FLINN SCIENTIFIC 9. Observe good housekeeping 18. Students are never permitted in
LABORATORY SAFETY practices. Work areas should be kept the science storage rooms or
clean and tidy at all times. Bring only preparation areas unless given
CONTRACT your laboratory instructions, specific permission by their
worksheets, and/or reports to the instructor.
PURPOSE work area. Other materials (books, 19. Know what to do if there is a fire
Chemistry is a hands-on laboratory purses, backpacks, etc.) should be drill during a laboratory period;
class. You will be doing many stored in the classroom area. containers must be closed, gas
laboratory activities which require the 10. Keep aisles clear. Push your valves turned off, fume hoods turned
use of hazardous chemicals. Safety chair under the desk when not in off, and any electrical equipment
in the science classroom is the #1 use. turned off.
priority for students, teachers, and 11. Know the locations and operating
parents. To ensure a safe science procedures of all safety equipment CLOTHING
laboratory, the following list of rules including the first aid kit, eyewash 20. Any time chemicals, heat, or
have been developed for you. These station, safety shower, fire glassware are used, students will
rules must be followed at all times. extinguisher, and fire blanket. wear laboratory goggles. There will
You and your parent or guardian Know where the fire alarm and the be no exceptions to this rule!
must sign the safety agreement exits are located. 21. Contact lenses should not be
before you can participate in the 12. Always work in a well-ventilated worn in the laboratory unless you
laboratory. These rules are to be area. Use the fume hood when have permission from your instructor.
kept in your science notebook as a working with volatile substances or 22. Dress properly during a
constant reminder of the safety rules. poisonous vapors. Never place your laboratory activity. Long hair,
head into the fume hood. dangling jewelry, and loose or baggy
GENERAL RULES 13. Be alert and proceed with caution clothing are a hazard in the
1. Conduct yourself in a responsible at all times in the laboratory. Notify laboratory. Long hair must be tied
manner at all times in the laboratory. the instructor immediately of any back and dangling jewelry and loose
2. Follow all written and verbal unsafe conditions you observe. or baggy clothing must be secured.
instructions carefully. If you do not 14. Dispose of all chemical waste Shoes must completely cover the
understand a direction or part of a properly. Never mix chemicals in sink foot. No sandals allowed.
procedure, ask the instructor before drains. Sinks are to be used only for 23. Lab aprons have been provided
proceeding. water and those solutions designated for your use and should be worn
3. Never work alone. No student may by the instructor. Solid chemicals, during laboratory activities.
work in the laboratory without an metals, matches, filter paper, and all
instructor present. other insoluble materials are to be ACCIDENTS AND INJURIES
4. When first entering a science disposed of in the proper waste 24. Report any accident (spill,
room, do not touch any equipment, containers, not in the sink. Check the breakage, etc.) or injury (cut, burn,
chemicals, or other materials in the label of all waste containers twice etc.) to the instructor immediately, no
laboratory area until you are before adding your chemical waste matter how trivial it may appear.
instructed to do so. to the container. 25. If you or your lab partner are
5. Do not eat food, drink beverages, 15. Labels and equipment hurt,
or chew gum in the laboratory. Do instructions must be read carefully immediately yell out “Code one,
not use laboratory glassware as before use. Set up and use the Code one” to get the instructor’s
containers for food or beverages. prescribed apparatus as directed attention.
