30. all unauthorized experiments are prohibited

Laboratory Safety Rules Science is a hands-on laboratory class. You will be doing many laboratory activities which require the use of hazardous chemicals.   Safety in the science classroom is the number one priority for students, teachers, and parents. To ensure a safe science classroom and laboratory, a list of rules has been developed and provided to you in this student safety contract. These laboratory safety rules must be followed at all times. Both you and your parent or guardian must submit a signed laboratory safety contract before you can participate in laboratory experiments, demonstrations, and other activities.

General Rules

1. Conduct yourself in a responsible manner at all times in the laboratory. 2. Follow all written and verbal instructions carefully. If you do not understand a direction or part of a procedure, ask the instructor before proceeding. 3. Never work alone. No student may work in the laboratory without an instructor present. 4. When first entering a science room, do not touch any equipment, chemicals, or other materials in the laboratory area until you are instructed to do so. 5. Do not eat food, drink beverages, or chew gum in the laboratory. Do not use laboratory glassware as containers for food or beverages.   Do not bring any food or drink into the laboratory. Any food or drink brought into the laboratory will be immediately disposed of in the interest of safety.

6. Perform only those experiments authorized by the instructor. Never do anything in the laboratory that is not called for in the laboratory procedures or by your instructor. Carefully follow all instructions, both written and oral. Unauthorized experiments are prohibited.

7. Be prepared for your work in the laboratory. Read all procedures thoroughly before entering the laboratory.

8. Never fool around in the laboratory. Horseplay, practical jokes, and pranks are dangerous and prohibited.

9. Observe good housekeeping practices. Work areas should be kept clean and tidy at all times. Bring only your laboratory instructions, worksheets, and/or reports to the work area. Other materials (books, purses, backpacks, etc.) should be stored in the classroom area.

10. Keep aisles clear. Push your chair under the desk when not in use.

11. Know the locations and operating procedures, where appropriate, for all safety equipment including first aid kit, eyewash station, safety shower, fire extinguisher, and fire blanket. Know where the fire alarm and exits are located. 12. Always work in a well-ventilated area. Use the fume hood when working with volatile substances or poisonous vapors. Never place your head into the fume hood.

13. Be alert and proceed with caution at all times in the laboratory. Notify the instructor immediately of any unsafe conditions you observe.

14. Dispose of all chemical waste properly. Never mix chemicals in sink drains. Sinks are to be used only for water and those solutions designated by the instructor. Solid chemicals, metals, matches, filter paper, and all other insoluble materials are to be disposed of in the proper waste containers, not in the sink. Check the label of all waste containers twice before adding your chemical waste to the container.

15. Labels and equipment instructions must be read carefully before use. Set up and use the prescribed apparatus as directed in the laboratory instructions or by your instructor.

16. Keep hands away from face, eyes, mouth and body while using chemicals or preserved specimens. Wash your hands with soap and water after performing all experiments. Clean all work surfaces and apparatus at the end of the experiment. Return all equipment clean and in working order to the proper storage area.

17. Experiments must be personally monitored at all times. You will be assigned a laboratory station at which to work. Do not wander around the room, distract other students, or interfere with the laboratory experiments of others.

18. Students are never permitted in the science storage rooms or preparation areas unless given specific permission by their instructor.

19. Know what to do if there is a fire drill or alarm during a laboratory period; containers must be closed, gas valves turned off, fume hoods turned off, and any electrical equipment turned off.

20. Handle all living organisms used in a laboratory activity in a humane manner. Preserved biological materials are to be treated with respect and disposed of properly.

21. When using knives and other sharp instruments, always carry with tips and points pointing down and away. Always cut away from your body. Never try to catch falling sharp instruments. Grasp sharp instruments only by the handles.

22. If you have a medical condition (e.g., allergies, pregnancy, etc.), check with your physician prior to working in lab.

Protective Clothing and Equipment

23. Any time chemicals, heat, or glassware are used, students will wear laboratory goggles. There will be no exceptions to this rule.

24. Contact lenses may be worn provided adequate face and eye protection is provided by specially marked, non-vented safety goggles. The instructor should know which students are wearing contact lenses in the event of eye exposure to hazardous chemicals.

25. Dress properly for lab activities. Long hair, dangling jewelry, and loose or baggy clothing are hazardous. Long hair must be tied back and dangling jewelry and loose or baggy clothing must be secured. Shoes must completely cover the foot. No sandals allowed.

26. Lab aprons have been provided for your use and should be worn during laboratory activities.

Accidents and Injuries

27. Report any accident (spill, breakage, etc.) or injury (cut, burn, etc.) to the instructor immediately, no matter how trivial it may appear.

28. If you or your lab partners are hurt, immediately yell out to get the instructor’s attention.

29. If a chemical splashes in your eye(s) or on your skin, immediately flush with running water from the eyewash station or safety shower for at least 20 minutes. Chemically contaminated clothing and contact lenses must be removed during the flushing process. Notify the instructor immediately.

30. When mercury thermometers are broken, mercury must not be touched. Notify the instructor immediately so that the mercury can be properly disposed.

