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Infection Control · single question

Which is NOT an acceptable way to handle scrap amalgam?

  1. Send it to a licensed amalgam recycler
  2. Store it in a covered, labeled container
  3. Capture it with an ISO 11143-compliant amalgam separator
  4. Discard it in the red biohazard container
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Correct answer: D. Discard it in the red biohazard container

  • A. Correct handling — recycling recovers the mercury and other metals.
  • B. Correct handling — scrap amalgam is stored in a closed, labeled container (historically under fixer or water).
  • C. Correct handling — EPA rules require an amalgam separator on chairside drains.
  • D. Correct. Amalgam is a regulated toxic/heavy-metal waste, not infectious waste. Placing it in a biohazard container routes it to incineration, which volatilizes mercury into the atmosphere.

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