NSPC 2015.pdf
2019-10-12 · 90 2015 National Standard Plumbing Code - Illustrated. f 3.4.3 Water Distribution Piping. Water piping for the distribution of hot or cold water within buildings shall be of material listed in Table 3.4, and shall be water pressure rated for not less than 100 psi at 180 deg F and 160 psi at 73 deg F. Plastic piping.
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