subjects e g How to deal with risks Personal protective equipment Hazardous substances GU 12 09 2014 127 SSHE course calendar cryogenics and gas cylinders biosafety laser seminar radiation protection disposal of hazardous waste WISSENS working with nanoparticles DURST La risk assessment hazard analysis Be ergonomics fire fighting training SGU 12 09 2014 128 Sicherheit Gesundheit und U ETH zurich APE FEIL k A e P be k Br Dim Thank you for your attention SGU 12 09 2014 129 Sicherheit Gesundheit und Lenert ETH zurich ane En APE FEIL k Pe e Questions SGU 12 09 2014 130 Sicherheit Gesundheit und Umwelt
11. from heat sources Beware of secondary hazards e g Laser beam open gas source http www dechema de Presse Pressemitteilungen Archiv 20 08 42 2008 html un 2 GU 1 2 09 201 4 68 Magnetic fields Hazardous effect depends on the strength of the magnetic field Field description Restrictions intensity no access for 0 5mT 5G Maximal field authorized for public Public wearers of wearers of pacemakers or pacemakers or implants implants pregnant women pregnant women 3mT 30G Field starting from which Any ferromagnetic object ferromagnetic objects can be e g tools dragged by the field 0 2T 2kG Field starting from which the Any except with medical D access is unauthorized without recommendation medical recommendation SGU 12 09 2014 69 Sicherheit Gesundheit und Ummet Magnetic fields fa Sr Protective measures H Mark the dangerous zone L SE _ line on the ground Sa O Keep out if you are not authorized Warning signs prohibitions u GU 12 09 2014 70 Implosion Protective measures shielding windows safety glasses etc Never evacuate cylindrical or cubic glassware only round flasks Make sure that equipment is vacuum proof 12 09 2014 71 Pe High pressure Hazard depends on physical condition 200 bar liquid e g HPLC less hazardous than 200 bar gas pressure e 9 N gas bottle Make sur
12. gt you re not safe at all check compatibility wndheit und Umwelt 12 09 2014 105 Which glove is the best Bad news the one and only perfect glove does not exist Good news there are suitable gloves for almost every kind of chemicals It all depends on which substances you work with Be careful with latex natural rubber NR gloves they can cause severe allergies gt not recommended SGU 12 09 2014 106 Sicherheit Gesundheit und U How to find suitable gloves DIN EN 374 Degradation Resistance swelling Penetration Macroscopic penetration via seams holes Permeation Molecular penetration of gloves breakthrough time min h SGU 12 09 2014 107 Sicherheit Gesundheit und Ummet Certification of gloves e Test substance Compound class A Methanol B C D E F G H Sicherheit Gesun Acetone Acetonitrile Dichlormethane Carbon disulfide Toluene Diethylamine Tetrahydrofurane Ethylacetate n Heptane Sodium hydroxide 40 Sulfuric acid 96 SGU dheit urd U EN 3 43 Primary alcohols Ketones Organic nitriles Chlorinated paraffines sulfur containing organic compounds Aromatic hydrocarbons Amines Heterocycles and ethers Esters Aliphatic hydrocarbons Inorganic bases Mineral acids 12 09 2014 108 Certification of gloves Protective level according to DIN EN 374 1 class class class class class class
13. have to wear one Doesnt protect against chemical vapors or toxic gases Doesnt protect against lack of oxygen Doesnt replace a fume hood Surgical masks dust masks SGU 12 09 2014 117 Sicherheit Gesundheit und U Dust Masks Surgical face mask no FFP class Filter classes 3 classes according to European standard EN149 2001 2009 Penetration limit Inward leakage rate 95L min air flow FFP1 gt 80 lt 22 FFP2 gt 94 lt 8 FF P3 gt 99 lt 2 Make sure the dust mask suits you not only filter class is important FFP 3 different mask types SGU 12 09 2014 118 Sicherheit Gesundheit und U EMERGENCIES ACCIDENTS What to do in case of an accident First aid zip bags Eye showers Emergency showers ETH first Unfall was tun 1 Verletzungsart mmer Alarmieren Kind of injury gt Call S 0 5 i Schwerer Unfall Se Severe accident 0 144 V Vergiftung l Poisoning 0 145 u A 2 Nothilfe leisten ABC LT First Aid ABC Alle Notf lle All emergencies 888 ETH Z rich Abt Sicherheit safety su ethz ch www sicherheit ethz ch 12 09 2014 120 Eye showers D 12 09 2014 121 Emergency numbers ETH Alert Center 24 7 intern 044 342 1188 mobile or external External intervention 0 118 fire brigade 0 144 ambulance 0 117 police Intoxication
