| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. STATIC PRESSURE AND SUPPLY VERIFICATION | |||
| A1 | Static pressure at main inlet measured (no flow condition) Acceptance: Pressure ≥ 2.8 bar; measured with calibrated gauge; temperature recorded; reading stable after 30 seconds | Cl. 4.1 — Supply pressure baseline | OK NC NA HOLD |
| A2 | Water supply volume adequate for design demand (tank level / source capacity verified) Acceptance: Tank volume ≥ design specification; no risk of depletion during test duration | Cl. 4.2 — Supply capacity | OK NC NA HOLD |
| B. PRESSURE TEST (HYDRAULIC INTEGRITY) | |||
| B1 | System pressure test conducted at 1.5 × maximum working pressure for 1 hour minimum Acceptance: Test pressure ≥ 4.2 bar (1.5 × 2.8); sustained 1 hour; pressure drop < 0.2 bar during test; test record signed | Cl. 5.1 — Integrity pressure test | OK NC NA HOLD |
| B2 | Visual inspection during pressure test: no visible water leaks at joints, seals, or fittings Acceptance: No leaks observed; dry cloth placed at suspicious joints shows no moisture; minor seepage < 10 drops/minute acceptable | Cl. 5.2 — Leak detection | OK NC NA HOLD |
| B3 | Gauge accuracy verified (before and after test); calibration certificate dated within 12 months Acceptance: Gauge calibration certificate attached; deviation noted if any; secondary gauge comparison performed (± 0.1 bar tolerance) | Cl. 5.3 — Test equipment calibration | OK NC NA HOLD |
| C. FLOW TEST AND DISCHARGE VERIFICATION | |||
| C1 | Flow rate measured at remote test point (farthest hydrant/outlet) with outlet pressure ≥ 2.8 bar Acceptance: Flow measured with calibrated meter; ≥ design specification (typically 10-15 l/min); pressure at outlet ≥ 2.8 bar recorded | Cl. 6.1 — Remote outlet flow | OK NC NA HOLD |
| C2 | Flow rate at main supply during design flow test (all zones operating or representative load) Acceptance: Total flow ≥ design demand (flow density × protected area); duration ≥ 15 minutes; flow stable and measurable | Cl. 6.2 — Main line flow | OK NC NA HOLD |
| C3 | Pressure drop along system calculated (from inlet to remote outlet) Acceptance: Pressure drop measured; compared against design calculations; acceptable if within ±10% of design prediction | Cl. 6.3 — Friction loss assessment | OK NC NA HOLD |
| C4 | Sprinkler head discharge pattern observed during flow test (visual inspection of spray from sample heads) Acceptance: Discharge pattern conical/uniform; no clogging evident; no deflections; multiple heads tested to confirm spray quality | Cl. 6.4 — Sprinkler discharge | OK NC NA HOLD |