nmrlabsafetye

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NMR laboratory safety Organic Chemistry, Hebrew University: 

NMR laboratory safety Organic Chemistry, Hebrew University Tutorial presentation according to the safety at work ordinance 2001 Disclaimer: This presentation is intended for use by users of the Organic Chemistry Department NMR laboratory of the Hebrew University for safety instruction in that laboratory only. No responsibility can be accepted if used for other purposes.

General: 

General Do not eat or drink in the laboratory

General: 

General Do not eat or drink in the laboratory Do not smoke in the building (not recommended at all) Do not work alone Place sharp and contaminated waste in the appropriate bin under the sink Regular bin Sharps bin. Place the waste in the bin – not as photographed Waste bins

General: 

General Do not eat or drink in the laboratory Do not smoke in the building (not recommended at all) Do not work alone Place sharp and contaminated waste in the appropriate bin under the sink Report all chemical spills or dangerous occurrences to the staff (Roy and Yair)

Magnets: 

Magnets There are very strong magnets in the laboratory that present special dangers 400 MHz 500 MHz Coming soon

Slide6: 

Magnet Danger zone Close to the magnet Danger zone close to the magnet NMR lab Exit “Close to the Magnet” – especially dangerous

Do not enter: 

Do not enter If you have a pacemaker Certain types (ferromagnetic) implants or shrapnel Neurostimulators If in doubt – stay out Until you consult with the staff (Roy & Yair)

Do not bring metallic objects close to the magnets or preferably not into the laboratory: 

Do not bring metallic objects close to the magnets or preferably not into the laboratory They are liable to fly towards the magnet and injure anyone in the way Someone has already been killed by a gas bottle flying into a magnet Gas bottle in an MRI

Do not bring metallic objects close to the magnets: 

Do not bring metallic objects close to the magnets Gas cylinder Work tools Mobile phone Magnetic card

Do not bring magnetic media, mobile phones, analog watches or guns near the magnet: 

Do not bring magnetic media, mobile phones, analog watches or guns near the magnet

If the magnet quenches: 

If the magnet quenches Quenches are rare but you need to know what to do You may hear a hiss from the magnet You may see a heavy cloud covering the ceiling and the low oxygen alarm may go off The symptoms of lack of oxygen include dizziness, drowsiness, nausea, vomiting, excessive salivation, reduced alertness, unconsciousness and death Leave the room (by the regular exit or by the window) Report it to the laboratory staff Do not return to the laboratory until you get permission from the staff Danger of suffocation Photo: Kyryl Kobzar Escaping through the window Exit Emergency exit Emergency exit

This is how a quench looks: 

This is how a quench looks Photo: Kyryl Kobzar

Emergency electricity shutdown: 

Emergency electricity shutdown A laboratory power shutdown button will be installed here shortly. In the meantime you need to shutdown the electricity at the cabinet in the room. Turn the knob to shut off power except for spectrometers and lights. Turn off these two switches to disconnect the spectrometers. Use the regular light switch to turn off the lights. Shutting off the electricity does not switch off the magnets The power shutdown for the whole floor does not shut down the spectrometers Power shutoff for the spectrometers General power shutoff (not spectrometers) In case of electrocution or fire Opening the cabinet

In the case of fire or alarm: 

In the case of fire or alarm IF IN DOUBT GET OUT! Fire! – sound the alarm Leave the building (low oxygen alarm – just from the lab) by the regular exit by the windows that open inwards do not open the windows except in emergency Alarm button Escape through the window Fire hose Exit Emergency exit Emergency exit Non-magnetic extinguisher Soon to be installed an alarm button Alarm buttons

In case of fire - extinguisher: 

In case of fire - extinguisher IF IN DOUBT GET OUT! If the fire is small, use The extinguisher in the lab Do not bring another extinguisher into the lab Non-magnetic extinguisher Fire hose Exit Emergency exit Emergency exit Non-magnetic extinguisher Soon to be installed an alarm button

In case of fire – fire hose reel: 

In case of fire – fire hose reel IF IN DOUBT GET OUT! Before using the fire hose reel Shut down all the electricity (including UPS, see above) Get help (it needs 2 people) Do not use on burning liquids* or alkali metals At all times stay alert and keep an escape route open Open the main tap Unreel the hose *Experienced firefighters have techniques for extinguishing flammable liquids with a fire hose but if you have not learnt and practiced these methods you will make matters worse. Fire hose Exit Emergency exit Emergency exit Non-magnetic extinguisher Soon to be installed an alarm button

In case of fire – fire hose (contd.): 

In case of fire – fire hose (contd.) IF IN DOUBT GET OUT! From maximum distance, point at base of fire and use jet, keeping out of smoke and steam Once the fire is nearly out, switch to spray and approach it After the emergency is over, close the main tap and discharge the hose Jet Spray Spray Jet

Safety equipment: 

Safety equipment Wear safety glasses Use appropriate gloves when you are exposed to chemicals Remove all your chemicals when you finish work, return laboratory chemicals to the cupboard and lock it Remove gloves and wash your hands with soap when you finish work Chemical cupboard in the lab that contains small quantities of poisonous, oxidizing, blistering, inflammable and explosive chemicals. MSDS sheets are stored here.

Cryogens: 

Cryogens In addition to safety glasses, wear a face mask and cryogenic gloves If the nitrogen valve sticks open, close it with the monkey wrench Cryogenic Safety equipment Ear protection Cryogenic gloves Monkey wrench for emergency closure of liquid nitrogen tank (keep away from the magnets) Face mask

Cryogens: 

Cryogens In addition to safety glasses, wear a face mask and cryogenic gloves – danger of frostbite or injury from an exploding Dewar Glass Dewars that exploded Ear protection Cryogenic gloves Face mask Safety glasses

Cryogens: 

Cryogens In addition to safety glasses, wear a face mask and cryogenic gloves – danger of frostbite or injury from an exploding Dewar If you need to vent pressure, wear ear protection This equipment is in the cupboard. Return it after use. If there is a large cryogen spill the low oxygen alarm may sound The symptoms of lack of oxygen include dizziness, drowsiness, nausea, vomiting, excessive salivation, reduced alertness, unconsciousness and death Even if there is no alarm and you suspect lack of oxygen Leave the room – danger of suffocation

Eyewash and emergency shower: 

Eyewash and emergency shower In case of chemical contamination Eyewash and Emergency shower Open Push Eye wash Emergency shower

First aid: 

First aid In case of unconsciousness, chest pain, serious injury or illness – call an ambulance immediately Call 85000 (security) (Afterwards 101 from a mobile phone to give further details) First aid kit in the room – report use to the staff Call university first aider Roy 0523849276 Yair 0527618869 Jonathan 0545883624 First aid kit

Safety obligations of laboratory users: 

Safety obligations of laboratory users Abide by all the above safety regulations Watch this presentation every half year and sign that you have seen it Do a fire extinguishing exercise every half year and sign that you did it You are responsible for damage caused by any guests that you bring to the laboratory The laboratory manager reserves the option to rescind the right to enter the laboratory to those who do not comply with the safety obligations