Laboratory Safety Rules

1. Laboratory Safety Rules

2. While working in the science laboratory, you will have certain important _____________ that do not apply to other classrooms. You will be working with materials and apparatus which, if handled carelessly or improperly, have the potential to cause ______ or discomfort to someone else as well as yourself. responsibilities injury

3. A science laboratory can be a safe place in which to work if you, the student, are foresighted, alert, and cautious. Violating any of the following regulations will result in you being suspended from class or permanently removed from the class. The following practices will be followed:

4. 1. An _________ must be present during the performance of all laboratory work. • 2. Report any _________ to the teacher immediately, no matter how_______, including reporting any burn, scratch, cut, or corrosive liquid on skin or clothing. • 3. Prepare for each laboratory activity by _______ all instructions before coming to class. Follow all _________ implicitly and intelligently. Make note of any __________ in procedure given by the instructor. instructor accident minor reading directions modification

5. spill • 4. Any science project or individually planned experiment must be __________ by the teacher. approved 5. Use only those materials and equipment _________ by the instructor. authorized immediately 6. Inform the teacher___________ of any equipment not working properly. spill 7. Clean up any nonhazardous _____ on the floor or workspace __________. immediately

7. Wear Your Safety Goggles! Which would you rather read? FLINN Scientific, Inc "Your Safer Source for Science Supplies" - Poster

8. I'm a little Chemist, short and stout, • Here are my goggles, here are my eyes. • When I don't wear my goggles, • my teacher shouts, • PUT THEM ON OR YOU GET OUT!

9. 8. Wear appropriate ______________, as directed by the instructor, whenever you are working in the laboratory. Safety goggles must be worn during hazardous _________ involving caustic/corrosive chemicals, heating of liquids, and other activities that may injure the eyes. eye protection activities

10. 9. Splashes and fumes from hazardous chemicals present a special danger to wearers of _____________. Therefore, students should preferably wear regular glasses (inside splash -proof goggles, when appropriate) during all class activities or purchase personal splash-proof goggles and wear them whenever exposure to chemicals or chemical fumes is possible. Students with open skin wounds on hands must wear gloves or be excused from the laboratory activity. contact lenses

11. 10. Never ______ hot equipment or dangerous chemicals through a ______ of students. • 11. Check ______ and equipment instructions carefully. Be sure correct items are ______ in the proper manner. • 12. Be aware if the _________ being used are hazardous. Know where the material safety data sheet (______) is and what it indicates for each of the hazardous chemicals you are using. carry group labels used chemicals MSDS

12. taste • 13. Never ______ anything or touch chemicals with the hands, unless __________ instructed to do so. specifically 14. Test for odor of chemicals only by ______ your hand above the container and sniffing cautiously from a ________. waving distance in 15. Eating or drinking ___ the laboratory or from laboratory equipment is ____ permitted. NOT mechanical 16. Use a __________ pipette filler (never the mouth) when measuring or transferring small quantities of liquid with a pipette.

13. 17. When heating material in a test tube, do not _____ into the tube or point it in the direction of any person during the process. look reagents 18. Never pour ________ back into bottles, exchange stoppers of bottles, or lay stoppers on the table. acids 19. When diluting _____, always pour acids into ______, never the reverse. Combine the liquids slowly while stirring to distribute heat buildup throughout the mixture. water

14. 20. Keep _______ away from face, eyes, and clothes while using solutions, specimens, equipment, or materials in the laboratory. Wash hands as necessary and wash thoroughly at the __________ of the laboratory period. hands conclusion 21. To treat a burn from an acid or alkali, wash the affected area ___________ with plenty of running water. If the eye is involved, irrigate it at the eyewash station without interruption for 15 minutes. Report the incident to your instructor immediately. immediately

15. 22. Know the ________ of the emergency shower and eyewash station, fire blanket, fire extinguisher, fire alarm box, and exits. • 23. Know the proper fire and earthquake drill ___________. • 24. Roll long sleeves above the _____. Long, hanging necklaces, bulky jewelry, and excessive and bulky clothing should not be worn in the laboratory. • 25. Confine long hair during a _________ activity. location procedures wrist laboratory

16. cover • 26. Wear shoes that _____ the toes, rather than sandals, in the laboratory. clean 27. Keep work areas _____. Floors and aisles should be kept clear of equipment and materials. burners 28. Light gas ________ only as instructed by the teacher. Be sure no _______ materials (such as alcohol or acetone) are being used nearby. Use a burner with ________ caution. Keep your head and clothing away from the flame and turn it off when not in use. volatile extreme