14. processes can carry inherent dangers how can know which substances and processes are harmless and which ones are not which kind of dangers play a role with which substances where to find further information how to protect me and others trom these dangers SGU 12 09 2014 77 Sicherheit Gesundheit und Ummet RISK IDENTIFICATION WHERE TO FIND INFORMATION For standard procedures Checklists All important issues to be checked on one list For general procedures and hazards available from the SUVA Sicherheit ist hbar Checkliste S uren und Werden in Ihrem Betrieb die wichtigsten Sicherheitsmassnahmen eingehalten die es beim Umgang mit S uren und Laugen zu beachten gilt Die Hauptgefaihren beim Umgang mit S uren und Laugen sind zungen Mit dieser Checkliste bekommen Sie diese Gefahren bosser in den Gg suvaPro Sicher arbeiten Deier mme 670M 3 SGU Sicherheit Gesundheit und Ummet 10 Werden die Installationen f r die Erste Hilfe iz B Augen und K rpardusch Joep und m Folgenden finden Sie eine Auswahl wichtiger Fragen zum Theme dieser Checkisto Solte eine Frage K r Pren Betrieb nicht zutreflen streichen Ste diese einfach weg Wo Sie eine Frage mit x nein oder X teitweise beantworten ist eine Massnahme zu treffen Noltleren Sio de Massnahmen auf der Fl ckzeiti 1 Verfugen ale Boruche st ity Betrieb im D
15. 0 145 Tox Center How to alarm Who is calling What did happen Where did it happen When did it happen Who is involved How did it happen 7 un ir i E E EN m Gu On a The plumber asks if it is sufficient when he is coming tomorrow afternoon SGU 12 09 2014 123 The first priority is always YOUR OWN SAFETY How to behave in case of a lab accident Stay calm make sure your brain is in gear I Call 888 ambulance fire brigade Take safety measures for injured persons emergen services not directly involved persons Apply first aid and observe the injured person if possible Wait for ETH first aid team Give necessary information to internal and external emergency services but to nobody else Do not walk around gt avoid diversion of contamination GC Do not clean the area where the accident happened gt might be evidence e d Aw rE SGU 12 09 2014 124 r gea Zen z uf Sicherheit Gesundheit und U What to do in case of fire Fire button gt alarm Fire fighting equipment in the corridors Extinguishers Sicherheit Gesundheit und Limweht Feuer was tun Fire how to react Alle Notfalle All emergencies 888 12 09 2014 125 Fire extinguishers SGU 12 09 2014 126 Sicherheit Gesundh eit ued Ummweht After this seminar are you an expert
16. ck for safer procedures M gt e g DrySyn instead of oil bath KOZ SGU 12 09 2014 88 Sicherheit Gesundheit und Limweht STOP Strategic measures Check for hidden secondary hazards gt e g laser class 4 produces not only light but might also cause fire Preferably use small quantities of chemicals gt e g small scale reactions large scale only with optimized parameters SGU 12 09 2014 89 Sicherheit Gesundheit und Ummet STOP Technical measures Separate work areas gt some work e g radioactivity biohazard need special labs Gas detection gt when working with hazardous gases or liq N depending on quantity gt contact SSHE Sicherheit Gerun errr rrr rar 2 12 09 2014 90 STOP Technical measures a ai 4 i Shielding Spe Di gt e g shatter protection shields lead shields for gamma radiation Ventilation fume hood local exhaust ventilations gt no hazardous work in non ventilated areas gt handling harmful chemicals soldering SGU 12 09 2014 91 Sicherheit Gesundheit und Ummet STOP Organisational measures Instruction training SOP s gt Mandatory supervisor is responsible for instruction training employees have to work according to them gt Also for students visitors maintenance personnel etc gt Set up SOP s for specific procedures TEP 2 12 09 2014
