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Labeling Requirements

Work areas, trays, racks, stock solutions, tools, equipment, etc., which contain radioactive material or are contaminated must be labeled with radioactive materials tape. The label must contain the radioisotope present, date, and the total activity in disintegrations per minute (DPM) or microcuries. It is not reasonable to expect that each tube or vial be labeled, but the container, tray or rack that holds them must be labeled. (For example, scintillation vials do not need to be individually labeled, but the tray or box that they are stored in must have the above described label). The "rule of thumb" is that if there is radiation above the background in or on something, it must be labeled.

For contaminated equipment which is in frequent use, the isotope, date and maximum activity which may be present at any given time is to be written on the radioactive warning label. For equipment which is used for radioactive materials, but is not contaminated (equipment which the staff wishes to identify for radioactive use), a label with the radioactive materials warning, "Caution, Radioactive Materials", may be used. Labels are not required if the equipment is not contaminated.

All radioactive waste must be similarly labeled with the above described information. Bench top waste containers are to be labeled in the same method as for radioactive materials in use or storage. As soon as radioactive waste is placed in the radioactive waste container, all information on the waste tag must be filled out.

Work areas must be labeled with the "Caution Radioactive Materials" sign, or marked off with the radioactive warning label tape. If the area is seldom used for radioactive materials, the area may be labeled only for the duration of the use, providing that it is surveyed for contamination and is free of contamination before the labels are removed. If the work area is frequently used, it is best to label the area permanently. For work areas frequently used for radioactive materials work, and which may contain contaminated equipment, the area may be labeled with a maximum reasonable amount of activity, the radioisotope, the date and the "Caution Radioactive Materials" warning.

Each room in which radioactive materials are used must bear a label on doors to the room. These labels must have the radioactive warning symbol, and the name and telephone numbers of the principal investigator and one other person who is knowledgeable about the radioactive materials uses in the room(s). These labels are for emergency response purposes, and should have the non-working hours telephone numbers where a responsible and knowledgeable individual may be reached in the event of emergency. These labels must not be disposed in the regular trash.

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