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What is the density?

Question asked by thanomsak.c on Jan 18, 2018
Latest reply on Jan 21, 2018 by thanomsak.c
Dear All.

                   I have question about the Standard of NFPA 13, 2016 edition. I'm not sure the numbers of density. Is it correct ? Please see the attached information. Please recheck and let me know. 

Thank you.