Regents Prep: Living Environment: Laboratory:

Laboratory Safety
Safety in the laboratory must be a primary concern to both student and teacher.   Specific safety concerns vary from between different science courses and laboratories, but many safety concerns and precautions need to be taken in all science laboratories.   At the beginning of most laboratories, the teacher will engage in a pre-lab discussion. Many safety procedures will be discussed during these discussions. It is important to listen attentively and follow the safety procedures given by the teacher.

Some General Lab Safety Rules

1.   Keep all flammable materials away from open flames or 
      dangerous chemicals.

2.   Tie back long hair when you are working with an open flame. 
      Pipe cleaners, rubber bands, and string are useful for this purpose.

3.   Do NOT mix chemicals or perform unscheduled 
      experiments without your teacher's approval

4.   Never use chemicals from an unlabeled container. Do not 
       taste, smell, or touch chemicals unless specifically instructed 
       by your teacher to do so.

5.   Wear safety goggles during experiments involving 
      dissection, heating, hammering or while using acids/bases or 
      other chemicals. If you do not have goggles on, stay away 
      from students that are experimenting.

6.   Point the open end of a test tube or flask away from yourself 
      and others while heating it. Never heat a closed container.

7.   Use liquid squeeze bottles only for their intended purpose.

8.    Keep the lab clean and discard materials in containers designated
       for this.

9.    Be careful picking up hot materials, especially glassware.   Hot 
       glass and cold glass appear the same.

10.   Do not force glass tubing into a stopper. Use glycerine or 
        water to lubricate the glass before doing this.

11.   Do not eat in the lab or place pencils, pens, or other materials
        in your mouth.

12.   Never return excess chemicals back to their container.

13.   Know where all laboratory safety equipment is located in the
        lab and how to use it..

Some Dissection Safety Rules

1. If you wear contact lenses, these should be removed when 
    working near chemicals or dissections. Contact lenses can 
    hold chemicals in the eye(s) increasing the potential damage in 
    the event of an accidental splashing of chemicals into the eye(s).

2. Inform your teacher of any illness as a result of exposure 
    to chemicals used in specimen preparation.

3. Avoid contact with preservative chemicals. Rinse the 
    specimens completely before dissection.

4. Properly mount dissection specimens to dissecting pan. Do 
    not dissect a specimen while holding it.

5. Handle scalpel or razor blade (safety edged) with extreme care.

6. Always cut away from your body and away from others.

7. Never ingest specimen parts or remove specimens/specimen 
    parts from the classroom. Properly dispose of dissected materials.

8. Store specimens as directed by your teacher. Clean up the 
    work area and return all equipment to the proper place when 
    the dissection is completed.

9. Wash your hands after each dissection.  


Created by James M. Buckley, Jr.
Copyright 1999-2003 Oswego City School District Regents Exam Prep Center
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