17. contact to cryogenics also to tubing In gt Wear safety glasses and special gloves ethz ch phys dep dienste 12 09 2014 50 Liquid nitrogen Yet another danger 1 Liter of liquid nitrogen EK gt about 700 liter of gas EDER Displaces oxygen O from the air content of O in the air What happens ca 21 Normal ambient air lt 16 Expired air Loss of performance lt 11 Fire gets extinguished lt 10 Sudden loss of consciousness lt 6 8 Death by asphyxiation SGU a nee mee 18 Sicherheit Gesundheit und U Apparently harmless substances really harmless gt inherent dangerous Example 2 Compressed Air SGU 12 09 2014 52 Sicherheit Gesundheit und Ummet Gas cylinders Danger Underestimation of secondary hazards Model Valve of compressed air cylinder breaks SGU 12 09 2014 53 Sicherheit Gesundheit und U Gas cylinders Consequences gt Use personal protective equipment gt Avoid heat sources next to gas cylinders gt Secure gas cylinders against falling gt Always use the correct pressure reducing valve gt When not in use safety cap gt Never use brute force when handling valves gt Never lubricate valves gt Label empty and defective cylinders gt SSHE seminar Cryogenics and gas cylinders 2GU 12 09 2014 54 Sicherheit What s wrong source BG RCI
18. d information on chemicals Online databases gt e g GESTIS also available as Apple and Android app For non commercial new chemicals scientific publications sometimes SGU 12 09 2014 82 Sicherheit Gesundheit und Ummet DEALING WITH HAZARDS SAFETY MEASURES Dealing with hazards minimization of risks Before the experiment Check and consider safety instructions Define exactly the work flow and procedures Check experimental setup SGU 12 09 2014 84 Sicherheit Gesundheit und U Minimization of risks During the experiment Apply safety measures Use protective equipment Protect people environment and values SGU 12 09 2014 85 Sicherheit Gesundheit und Ummet Minimization of risks After the experiment Clean up your workplace RE NR before you act sort recycle your waste In case of doubts Turn off all media cooling water electricity gas etc or questions contact an expert 12 09 2014 86 Sicherheit Getundhei Dealing with hazards The STOP concept Strategic measures UM ped j zt A Technical measures d Si Organizational measures gi Personal 7 protective equipment Bu seg199 Ade91jj9 12 09 2014 87 STOP Strategic measures Check if there are less hazardous products available Substitution gt e g heptane or pentane instead of hexane Che
19. droxide NaOH Can decompose proteins and lipids in skin eyes gt chemical burn Dissolution of solid NaOH gt exothermic resulting heat can cause heat burns or ignite flammables Exothermic reaction with acids Corrosive to some metals e g Al gt produces flammable H gas Sicherheit Gesundheit und Ummet i A aa ET T GEN d oy CS Lige Tote ie e i Ae G Ae R j GEZ A in KS HM Wi KS zeg bes S e CH A A hi ze Zei W re Ca DE a 12 09 2014 24 Ammonia HON Characteristic pungent smell H Irritating caustic effects on eyes and skin Easily resorbed through the skin Inhalation gt irritating harmful effects on the respiratory system acute effect gt respiratory disorder chronic effect OOD Oral incorporation gt severe damages of the digestive tract Pungent smell first warning Poisoning with ammonia occurs seldom 12 09 2014 25 Sicherheit Gesundheit und Ummet Solvents acetone acetonitrile dichloromethane ethanol ethyl acetate hexane tetrahydrofuran SGU 12 09 2014 26 Sicherheit Gesundheit und U O Acetone Jk Degreases the skin H3C CH3 Only slightly toxic in normal use Most hazardous property extreme flammability Temperature greater than flash point gt air acetone mixtures 97 5 2 5 vol 87 2 12 8 vol may explode or cause a flash fire
