1 lab safety. 2 general safety rules 1. use a low speaking voice in the lab. 2. no horseplay or...

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Lab SafetyLab Safety

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General Safety RulesGeneral Safety Rules

1. 1. Use a low speaking voice in the Use a low speaking voice in the lab.lab.

2. 2. No horseplay or goofing aroundNo horseplay or goofing around of any kind allowed in the lab.of any kind allowed in the lab.

3. No sitting on lab tables.3. No sitting on lab tables.

4. Be prepared to work when you 4. Be prepared to work when you arrive at the laboratory. If instructed arrive at the laboratory. If instructed to do so by your teacher, familiarize to do so by your teacher, familiarize yourself with the lab procedures yourself with the lab procedures before beginning the lab.before beginning the lab.

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General Safety Rules cont…General Safety Rules cont…55. . Perform only those lab activities Perform only those lab activities

assigned by your teacher. Never do assigned by your teacher. Never do anything in the laboratory that is not anything in the laboratory that is not called for in the laboratory procedure or called for in the laboratory procedure or by the teacher.by the teacher.

6. 6. Work areas should be kept clean and Work areas should be kept clean and tidy at all times. Only lab handouts and tidy at all times. Only lab handouts and notebooks should be brought to the work notebooks should be brought to the work areas.areas. Other books, purses, backpacks Other books, purses, backpacks etc. should be left at your desk or placed etc. should be left at your desk or placed in a designated storage area.in a designated storage area.

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General Safety Rules cont…General Safety Rules cont…

7. 7. Food or drink are Food or drink are nevernever allowed in the lab. Water allowed in the lab. Water may be drank in the front may be drank in the front part of the classroom part of the classroom during non-lab days from during non-lab days from your own water your own water container(unless noted by container(unless noted by the teacher).the teacher).

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8. 8. Clothing should be appropriate Clothing should be appropriate for working in the lab. Jackets, ties for working in the lab. Jackets, ties and other loose garments should be and other loose garments should be removed. Long sleeves should be removed. Long sleeves should be rolled up or secured in some rolled up or secured in some manner. Jewelry that might present manner. Jewelry that might present a safety hazard, such as dangling a safety hazard, such as dangling necklaces, chains, medallions, or necklaces, chains, medallions, or bracelets, should not be work in the bracelets, should not be work in the lab.lab.

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9. Long hair should be tied back 9. Long hair should be tied back or covered, especially in the or covered, especially in the vicinity of an open flame.vicinity of an open flame.

10. Follow all instructions, both 10. Follow all instructions, both written andwritten andoral, carefully.oral, carefully.

11. Transitions should be done 11. Transitions should be done quietly, and efficiently.quietly, and efficiently.

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General Safety Rules General Safety Rules cont…cont…

12. A lab coat or apron should 12. A lab coat or apron should when instructed. Safety goggles when instructed. Safety goggles will be required when using will be required when using chemicals. chemicals.

13. Set up apparatus as described 13. Set up apparatus as described in the lab instructions or by the in the lab instructions or by the teacher. Never use makeshift teacher. Never use makeshift arrangements.arrangements.

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14. Always use the prescribed 14. Always use the prescribed instrument (tongs, test-tube holder, instrument (tongs, test-tube holder, forceps, etc.) for handling apparatus forceps, etc.) for handling apparatus or equipment. or equipment.

15. Keep all combustible materials 15. Keep all combustible materials away from open flames. away from open flames.

16. Never touch or taste any substance 16. Never touch or taste any substance in the lab unless instructed to do so in the lab unless instructed to do so by the teacher.by the teacher.

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17. Never put your face near the 17. Never put your face near the mouth of a container that is mouth of a container that is holding chemicals. holding chemicals.

18. When testing for odors, use a 18. When testing for odors, use a wafting motionwafting motion to direct the to direct the odors to your nose. Never smell odors to your nose. Never smell any chemical unless instructed any chemical unless instructed to do so.to do so.

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19. Any activity involving 19. Any activity involving poisonous vapors should be poisonous vapors should be conducted in the fume hood. conducted in the fume hood.

20. Dispose of waste materials 20. Dispose of waste materials as instructed by the teacher.as instructed by the teacher.

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General Safety Rules cont…General Safety Rules cont…21. Clean up spills immediately. 21. Clean up spills immediately.

22. Clean and wipe dry all work surfaces 22. Clean and wipe dry all work surfaces at the end of class. Wash your hands at the end of class. Wash your hands thoroughly. thoroughly.

23. Know the location of emergency 23. Know the location of emergency equipment (eye wash, fire extinguisher, equipment (eye wash, fire extinguisher, shower, etc.) and how to use them. shower, etc.) and how to use them.

24. Report all accidents to the teacher 24. Report all accidents to the teacher immediatelyimmediately..

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Chemical & Chemical & Glassware Glassware

SafetySafety

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Chemical Safety:Chemical Safety:

25. Read and double-check labels 25. Read and double-check labels on reagent bottles before on reagent bottles before removing any reagent. Take removing any reagent. Take only as much reagent as only as much reagent as reagent as you need.reagent as you need.

26. Do not return unused reagent 26. Do not return unused reagent to stock bottles. Share!to stock bottles. Share!

27. When transferring chemical 27. When transferring chemical reagents from one container to reagents from one container to another, hold the containers another, hold the containers out away from your body.out away from your body.

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Chemical Safety cont…Chemical Safety cont…

28. When mixing an acid and 28. When mixing an acid and water, always add the acid to water, always add the acid to the water.the water.

29. Avoid touching chemicals with 29. Avoid touching chemicals with your hands. If chemicals do your hands. If chemicals do come in contact with your come in contact with your hands, wash them immediately.hands, wash them immediately.