6. Perform only those experiments in the laboratory instructions or by 26. If a chemical splashes in your
authorized by the instructor. Never your instructor. eye(s) or on your skin, immediately
do anything in the laboratory that is 16. Keep hands away from face, flush with running water from the
not called for in the laboratory eyes, mouth and body while using eyewash station or safety shower for
procedures or by your instructor. chemicals. Wash your hands with at least 20 minutes. Notify the
Carefully follow all instructions, both soap and water after performing all instructor immediately.
written and oral. Unauthorized experiments. Clean all work surfaces 27. When mercury thermometers are
experiments are prohibited. and apparatus at the end of the broken, mercury must not be
7. Be prepared for your work in the experiment. Return all equipment touched. Notify the instructor
laboratory. Read all procedures clean and in working order to the immediately.
thoroughly before entering the proper storage area.
laboratory and complete all pre-lab 17. Experiments must be personally
work. monitored at all times. You will be
8. Never fool around in the assigned a laboratory station at
laboratory. Horseplay, practical which to work. Do not wander around
jokes, and pranks are dangerous and the room, distract other students, or
prohibited. interfere with the laboratory
experiments of others.
HANDLING CHEMICALS a piece of glassware becomes
“frozen” in a stopper, take it to
28. All chemicals in the laboratory your instructor for removal.
are to be considered dangerous. Do 39. Fill wash bottles only with
not touch, taste, or smell any distilled water and use only as
chemicals unless specifically intended, e.g., rinsing glassware and
instructed to do so. The proper equipment, or adding water to a
technique for smelling chemical container.
fumes will be demonstrated to you. 40. When removing an electrical plug
29. Check the label on chemical from its socket, grasp the plug, not
bottles twice before removing any of the electrical cord. Hands must be
the contents. Take only as much completely dry before touching an
chemical as you need. electrical switch, plug, or outlet.
30. Never return unused chemicals 41. Examine glassware before each
to their original containers. use. Never use chipped or cracked
31. When transferring reagents from glassware. Never use dirty
one container to another, hold the glassware.
containers away from your body. 42. Report damaged electrical
32. Acids must be handled with equipment immediately. Look for
extreme care. You will be shown the things such as frayed cords, exposed
proper method for diluting strong wires, and loose connections. Do not
acids. Always add acid to water, swirl use damaged electrical equipment.
or stir the solution and be careful of 43. If you do not understand how to
the heat produced, particularly with use a piece of equipment, ask the
sulfuric acid. instructor for help.
33. Handle flammable hazardous 44. Do not immerse hot glassware in
liquids over a pan to contain spills. cold water; it may shatter.
Never dispense flammable liquids
anywhere near an open flame or HEATING SUBSTANCES
source of heat. 45. Exercise extreme caution when
34. Never remove chemicals or other using a gas burner. Take care that
materials from the laboratory area. hair, clothing and hands are a safe
35. Take great care when distance from the flame at all times.
transporting acids and other Do not put any substance into the
chemicals from one part of the flame unless specifically instructed to
laboratory to another. Hold them do so. Never reach over an exposed
securely and walk carefully. flame. Light gas (or alcohol) burners
only as instructed by the teacher.
HANDLING GLASSWARE 46. Never leave a lit burner
AND EQUIPMENT unattended. Never leave anything
36. Carry glass tubing, especially that is being heated or is visibly
long pieces, in a vertical position to reacting unattended. Always turn the
minimize the likelihood of breakage burner or hot plate off when not in
and injury. use.
37. Never handle broken glass with 47. You will be instructed in the
your bare hands. Use a brush and proper method of heating and boiling
dustpan to clean up broken glass. liquids in test tubes. Do not point the
Place broken or waste glassware in open end of a test tube being heated
the designated glass disposal at yourself or anyone else.
container. 48. Heated metals and glass remain
38. Inserting and removing glass very hot for a long time. They should
tubing from rubber stoppers can be be set aside to cool and picked up
dangerous. Always lubricate with caution. Use tongs or heat-
glassware (tubing, thistle tubes, protective gloves if necessary.
thermometers, etc.) before 49. Never look into a container that is
attempting to insert it in a stopper. being heated.
Always protect your hands with 50. Do not place hot apparatus
towels or cotton gloves when directly on the laboratory desk.
inserting glass tubing into, or Always use an insulating pad. Allow
removing it from, a rubber stopper. If plenty of time for hot apparatus to
cool before touching it.