20. e that equipment is high pressure proof Reactions procedures with more than 10 bar gas pressure gt SGU 12 09 2014 72 Sharps Syringe needles scalpels Replace sharps if possible Injuries Potential source of contamination with chemical biological infectious radioactive material Needle stick injuries Often occur when recapping needles Never recap syringe needles immediately dispose of syringe and needle Never place any sharps in the ordinary trash bin Common causes for lacerations Picking up contaminated pieces of broken glassware Working with damaged glass equipment 12 09 2014 73 Special sharp containers Always use a properly labeled special sharps container unbreakable puncture proof sealable Place sharps container within easy reach Don t walk around when carrying sharps Dispose of sharps immediately after use Dont overfill sharps container Seal it when it is full and take it to the hazardous waste disposal station Sicherheit Getundhe it umd Umwelt 1 2 09 201 4 74 Sharps contaminated with infectious material Have to be inactivated before disposal gt collect in autoclavable sharps containers gt autoclave gt dispose SGU 12 09 2014 75 Sicherheit Gesundheit und Ummet What is wrong SGU Sicherheit Gesundheit und Ummet 12 09 2014 76 If even apparently harmless substances and
21. ed of a sterile atmosphere gt often biological work gt biosafety cabinets Need of a dust free atmosphere gt optics gt analytics gt electronics source http zocker0815 npage de gedanken html SGU 12 09 2014 19 Sicherheit Gesundheit und Ummet Acids and Bases NaOH KOH Ca OH 2 NH3 H3CNH2 12 09 2014 20 Chemical burn Danger Acids can cause chemical burns on the skin Model Nitric acid on meat with and without protective gloves Sicherheit Getundheit und Umweht 1 2 09 201 4 21 Chemical burn Observations The piece of meat turns immediately white when it gets in contact with the acid gt chemical burn The piece of meat protected by a glove isn t chemically burned Also the glove remains intact Consequences gt Wear gloves and safety glasses gt Work in a fume hood u Sicherheit Gesundhe it und Urerwelt 12 09 2014 22 Sicherheit Ges Hydrofluoric acid HF Highly corrosive liquid Strong contact poison Chemical burn of lower tissue layers even bones symptoms of exposure may not be immediately evident gt interferes with nerve function gt initially chemical burns May DO ito inw glasmalerei deltechniken aetzen be paintul aetzen 1 index html gt accidental exposures can go unnoticed As a rule a burn the size of your palm is fatal 40 HF SGU 12 09 2014 23 undheit und U Sodium hy
22. es Unterlagen die Uber d NIEREN cor D B Schoots Horstalior und Listoran Werden die S uren und Laugen in na k nstlich beldfteten R umen und unter V r schluss gelagert Werden S uren und La ayer soe Stoffe Ge bel aittaligem Kontakt miteinander n gef hrlicher Weise raagieren k nnen Grtiich oder r umlich oe Oe E Wird die Befoigung der vorgeschriebenen Schutz massnahmen und Vorheltersegel etzien berwacht und n tgentalis Anlagen und Einrichtungen Schutzausr stungen 16 Stohen zum Ab und Umf llen von S uren und Wird teufend berpr ft S uren und Laugen m gliche osf hrliche Stoffe orsetror lass r n in denen das Tragen pars ni yeschnaben ist mit Sicherheits so Pflicht hingewiesen Weszsichen Augenschutz benutzen 1720 2 Laugen Qeeignete Vornchtungen wie Handpumpen d Halonkipper zur Vertugung Sind zum Transport von S uren und Laugen gesigreita Miturmittal wie Sicherheitsbwh lter und Fas karron vormanden Sind fur das Autsaugen und Entsorgen az ve hitteter S uren und Laugen gesignets ma wrmarden Rohrleitungen die zur FOr J Laugen dienen gem date a tahr ag kr hen e sen Se Fragen Auien Fa ana in ka comico Ta Gii did i 19 J gang mit S uren und Laugen pers nlich Schutzmittel wie Scnutzbr Ater z EKAS F chtinie Sauren und Laugen Bestelnummer 6501 Chemische Stoffe m Baugewerbe Suva Bestelinummer 44013
