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Smoke Detectors and Exit Signs

Standard operating procedures for the disposal of ionizing smoke detectors (contain radioactive material)

The majority of smoke detectors are photoelectric and do not contain radioactive material.

Ionizing smoke detectors SmokeDetector

Ionizing smoke detectors contain a small amount of the radioactive source, Americium-241

Usage:
Ionizing smoke detectors are used when a more sensitive smoke detector than the photoelectric detector is needed. Such as the case with fast moving fires that produce little smoke.

Recognition:
Look for a prominent sticker on the back of the detector that states, “Contains radioactive source/ return to the manufacturer.”

Disposal:
Do not tamper with the source or attempt to dismantle the device in any form. Do not dispose of it in the regular trash.
Call the Radiation Safety Office: MS (212-854-4442) or MC (212) 305-0303 to arrange for proper disposal.

Standard operating procedures for the disposal of self-luminescent exit signs

The majority of Exit signs are electric and do not contain radioactive material.

Self-luminescent exit signs exit sign
Self-luminescent exit signs contain large amount of the radioactive gas TRITIUM (H-3)

Usage:
Self-luminescent exit signs are used when electric current or batteries are inconvenient to use such as at remote locations.

Recognition:
Look for a prominent sticker on the back of the detector that states, “Contains radioactive material/return to the manufacturer.”

Disposal:
Do not tamper with the source or attempt to dismantle the device in any form. Do not dispose of it in the regular trash.
Call the Radiation Safety Office: MS (212-854-4442) or MS (212) 305-0303 to arrange for proper disposal.