| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. INSPECTION HOLD POINTS | |||
| A1 | HOLD POINT 1: Material Receipt & Quality Verification Acceptance: Pipes inspected; certificates verified; ISI mark checked; accepted/rejected | Verify material before storage/use | OK NC NA HOLD |
| A2 | HOLD POINT 2: Storage & Environmental Conditions Acceptance: Storage adequate; temp <40°C; UV protected; organized inventory | Verify material preservation | OK NC NA HOLD |
| A3 | HOLD POINT 3: Joint Assembly Procedure Pilot (First 50 m) Acceptance: First joints inspected; no leakage; procedure approved for continuation | Verify jointing quality before full-scale laying | OK NC NA HOLD |
| A4 | HOLD POINT 4: Pipe Laying & Support Installation Completion Acceptance: All pipes laid; joints assembled; supports installed; system ready for curing | Verify system is complete before curing/testing | OK NC NA HOLD |
| A5 | HOLD POINT 5: Pressure Test Readiness Verification Acceptance: Joint curing >24 hrs; equipment ready; personnel briefed; safety measures in place | Confirm system ready for testing | OK NC NA HOLD |
| A6 | HOLD POINT 6: Final Acceptance & Handover Acceptance: All tests passed; no rejections; documentation complete; ready for commissioning | Comprehensive final approval | OK NC NA HOLD |
| B. TEST & INSPECTION SCHEDULE | |||
| B1 | Receiving Inspection (Visual, dimensional, certificate verification) Acceptance: All deliveries inspected; defects <1% acceptable; certificates filed | Material quality at receipt | OK NC NA HOLD |
| B2 | Daily Joint Inspection (Alignment, leakage, curing status) Acceptance: Daily visual checks; joints inspected; defects logged and tracked | Ongoing QC during installation | OK NC NA HOLD |
| B3 | Support Installation Check (Spacing, alignment, stability) Acceptance: Bracket spacing per spec (1-2 m horizontal); level/plumb verified | Support system compliance | OK NC NA HOLD |
| B4 | Hydrostatic Pressure Test (System leak detection, pressure hold) Acceptance: Test pressure 1.5× working; hold 2+ hrs; pressure drop ≤5%; no visible leakage | System integrity verification | OK NC NA HOLD |
| B5 | Ring Stiffness Test (If HDPE, verify structural rigidity) Acceptance: If HDPE: ring stiffness ≥ spec minimum; batch tested 5-10%; results documented | Flexible pipe structural verification | OK NC NA HOLD |
| C. ACCEPTANCE CRITERIA | |||
| C1 | Material Acceptance (Quality, certificates, defects <acceptable limit) Acceptance: ISI mark present; test certificates valid; visual defects within grade limits | Material meets specification | OK NC NA HOLD |
| C2 | Installation Acceptance (Joints leak-free, supports adequate, alignment correct) Acceptance: Joints no leakage at normal conditions; spacing/alignment per spec | Installation meets standard | OK NC NA HOLD |
| C3 | Pressure Test Acceptance (Pass pressure hold, minimal pressure drop) Acceptance: Pressure drop ≤5% over 2 hrs at test pressure; no visible leaks | System integrity verified | OK NC NA HOLD |
| C4 | Final System Acceptance (All checks passed, no outstanding issues) Acceptance: All hold points cleared; documentation complete; approval given | Ready for commissioning | OK NC NA HOLD |