NFPA 13 (Standard for the Installation of Sprinkler Systems) specifies that quick-response and standard-response sprinklers shall not be mixed within the same compartment. This is to ensure uniformity in activation and discharge characteristics.
A (Compartment): Correct, all heads in a compartment must match type.
B, C, D: NFPA does not require wholesale replacement across zones, buildings, or corridors beyond the compartment.
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