Uploaded by mad_crack_scientist

LABORATORY SAFETY RULES

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LABORATORY SAFETY RULES

General guide lines.

 Do not run into or out of the laboratory.

 Make sure that your school bags, satchels, coats etc are kept safely outside of the lab.

 Do not eat or drink anything inside the lab.

 Put your stools in order before you leave the laboratory.

 Leave the table-top clean, dry and tidy.

 Tie your long hair.

 Wear laboratory coat, buttoned up, when asked.

 Work quietly.

ALWAYS…….

 Wear safety specs, goggles, or a face mask when you are heating anything, or you are doing any experiment that may be dangerous.

 Ask your teacher if you are not sure how to do something.

 Follow instructions carefully.

 Handle Bunsen burner or oil lamps carefully.

 Keep hands away from face, eyes, mouth, and body while using chemicals or laboratory reagents.

 Wash your hands with soap / hand wash after experiment.

NEVER……

 Touch any equipment, chemicals, reagents or other materials until you are instructed to do.

 Work alone in the lab. without the presence of your teacher.

 Look down into a test tube that contains chemicals.

 Point a test tube at anyone while it is being heated.

 Play with electrical switches.

 Play with fire.

ACCIDENT AND INJURIES:

 Report any accident (spill, breakage etc) or any injury

(cut, burn etc) to your teacher immediately. Do not get panicked.

 If you or your lab. partner is hurt, call your teacher immediately in loud voice.

 If a chemical is splashed in your eye(s) or on skin immediately flush for at least 20 minutes. Call your teacher for help.

HANDLING CHEMICALS/GLASS

WARE/EQIPMENTS

 Do not taste, smell any chemicals.

All chemicals in the laboratory are to be considered dangerous.

 Avoid handling chemicals with fingers. Use tweezer.

 When doing observations, keep yourself at least one metre away from the specimen.

 Read the label on the chemical bottles twice before removing any from the bottle. Take only required amount.

 Never return unused chemicals to the original bottle.

HANDLING CHEMICALS

/GLASS/EQUIPMENTS

 Never handle broken glass with bare hands. Use a brush or dustpan to clean up the broken glasses.

Place the broken glasses in the designated container.

 If you do not understand how to use a piece of equipment, call your teacher for help.

 Never remove chemicals or other materials from lab.

 Do not immerse hot glasses in cold water. The glassware may shatter.

HEATING SUBATANCES:

 Do not operate a hot plate by yourself. Do in presence of your teacher. Your hair, clothing, hands should be in a safe distance from heat.

 Heating glasses remains very hot for a long time.

They should set aside in a designated place to cool down.

 Never look into a container that is being heated.

 Do not place hot container/ apparatus directly on the laboratory desk. Always use an insulated pad. Allow plenty of time hot apparatus to cool down before handling it.

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