Handling Chemicals

31. All chemicals in the laboratory are to be considered dangerous. Do not touch, taste, or smell any chemicals unless specifically instructed to do so. The proper technique for wafting chemical vapors will be demonstrated to you. Never stick your nose into a container to smell a chemical.

32. Check the label on chemical bottles twice before removing any of the contents. Take only as much chemical as you need.

33. Never return unused chemicals to their original containers.

34. Never use mouth suction to fill a pipet. Use a rubber bulb or pipet pump.

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

36. Acids must be handled with extreme care. You will be shown the proper method for diluting strong acids. Always add acid to water, swirl or stir the solution and be careful of the heat produced, particularly with sulfuric acid. Never add water to concentrated acids.

37. Handle flammable hazardous liquids over a pan to contain spills. Never dispense or work with flammable liquids anywhere near an open flame or source of heat.

38. Never remove chemicals or other materials from the laboratory area.

39. Take great care when transporting acids and other chemicals from one part of the laboratory to another. Hold them securely and walk carefully.

Proper Handling of Glassware and Lab Equipment

40. Carry glass tubing, especially long pieces, in a vertical position to minimize the likelihood of breakage and injury.

41. Never handle broken glass with your bare hands. Use a brush and dustpan to clean up broken glass. Place broken or waste glassware in the designated glass disposal container. Never place broken glass in the normal garbage can.

42. Inserting and removing glass tubing from rubber stoppers can be dangerous. Always lubricate glassware (tubing, thistle tubes, thermometers, etc.) before attempting to insert it in a stopper. Always protect your hands with towels or cotton gloves when inserting glass tubing into, or removing it from, a rubber stopper. If a piece of glassware becomes “frozen” in a stopper, take it to your instructor for removal.

43. Fill wash bottles only with distilled water and use only as intended, e.g., rinsing glassware and equipment, or adding water to a container.

44. When removing an electrical plug from its socket, grasp the plug, not the electrical cord. Hands must be completely dry before touching an electrical switch, plug, or outlet.

45. Examine glassware carefully before each use. Never use chipped or cracked glassware. Never use dirty glassware.

46. Report damaged electrical equipment immediately. Look for things such as frayed cords, exposed wires, and loose connections. Do not use damaged electrical equipment.

47. If you do not understand how to use a piece of equipment, ask the instructor for help before attempting to use it.

48. Do not immerse hot glassware in cold water; it may shatter.

Heating Substances

49. Exercise extreme caution when using a gas burner. Take care that hair, clothing and hands are a safe distance from the flame at all times. Do not put any substance into the flame unless specifically instructed to do so. Never reach over an exposed flame. Light gas (or alcohol) burners only as instructed by the teacher.

50. Never leave a lit burner unattended. Never leave anything that is being heated or is visibly reacting unattended. Always turn the burner or hot plate off when not in use.

51. You will be instructed in the proper method of heating and boiling liquids in test tubes. Do not point the open end of a test tube being heated at yourself or anyone else.

52. Heated metals, glass, and ceramic remain very hot for a long time. If in doubt, always treat metal, glassware, and ceramic as if it is hot. They should be set aside to cool and picked up with caution. Use tongs or heat-protective gloves if necessary.

53. Never look into a container that is being heated.

54. Do not place hot apparatus directly on the laboratory desktop. Always use an insulating pad or tile square. Allow plenty of time for hot apparatus to cool before touching it.

55. When bending glass, allow time for the glass to cool before further handling. Hot and cold glass has the same visual appearance. Determine if an object is hot by bringing the back of your hand close to it prior to grasping it.

Health Information

56. Many experiments involve the use of foods and other consumer items.   Students must make the teacher aware of any allergies prior to experiments to help avoid possible allergic reactions. These allergies should be listed on the signed laboratory contract that is handed into the teacher.

57. Female students must inform the teacher if they have become pregnant before participating in laboratory experiments. Pregnant women and their developing child can be more sensitive to or at a greater risk of complication when exposed to certain chemicals. This information will remain confidential.

Safety Goggles are Required at  All   Times  in the Laboratory

Although safety goggles may not be the most attractive item, they are essential personal protective equipment that must be worn in the Chemistry Lab during active experiments.

Goggles protect your eyes from coming in contact with chemicals, chemical fumes, damaging UV light, and other debris. Students will be required to wear goggles at all times during chemistry experiments and certain demonstrations.

Ensuring student safety is the number one priority of Mr. Collins and the Greater Nanticoke Area School District. This is not just a rule or policy of Mr. Collins or the Greater Nanticoke Area School District, but is required by the following laws or regulations:

Pennsylvania Eye Safety Law: Act 116 of 1965

Every teacher, student, visitor, spectator, and every other person in any laboratory or laboratory in public or private schools, colleges and universities who is engaged in or is within the area of known danger created by:

1. the use of hot liquids, solids or gases or caustic or explosive materials,

2. the milling, sawing, turning, shaping, cutting, grinding or stamping of solid materials,

3. the tempering, heat treatment or kiln firing of metals and other materials,

4. gas or electric welding,

5. the repairing or servicing of vehicles,

...shall wear industrial quality eye protective devices at all times while engaged in such activities or exposed to such known dangers.

