in ordinary hazard sprinkler cover 12.1m2 .
i divided 4*3 m but i find out in NFPA13 verssion 2016 (Where the distance between sprinklers on the
branch line exceeds 12 ft (3.7 m) or the distance between the
branch lines exceeds 12 ft (3.7 m), the number of sprinklers
for a given pipe size shall be in accordance with Table 184.108.40.206.)
1- if i use 4*3 m is it acceptable.
2- if i want to use NFPA13 instruction in which page can i find table 220.127.116.11 (Note: For other pipe and tube sizes, see Table 18.104.22.168.) or it is mistake from NFPA.