17. 29. Use a fire blanket (stop, drop, and roll) to _________ any flame on a person. extinguish 30. Dispose of laboratory waste as _________ by the teacher. Use separate, designated containers (not the ___________) for the following: instructed wastebasket • Matches, litmus paper, wooden splints, __________, and so on toothpicks Broken • _______ and waste glass • Rags, paper towels, or other absorbent materials used in the cleanup of __________ solids or liquids flammable liquids • Hazardous/toxic ______ and solids

18. 31. Place books, purses, and such items in the designated storage area. Take only _________ manuals and notebooks into the _______ area. laboratory working 32. Students are not permitted in laboratory _______ rooms or teachers' workrooms without the approval of the ________ storage teacher. 33. To cut small diameter glass tubing, use a ____ or tubing cutter to make a deep scratch. Wrap the tubing in a paper towel before breaking the glass away from you with your thumbs. Fire polish all ends. file

19. 34. Hot and cold glass has the same _____ appearance. Determine whether an object is hot by bringing the back of your hand close to the object. visual 35. Match hole sizes and tubing when inserting glass tubing into a stopper. If necessary, expand the hole first by using an appropriate size cork borer. Lubricate the stopper hole and glass tubing with water or glycerin to ease insertion, using ______ to protect the hand. Carefully twist (never push) glass tubing into stopper holes. towels

20. broken • 36. Remove all ________ glass from the work area or floor as soon as possible. Never handle broken glass with bare hands; use a counter _____ and dustpan. brush 37. Report broken glassware, including thermometers, to the instructor __________. immediately. 38. Operate electrical equipment only in a dry area and with _____ hands. dry 39. When removing an electrical plug from its socket, pull the ______, not the electrical cord. plug

21. 40. Always approach laboratory experiences in a _______ and courteous manner. serious clean 41. Always ______ the laboratory area before leaving. 42. Students and teacher wash hands with ______ and water before leaving the laboratory area. soap

22. 43. When heating volatile or flammable materials, use a water bath; that is, heat the materials in or over heated water, using a hot plate to heat the water. _________ all open flames. Extinguish caution 44. Exercise _______ in using scissors, scalpels, dissecting needles, and other sharp-edged instruments. Pass them with handles extended when handing them to other persons.

23. 47. Be sure all glassware is ______ before use. Clean glassware thoroughly ______ use. Residue may cause errors in new experiments or cause a _______ reaction or explosion. immediately 45. Inform the teacher ___________ of any equipment not working properly. 46. Use the fume hood whenever noxious, corrosive, or toxic _______ are produced or released. fumes clean after violent

24. _______ of safety equipment including, but not limited to • eyewash stations • emergency showers • fire extinguishers • fire blanket The following actions will result in being dropped from the class: Misuse Vandalizing __________ school equipment or furniture. Endangering __________ or causing harm to others.

25. http://lansce.lanl.gov/training/FST2004/images04/chemicals1.gifhttp://lansce.lanl.gov/training/FST2004/images04/chemicals1.gif

26. LABORATORY SAFETY Chemical Hazard Label MSDS Safety Quiz Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

27. Safety Symbols

28. NFPA CHEMICAL HAZARD LABEL FLAMMABILITY HEALTH REACTIVITY (STABILITY) SPECIAL

29. 0 Least Serious 4 Most Serious 4 0 NFPA CHEMICAL HAZARD LABEL 4 3 2 Flammable vapor which burns readily Substance is stable

30. 4 Burns readily. 4 3 W May detonate with heat or ignition. Severe health risk. Avoid water. NFPA CHEMICAL HAZARD LABEL Diborane

31. NFPA CHEMICAL HAZARD LABEL Complete Label for Acetone

32. NFPA CHEMICAL HAZARD LABEL Complete Label for Phosphine

33. MSDS • Material Safety Data Sheet • On file for all purchased chemicals. • Includes all information shown on a chemical label and more. • Different formats are used by different chemical companies.

34. MSDS

37. 1 Prior to 1996, this section was titled "Reactivity". The name was changed because many people did not understand the distinction between a "reactive hazard" and the "chemical reactivity" of the material. The numeric ratings and their meanings remain unchanged.

38. This section is used to denote special hazards. There are only two NFPA 704 approved symbols