Student+Use+of+Lab

__//**Student Use of the Laboratory **//__
 * **No UNAUTHORIZED experiments! **
 * **These are terrible dangers in unskilled hands. **
 * **No EATING or DRINKING in the LAB. **
 * **A good practice is to assume everything in the lab is toxic. **

**PIPETS**


 * **When using pipets, DO NOT suck the liquid into the pipet directly by mouth. **
 * **Frequent mistakes, even by skilled lab workers, lead to the liquid reaching the mouth. **


 * ** DO use a rubber bulb to create a vacuum. **




 * **TESTING of ODORS: **
 * **Do NOT smell the flask directly. **


 * **If you absolutely must test the odor, carefully waft the vapor from the flask toward your nose with your hand. **
 * **Keep the flask quite distant from your face. **
 * **Proper heating of glass tubing or glass rods in order to bend it: **



  
 * **<span style="font-family: Arial,Helvetica;">Remember NOT to hand the red-hot glass rod to another person, especially the teacher. **
 * **<span style="font-family: Arial,Helvetica;">Make sure that reaction tubes, e.g. test tubes, are not directed toward yourself or other persons. **
 * **<span style="font-family: Arial,Helvetica;">The chemicals may splatter out the tube. **
 * **<span style="font-family: Arial,Helvetica;">A better technique: **