Precaution

The radioactive sources used in the experiments on these pages are very low level isotopes referred to as "license free" sources. This does not mean, however, that these materials represent no hazard to students. Please observe the following guidelines for use of low-level radioactive materials in classroom environments.

• Store and transport all sources in a suitable lead container. Lock them away when not in used.
• Always handle the sources with forceps or a special lifting tool.
• Gloves and lab coats should be worn when working with all liquid radioisotopes.
• Keep the sources at arm's length, and point it away from the human body.
• Take great care not to drop the sources.
• Report ALL spills, wounds, or other emergencies to your teacher.
• Keep exposure time to a minimum.
• All radioactive liquids wastes are to be poured into the liquid waste container, NEVER a sink.
• Eating, drinking, and application of cosmetics in the labaratory is not permitted.
• Before leaving the lab, wash your hands thoroughly then check for possible contamination with a survey instrument.
  

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