23. g on doors machines White on blue SGU 12 09 2014 7 Sicherheit Gesundheit und U Signs on Cabinets SGU 12 09 2014 8 Sicherheit Gesundheit und U lt irritating narcotic corrosive Ve allergenic explosive gas under Y harmful for pressure environment 18 MT harmful chronic toxic oral toxicity CMR dermal inhalative flammable Source pictures BG RCI SGU 12 09 2014 9 Sicherheit Gesundheit und Unwelt Fume hood glove box laminar flow box source http www waldner lab de de service galerie fotos aspx source http en wikipedia org wiki File Glovebox jpg SGU source http ssfp unileoben ac at Laminar htm Sicherheit Gesundheit und Limweht 12 09 2014 10 Fume hoods Why working in a fume hood Prevent toxic harmful or corrosive gases vapors dust particles aerosols etc from spreading into the ambient air Prevent formation of explosive gas mixtures inside a fume hood Protection against splashes and splinters When working in a fume hood When conducting experiments procedures which might release harmful or hazardous gases vapors dust and aerosols Sicherheit Gesundhe it umd Umwelt 12 09 2014 1 1 Fume hoods Some basic rules Sicherheit Gesundheit und Limweht Check fume hood is ON with a piece of paper Only work in laboratory scale Always wear safety glasses labcoat and gloves
24. micals including solvents or cryogenic liquids 5 Working with lasers class 3B and 4 safely aMagles Cutting glass we fOr Gers Don t wear contact lenses not even in combination with safety goggles gt When 1 person is doing such work in the lab all others must wear safety goggles too SGU 12 09 2014 102 Sicherheit Gesundheit und U Safety goggles Optically corrected safety glasses can be obtained via SSHE Normal glasses don t replace safety goggles SGU 12 09 2014 103 Sicherheit Gesundheit und U Gloves O Sicherheit Ges wear gloves all the time Know only too well how my RN Protection of lab personnel environment and samples Regularly check and replace re usable gloves never re use single use gloves Mandatory when contact with hazardous substances or pathogenic material cannot be excluded handling cryogenic liquids liquid N2 etc or dry ice gt Replace gloves after max 2 h wash hands and use hand cream SGU 12 09 2014 104 undheit umd UW Gloves ikherheit Ges What It is only a widely spread superstition that a latex skin of 0 1 mm protects me against chemicals as reliably against infections To be removed before Working at desk office space Touching computer keyboards Touching door handles telephones etc Leaving the lab Chose the appropriate glove for your work wrong gloves
25. n as a result of direct or diffuse beam viewing May ignite combustible materials and thus may represent a fire or explosion risk Wear protective eyewear SGU 12 09 2014 63 Sicherheit Gesundheit und U Laser Labelling Warning sign Indication of laser class and instructions SGU 12 09 2014 64 Sicherheit Gesundheit und U Additional labelling laser classes 3B and 4 Laser data Laser medium Wave length Duration of emission Radiation efficiency Radiation energy Warning lamp in front of the door DON T ENTER a source http www goebel laser de html warnen html source http www laser2000 de index php id 370356 aa GU 12 09 2014 65 Heat sources in a lab Sicherheit Gesundheit und Limweht open fire Bunsen burner hotplate sand bath oil bath light sources Lasers light bulbs 12 09 2014 66 Heat sources in a lab AN re Basic rules Sicherheit Gesundheit und Limweht Don t touch hot surfaces this rule seems to be quite obvious but Hot surfaces look the same as cold surfaces gt mark them with a warning sign Check electric installation temperature control etc regularly source www semadeni com 12 09 2014 67 Heat sources in a lab Some more rules Caution no water near oil bathes gt preferably use DrySyn systems Keep flammables and gas cylinders away