Occupational Safety and Health Administration:  Eye and Face Protection Standard - 29 CFR 1910.133

The teacher shall ensure that each student uses appropriate eye or face protection when the potential for exposure to eye or face hazards from flying particles, molten metal, liquid chemicals, acids or caustic liquids, chemical gases or vapors, or potentially injurious light radiation are present.

Lab Safety Symbols

There are several common symbols that you will encounter on laboratory handouts that you should be familiar with before working in the science laboratory. Here is a list of some of the symbols you may see:

Global Harmonized System (GHS)

Over the last few year, a more modern set of warning symbols and descriptions have been adopted worldwide as to help serve as a universal warning of chemical hazards. These newer symbols are known as the Globally Harmonized System (GHS) and are pictured below. These symbols are often found on chemical containers helping you to rapidly identify the hazards associated with the chemical.

Safety Quiz On Laboratory: Test!

Upgrade and get a lot more done!

Flammable materials, like alcohol, should never be dispensed or used near:

An open door.

An open flame.

Another student.

Rate this question:

If a laboratory fire erupts, immediately:

Notify your instructor.

Run for the fire extinguisher.

Throw water on the fire.

Open the window.

Approved eye protection devices (such as goggles) are worn in the laboratory.

To avoid eye strain.

To improve your vision.

Only if you don’t have corrective lenses.

Anytime heat, glassware or chemicals are used.

If you wear contact lenses in the school laboratory:

Take them out before starting the lab.

You do not have to wear protective glasses.

Advise your instructor you wear contacts.

Keep the information to yourself.

If you do not understand part of a direction or part of a lab procedure, you should:

Figure it out as you do the lab.

Try several methods until something works.

Ask the instructor before proceeding.

Skip it and go to the next part.

After completing an experiment, all chemical wastes should be:

Left at your lab station for the next class.

Disposed of according to the lab instructions.

Dumped down the sink.

Taken home.

If a lab experiment is not completed, you should:

Discuss the issue with your instructor.

Sneak in after school and work alone.

Bring your lunch in and finish it.

Make up some results.

You are heating a substance in a test tube, you should point the test tube

Toward yourself

Toward your lab partner.

Toward another classmate.

Away from all people.

You are heating a piece of glassware, and now want to pick it up, you should

Use a rag or paper towels.

Pick up the end that looks cooler.

Pour cold water on it.

You have been injured in the laboratory, you should

Visit the school nurse after class.

See a doctor after school.

Tell your instructor at once.

Apply first aid yourself.

When gathering glassware and lab equipment for a lab, you should

Read the lab to see what equipment is needed.

Examine all glassware to check for chips or breaks.

Clean all glassware.

All possible answers.

When you come into the classroom for lab you should do all of the following, except

Place all personal material under the table.

Get something to write with and your lab sheet.

Put your personal material on the table neatly.

None of the possible answers.

Personal eye glasses provide as much protection as

A face shield

Safety glasses.

Chemical splash goggles.

Long hair in the laboratory must be

Held away from the experiment with one hand.

Always neatly groomed.

Tied back and secured with some type of hair device.

In the laboratory, the following must not be worn

Loose clothing.

Dangling jewelry.

All possible answer choices.

The following footwear is best in the laboratory

Open-toed shoes.

Closed-toed shoes.

Shoes appropriate for the weather.

Horseplay or practical jokes in the laboratory are

Always against the rules.

Not dangerous.

Okay if you are working alone.

 If a piece of equipment is not working properly, stop, turn it off and tell

Maintainence.

Your lab partner.

Your best friend.

Your instructor.

If acid is splashed on your skin, wash it at once with

Plenty of water.

When you finish working with chemicals and other lab materials always

Treat your hands with lotion.

Wash your hands thoroughly with water.

Wipe your hands with a paper towel.

Wash your hands with germ-ex.

Hot glass looks the same as cold glass.

All chemicals in the lab are to be considered dangerous., return all unused material to their original containers., work areas should be kept clean and tidy., pipets are used to measure and dispense small amounts of liquids.  you should draw the liquid into the pipet with your mouth., laboratory work can begin immediately upon entering the laboratory, even if the instructor is not present., never remove chemicals or other materials from the laboratory. , chipped or cracked glassware is okay to use., read all procedures thoroughly before entering the laboratory., all unauthorized experiments in the laboratory are prohibited. , you are allowed to enter the chemical stockroom any time you need items for a lab., laboratory aprons should be worn for all lab activities., it is okay to pick up broken glassware with your bare hands as long as it’s placed in the trash., never leave a lit burner unattended., it is okay for male students who have long hair to not put it up, but female students must do so..

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30. All unauthorized experiments are prohibited x True False 31. You are allowed to enter the chemical preparation/storage area any time you need to get an item. True False 32. Laboratory aprons should be worn during all lab activities. True False 33. It's okay to pick up broken glass with your bare hands as long as the glass is placed in the trash. True False 1 point 1 point

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