Pre-shipment Inspection: STAMINA Competition Kettlebell — 7 weights, 703 pcs | June 2026 | PASS
✅ Result: PASSJune 15, 2026

Pre-shipment Inspection: STAMINA Competition Kettlebell — 7 weights, 703 pcs | June 2026 | PASS

Report No. OIS20260615PSI-01. Pre-Shipment Inspection (PSI) conducted on 15 June 2026 at a factory in Jimo District, Qingdao, China. Inspector: Larson.

Subject of inspection: STAMINA competition kettlebells in 7 colour-coded weight variants: 8 kg (pink), 12 kg (blue), 16 kg (yellow), 20 kg (purple), 24 kg (green), 28 kg (orange), 32 kg (red). Cast iron body with embossed "STAMINA 2025" branding and weight marking, steel handle in matt anthracite finish. The order also included: STAMINA adjustable bench (model WB1112), PVC mat with printed logo and hard chrome safety squat bar (JL0402). Total quantity: 703 pcs — 100% finished, 97.4% packed into master cartons (685 pcs) at the time of inspection.

Inspection standard: ANSI/ASQ Z1.4-2008 (MIL-STD-105E), plan G-II, normal inspection. Sample: 50 units per weight variant. AQL limits: CRI 0 / MAJ 2.5 / MIN 4.0.

Inspection scope: quantity and packing completeness verification for all 7 variants, visual product and packaging check, carton marking and shipping mark verification, carton dimension and weight measurement (3 cartons per variant), kettlebell weight verification, 3M tape adhesion test (13 pcs) and functional assembly test of the adjustable bench (50 pcs).

Test results: quantity verification — PASS. Bench function and adjustment mechanism test — PASS (no mechanical defects). 3M tape test (coating adhesion) — PASS. Carton dimensions and weights — PASS (all values within ±5% tolerance). On-site special tests and requirements — PASS.

AQL workmanship results (sample of 50 pcs, 7 variants): CRI: found 0 / max 0 — PASS. MAJ: found 3 / max 3 — PASS. MIN: found 4 / max 5 — PASS. All 7 weight variants were within the acceptable limits.

Defects found were purely cosmetic in nature: MDKB7-8KG — coating stain (1 MIN); MDKB7-12KG — handle dent (1 MIN); MDKB7-16KG — coating void near hole (1 MIN); MDKB7-20KG — paint chip (1 MAJ); MDKB7-24KG — paint chip (1 MAJ); MDKB7-28KG — coating void (1 MIN); MDKB7-32KG — paint chip (1 MAJ). Total: 0 CRI / 3 MAJ / 4 MIN — AQL result: PASS across all variants.

Process remark: the factory did not have an approval sample on site at the time of inspection, which prevented formal verification of product conformance against the approved reference (Remark 1). Workmanship quality, dimensions, functionality and AQL results were assessed positively against the technical specification. The decision to approve shipment rests with the client.

Inspection result: PASS — quantity, on-site tests and AQL workmanship all within limits across all 7 weight variants.

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Inspection Report
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STAMINA Competition Kettlebell Inspection 703 pcs — PASS | Oriental IMEX