26. oF N 6 breakthrough time gt 10 min gt 30 min gt 60 min gt 120 min gt 240 min gt 480 min source http www mercateo com protective level of at least class 2 reached by 3 of the 12 test substances gt glove is deemed to be resistant against chemicals Sicherheit Gesundheit und Umwelt 12 09 2014 109 Sicherheit Gesundheit und Limweht Breakthrough time on beste ken PL gEg EE Latex Latex Chloroprene Butyl Viton cautchouk Acetaldehyde Acetonitrile enzene Acetone O W w a a lt D O O p O L hloroform Cyclohexane Dichlormethane Diesel fuel Diethyl ether Quelle http userpage chemie fu berlin de tlehmann handschuh html SGU 12 09 2014 110 Sources of information Material safety data sheet MSDS Gestis database http www ansell be http kcl de htto www arbeitssicherheit brose de Sicherheit Gesundheit und Umwelt 12 09 201 4 1 1 1 Acetone MSDS protection of hands Wear protective gloves Material of gloves Butylcaoutchouc thickness 0 mm The selection of the suitable gloves does not only depend on the material but also on further marks of quality and varies from manufacturer to manufacturer Penetration time of glove material Value for the permeation Level 2 6 The exact breakthrough time has to be found out by the manufacturer of the protective glove
27. s and has to be observed As protection from splashes gloves made of the following materials are Suitable Natural rubber SGU 12 09 2014 112 Sicherheit Gesundheit und U How to remove gloves SGU 12 09 2014 113 Sicherheit Gerun Respiratory protection Respirators gas filters VS Dust mask particle filters SGU 12 09 2014 114 Sicherheit Gesundheit und Ummet Respirators MANCHMALHASSE ICH MEIDEN JOB Mandatory when risk of toxic gases or chemical vapors smoke ID g h d All potentially exposed people have to wear one 2 Types Dependent on circulating air Independent of circulating air ROGER WWW KARIKATUR CARTOON DE Zo AN Keim mg Origina Artic CHRIS mapperReproduction rights obtainable trom wi CartoonStock corm Sicherheit Gesundheit und Umwelt 12 09 2014 115 Respirators Masks dependent on circulating air A Full face masks B Half masks source http www ritz arbeitsschutz de industrie atemsc hutzmasken halomasken index ht ml source http www pps vertrieb de maske sfera ine Een silikon vollmaske htm markenshop com source http www schutzbusshop de Moldex Halomasken Set 8982 mit A1B1E1K1 P3 R D Filter SGU 12 09 2014 116 Sicherheit Gesundheit und Ummet Dust Masks Some basics Mandatory when risk of hazardous dusts aerosols All potentially exposed people
28. source Combustion point Vapors are ignited by an ignition Ignition point source continue burning after removal of the ignition source Vapors ignite spontaneously 12 09 2014 36 inflammable chemicals Explosive mixtures ESS LEL H UEL vol no more explosive upper explosion limit UEL ether 36 0 ethanol 3 4 15 0 gasoline 0 6 8 0 hydrogen 4 0 75 6 cone GU 12 09 2014 37 No smoking SGU 12 09 2014 38 Sicherheit Gesundheit und Ummet No food and drinks in a lab rs w Taha _ u a DI x 12 09 2014 39 Sicherheit Gesundheit und Umwelt What is wrong SGU 12 09 2014 40 Sicherheit Gesundheit und Ummet What is wrong SGU 12 09 2014 41 Sicherheit Gesundheit und U What is wrong Gef hrliche Stoffe niemals in Getr nkeflaschen Gefahrenpiktogramme beachten e Gef hrliche Stoffe in Originalverpackung aufbewahren Niemals in Lebensmittelbeh lter umf llen Ge nn he Stoffe Be stelin nummer 11030 d Sa er U 12 09 2014 42 Sicherheit Gesundheit und Limweht Disposal of normal waste Minimize waste Separate waste Paper and cardboard Glass and bottles PET Metal Electrical waste Used CD DVDs sic _2GU 12 09 2014 43 Disposal of hazardous waste Minimize waste Use official containers Separate waste
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