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Testing QR sprinklers

Question asked by William Cary on Mar 1, 2018
Latest reply on Mar 9, 2018 by Kenneth Isman

Is anyone seeing enforcement of the NFPA-25 20 Year Rule for testing QR sprinkler on ESFR systems?

 

When NFPA-25 mentions individual "sample sprinkler," can I assume that its just 1% of heads (min. 4) and they can all be removed from one system since all four systems have the same year, RTI, SIN & Temp head that requires the testing.

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