3. In preparation for an extended yard period, you are reviewing your ship's plans. You notice several bulkheads are labeled A60. What is indicated by the label A60?

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fire division boundary, a class, with insulation that will limit temperature rise to below the allowable level for 60 minutes.

3. In preparation for an extended yard period, you are reviewing your ship's plans. You notice several bulkheads are labeled A60. What is indicated by the label A60?

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