Uses the N^1.85 relationship: (P_s − P_target) = (Q_target/Q_test)^1.85 · (P_s − P_residual).
Result
- Projected residual at target flow
- 0.61 bar
- Projected residual
- 8.9 psi
- Sufficient (≥ 1.4 bar)?
- No ✗ — supply marginal
Formula: P_target = P_s − (Q_t/Q_r)^1.85 · (P_s − P_r)
Reference: NFPA 291
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