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Glassware Safety:Glassware Safety:30. Glass tubing, especially long 30. Glass tubing, especially long

pieces, should be carried in a pieces, should be carried in a vertical position to minimize vertical position to minimize the likelihood of breakage the likelihood of breakage and to avoid stabbing anyone.and to avoid stabbing anyone. Dispose of broken glassware Dispose of broken glassware in proper container.in proper container.

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Glassware Safety Glassware Safety cont…cont…

31. Never handle broken glass 31. Never handle broken glass with your bare hands. Use a with your bare hands. Use a brush and dustpan to clean brush and dustpan to clean up broken glass. Dispose of up broken glass. Dispose of the glass as directed by your the glass as directed by your teacher.teacher.

32. Never use chipped or 32. Never use chipped or cracked glassware.cracked glassware.

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Lab Safety RulesLab Safety Rules

33. Other rules may be added as 33. Other rules may be added as needed to ensure safety for needed to ensure safety for all students.all students.

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First AidFirst Aid

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First AidFirst Aid

Tell the teacher about ANY and Tell the teacher about ANY and ALL injuries, no matter how ALL injuries, no matter how small they may appear to be.small they may appear to be.

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First Aid cont…First Aid cont…

Injury: BurnsInjury: Burns

To Do: Immediately flush with To Do: Immediately flush with coldcold water until burning water until burning sensation is lessened.sensation is lessened.

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Injury: Cuts, bruisesInjury: Cuts, bruises

To Do: Do not To Do: Do not touchtouch an open an open wound without safety wound without safety gloves. Pressing directly gloves. Pressing directly on minor cuts will stop on minor cuts will stop bleeding in a few minutes. bleeding in a few minutes. Apply cold compress to Apply cold compress to bruises to reduce bruises to reduce swellingswelling..

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Injury: FaintingInjury: Fainting

To Do: Provide To Do: Provide freshfresh air and have air and have the person recline so that the person recline so that their head is their head is lowerlower than the than the rest of their body.rest of their body.

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Injury: The eyesInjury: The eyes

To Do: Flush eyes immediately To Do: Flush eyes immediately with plenty of with plenty of waterwater for for several minutes. If a foreign several minutes. If a foreign object is lodged in the eye, object is lodged in the eye, do not allow the eye to be do not allow the eye to be rubbedrubbed..

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Injury: PoisoningInjury: Poisoning

To Do: Find out what substance To Do: Find out what substance was responsible for the was responsible for the poisoning and alert the poisoning and alert the teacher teacher immediatelyimmediately..

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First Aid cont…First Aid cont…Injury: Spills on the skinInjury: Spills on the skinTo Do: Flush with large quantities of water. To Do: Flush with large quantities of water.

For acid spills, apply For acid spills, apply bakingbaking sodasoda solution. For base spills, apply solution. For base spills, apply vinegarvinegar or boric acid.or boric acid.

In VERY rare instances the shower In VERY rare instances the shower may be used. NEVER use the shower may be used. NEVER use the shower without permission – there are no without permission – there are no drains and it will cause severe flooding. drains and it will cause severe flooding. You will be held financially responsible You will be held financially responsible for all damages if you are found to have for all damages if you are found to have used the shower without permission.used the shower without permission.

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Injury: Electrical shockInjury: Electrical shock

To Do: Shut off the current at the To Do: Shut off the current at the sourcesource. Remove wire with . Remove wire with rubber gloves. Alert the rubber gloves. Alert the teacher immediately.teacher immediately.

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Safety with chemicals and Safety with chemicals and dissecting specimens:dissecting specimens:

• Safety with chemicals and dissecting specimens: Safety with chemicals and dissecting specimens: • Do not touch or taste any chemical unless specifically Do not touch or taste any chemical unless specifically

instructed to do so. instructed to do so. • Read chemical labels more than once before using the Read chemical labels more than once before using the

contents - it is easy to confuse chemicals. contents - it is easy to confuse chemicals. • When working with chemicals or dissections, keep your hands When working with chemicals or dissections, keep your hands

away from your face. The skin on your face is much more away from your face. The skin on your face is much more sensitive to irritation than your hands. sensitive to irritation than your hands.

• To smell something, hold it away from your nose and wave To smell something, hold it away from your nose and wave your hand over it towards your nose. You may pass out or your hand over it towards your nose. You may pass out or inhale dangerous gases is you just stick your nose over the inhale dangerous gases is you just stick your nose over the container and breath in. container and breath in.

• Flush any chemical spill on your skin with plenty of water. The Flush any chemical spill on your skin with plenty of water. The rule of thumb is 15 minutes. rule of thumb is 15 minutes.

• When heating anything in a test tube, point the mouth of the When heating anything in a test tube, point the mouth of the test tube towards a wall, away from people. test tube towards a wall, away from people.

• Do not lay the glass stopper from a reagent bottle on the lab Do not lay the glass stopper from a reagent bottle on the lab table. Hold the handle of the stopper between two fingers table. Hold the handle of the stopper between two fingers while you pour from the bottle. while you pour from the bottle.

• When mixing acids and water, pour the When mixing acids and water, pour the acid into the wateracid into the water. . Remember, AnW (root beer) Remember, AnW (root beer)

• Wash your hands when you are finished with the lab.Wash your hands when you are finished with the lab.

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Safety SymbolsSafety Symbols

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LastlyLastly

You are financially responsible You are financially responsible for any items you break or for any items you break or damage in the laboratory. BE damage in the laboratory. BE CAREFUL!CAREFUL!

1 lab safety. 2 general safety rules 1. use a low speaking voice in the lab. 2. no horseplay or...

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