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Hwa Chong Institution. HCI Science Block. HCI Science Labs. HCI Science Labs. School Science Laboratory. Safety regulations. Important Notice to Pupils. Pupils must not enter the laboratory unless a teacher is present. Important Notice to Pupils.
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School Science Laboratory Safety regulations
Important Notice to Pupils • Pupils must not enter the laboratory unless a teacher is present.
Important Notice to Pupils • Wait outside the laboratory quietly until your teacher allows you to go in.
Important Notice to Pupils • If teachers are not present please contact Lab Staff at 6467 3005 for any enquiries.
Important Notice to Pupils • Put your bags on the shelf provided before practical lessons.
IMPORTANT NOTICE TO PUPILS • Apparatus or chemicals are to be used only in the laboratory and must not be removed from the laboratory without the permission of a teacher.
IMPORTANT NOTICE TO PUPILS • Laboratory materials and equipment must be used only for purposes instructed and approved by the teacher-in charge. You are not allowed to go beyond the instructions of the teacher in any experiment.
Important Notice to Pupils • All apparatus must be carefully examined before use. If you receive dirty or broken apparatus, report it to the teacher at once.
Important Notice to Pupils • Nothing should be tasted without the instructions of the teacher.
Important Notice to Pupils • Anything accidentally taken into the mouth must be spat out at once and the mouth rinsed with plenty of water.
Important Notice to Pupils • Breakages and accidents, however slight, must be reported at once to the teacher.
Important Notice to Pupils • You should wear safety goggles for all practical work involving chemicalsand heat.
Chemical Spill • Warn laboratory users. • Contain / cover spill with paper towels. • Open windows to ventilate. • Alert teacher / lab staffs.
Biological Spills • Warn laboratory users • Cover spill with paper towels. • Pour Disinfectant over spill. • Alert teachers / lab staffs
Major Injury • Give first aid at once. • Call ambulance --- 995 • Alert the school Office. Minor Injury • Give first aid. • Alert the school office.
Possible Accidents in the lab • Minor Injury – Cuts and Burns. • Chemical spillage into eyes. • Fire.
Minor Injury – Cuts and Burns • First Aid Box near the white board.
Chemical spillage into eyes. (Shower & Eye washer). • Any spillage of chemicals on the skin or clothing must be washed at once with much water.
Fire (Fire extinguisher) • Located near the white board and at the back of the lab.
To operate Fire Extinguisher • Pull the pin at the top of the extinguisher that keeps the handle from being accidentally pressed.
To operate Fire Exinguisher • Aim the nozzle toward the base of the fire. Stand about 3 m from the fire.
To operate Fire Exinguisher • Squeeze the handle to discharge the extinguisher. If you release the handle, the discharge will stop.
To operate Fire Exinguisher • Sweep the nozzle back and forth at the base of the fire. After the fire appears to be out, watch it carefully since it may re-ignite!
Fire Blanket • Located near the front door. To use • Pull tapes. • Hold blanket in shield position. • Place gently over fire to cover burning material completely. • Leaved covered until cool.
Other Precautions • Use plastic cup (with handles) to collect hot water.
Handling Hazardous chemicals • For all practical work involving hazardous chemicals must be done in the fume cupboard. • Wear goggles and use test tube holders.
Precaution on Heating • Do not face the test-tube towards yourself or others. • Goggles must be worn at all times. • Never heat flammable substances. • Never leave a flame unattended.
Handling animal work • Wear gloves when doing animal work. • Handle the sharp dissection tools with care. • After dissection of animals, autoclave the carcasses before disposing.
Electricity Safety • Switches or electrical cables must never be handled with wet hands. • Do not use any electrical appliance with exposed wires, report to teachers immediately.
To Evacuate • In the emergency of chemical spills (eg. Conc.HCl, Conc. sulfuric acid, bromine water). • Gas leakage. • When the fire alarm goes off.
To Evacuate • Report to teachers and lab staffs immediately. • Evacuate the lab from the front doors down to the nearest staircase to assemble at the terraces.
EMERGENCY CONTACT NO • FIRE/AMBULANCE…….995 • POLICE………………….. 999 • SCHOOL OFFICE…..64665912 / 64683955 • Non-Emergency Ambulance Service… 1777
References • http://www.northcountyfire.org/sections/safety/extinguisher.htm
