Why must instruments with dissimilar metals (for example chrome-plated and stainless) generally not be cleaned together in the same ultrasonic cycle?

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Multiple choice — select the best answer

AThey float at different rates
BAn electrolytic/galvanic reaction can occur, causing pitting or plating transfer
CThe ultrasonic cannot detect mixed metals
DStainless steel cannot be cleaned ultrasonically

✓ Correct answer: B. An electrolytic/galvanic reaction can occur, causing pitting or plating transfer Mixing dissimilar metals in an ultrasonic bath can set up a galvanic reaction that causes etching, pitting, or transfer of metal ions between instruments.

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Topic: Decontamination & Cleaning

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Why must instruments with dissimilar metals (for example chrome-plated and stainless) generally not be cleaned together in the same ultrasonic cycle?

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