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Lab Management of Radioactive Waste
Definition: Any waste that contains or is contaminated with radioactive material.
Examples: Liquid scintillation counting fluids and vials, animal carcasses and excreta, experimental or cleanup materials, and original source vials contaminated with radioactive materials.
- Review waste disposal procedures with the Radiation Safety Office in the planning stages of all experiments. Information on the generation of radioactive waste must be explained in the Basic Research Application.
- All radioactive waste must be stored in containers provided and/or approved by EHS. Before generating radioactive waste, containers may be requested by calling ext. 6-7055 or supplying EHS with a Radioactive Waste Removal Request Form that requests necessary/required containers.
- Segregate wastes according to isotope and waste form (i.e., dry solid, liquid, LSV, sharps, animal).
- Each waste container should be accompanied by a Caution Radioactive Material label and a Radioactive Waste Disposal Log Sheet. If a waste container is missing the label or the log sheet, they can be obtained from EHS by calling ext. 6-7055.
- An entry on the Radioactive Waste Disposal Log Sheet must be annotated each time radioactive waste is placed into the container.
- Never place radioactive waste containers in the corridors. All radioactive waste must be secured in a radioactive material area.
- Submit all radioactive waste removal requests online by clicking on the following link: http://afcf.umaryland.edu/ehs/public/radwaste/
Do not fill the container more than 90 percent full.
Do not mix solid material with liquid material inside of jar.
Make sure to identify the type of liquid inside of the jar and constituent percentage. Examples: Water 100%; Biosafe II 100%; Chloroform 30%/Phenol 70%, etc.
Liquid Radioactive Waste:
Do not place any liquid materials inside dry radioactive waste boxes.
Do not place any lead inside dry radioactive waste boxes. Make sure that all source vial containers or pigs do not contain lead and are placed open inside of the box.
|Dry or Solid Radioactive Waste:
|Radioactive Contaminated Sharps (needles, syringes, blades, etc.):
It is very important that the type and percent of scintillation fluid be noted on the Caution Radioactive Material label and the Radioactive Waste Removal Request Form.
|Liquid Scintillation Vials (LSVs):
1. Never place lead shielding inside of waste containers; this includes lead lined-vial shielding.
2. Before disposing of lead, take swipes to ensure there is no contamination. Keep the swipe results with the lead that is to be picked up by EHS.
3. When submitting the online Radioactive Waste Request Form (http://afcf.umaryland.edu/ehs/public/radwaste/), please write in the Comments section of the form the amount of lead bricks, pigs, foil, etc., that need to be picked up. In addition, please provide the room number where the lead is located and the results of the swipes.
|Radioactive Animal Bedding and Wastes:
||Radioactive Animal Carcasses and Tissues: