| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. SAMPLE IDENTIFICATION | |||
| A1 | Each sample labelled with unique sample ID (project-date-serial) and cross-referenced on form Acceptance: Sample ID label durable and tamper-evident; ID matches form row | Cl. 7.4.2 — Identification | OK NC NA HOLD |
| A2 | For concrete cubes — record casting date, source (activity/pour), grade, mix ID Acceptance: Cube marked with waterproof paint: sample ID + cast date + pour reference; cross-referenced in form | Cl. 5 — Cube identification | OK NC NA HOLD |
| A3 | For cement / aggregate — record batch, source, quantity sampled, receipt date Acceptance: Batch, source and receipt date captured; linked to GRN / MTC | Cl. 7.4.2 — Material | OK NC NA HOLD |
| B. SAMPLE PREPARATION AND INTEGRITY | |||
| B1 | Sample drawn per relevant IS / ISO sampling method (IS 4031, IS 516, IS 2430, etc.) Acceptance: Sampling method documented; minimum sample quantity collected (e.g., IS 4031 cement ≥ 5 kg) | Cl. 7.3 — Sampling | OK NC NA HOLD |
| B2 | Sample sealed in clean, inert container; tamper-evident seal applied Acceptance: Seal intact; signed across cap/lid; sample unaltered from site condition | Cl. 7.4.4 — Storage | OK NC NA HOLD |
| B3 | Concrete cubes: de-moulded after 24±4 hr, cured in water tank at 27±2°C until dispatch Acceptance: De-moulding and curing regime logged; tank temperature records attached | Cl. 4 — Curing | OK NC NA HOLD |
| B4 | Samples photographed before dispatch showing labels and seals Acceptance: Photos filed with dispatch form; show clear sample ID | Cl. 7.5 — Records | OK NC NA HOLD |
| C. SAMPLE DETAIL TABLE | |||
| C1 | Row 1: Sample ID, description, quantity, casting date, age at test (if concrete) Acceptance: Each row fully filled; no blanks; casting date + test age = date of test | Cl. 7.4 — Sample info | OK NC NA HOLD |
| C2 | Row continued: Test required (e.g., 28-day compressive strength, fineness, soundness) Acceptance: Test list complete and per applicable IS; reporting requirements stated | Cl. 7.1 — Test request | OK NC NA HOLD |
| C3 | Row continued: Priority (Routine / Urgent); expected report date Acceptance: Priority and TAT specified; communicated to lab at dispatch | Cl. 7.8 — Reporting | OK NC NA HOLD |