| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. DOCUMENTATION VERIFICATION | |||
| A1 | Delivery docket/challan provided with complete information: date, quantity, designation, kiln Acceptance: Docket legible and complete; quantity matches; designation per IS code; kiln number noted | Cl. 8 — Documentation | OK NC NA HOLD |
| A2 | Manufacturing/firing date or batch number documented for traceability Acceptance: Date visible on invoice; batch number clearly marked; linkage to test reports | Cl. 9 — Batch identification | OK NC NA HOLD |
| A3 | Quality certification or test certificate available showing compliance with IS standard Acceptance: Certification present; shows strength class, water absorption, efflorescence test results | Cl. 3 — Quality assurance | OK NC NA HOLD |
| A4 | Quantity reconciliation: invoice vs. physical count on site verified Acceptance: Physical count ≈ invoice within ±2% tolerance; stack count documented | Cl. 9 — Quantity verification | OK NC NA HOLD |
| B. PHYSICAL DIMENSION VERIFICATION | |||
| B1 | Random sample of bricks/blocks measured: length, width, height within tolerance Acceptance: Measurements within ±3% or ±2mm (whichever less); sample minimum 5 units; documented | Cl. 5.1 — Dimensional tolerance | OK NC NA HOLD |
| B2 | Unit straightness and squareness assessed: no warping or twisting visible Acceptance: Units square and plumb; no visible warping; max warping 3% per side tolerance | Cl. 5.2 — Shape and form | OK NC NA HOLD |
| C. PHYSICAL CONDITION INSPECTION | |||
| C1 | Surface condition: no major cracks, spalling, or damage affecting use Acceptance: Fine hairline cracks acceptable; major cracks >5mm rejected; spalling <3% acceptable | Cl. 5.3 — Surface defects | OK NC NA HOLD |
| C2 | Color uniform across batch; no significant color variation indicating quality issues Acceptance: Color consistent; uniform burning; no dark spots or over-burned units >5% of batch | Cl. 5 — Physical appearance | OK NC NA HOLD |
| C3 | No visible efflorescence or salt deposits on unit surfaces Acceptance: Surfaces clean; no white powder deposits; minor efflorescence acceptable | Cl. 5.4 — Soluble salts | OK NC NA HOLD |
| C4 | Units sound and hard; no softer friable areas indicating underfiring Acceptance: Units ring when struck; solid structure; no soft burning; good hardness confirmed | Cl. 5 — Vitrification | OK NC NA HOLD |