Auditoría física integral en fábrica antes de liberar la transferencia final del 70%.
Descargue informe pericial en PDF con más de 60 fotos en HD y veredicto de calidad.
Biblioteca de defectos Críticos, Mayores y Menores en 24 sectores industriales.
Código de muestra estadístico ISO 2859-1 y ANSI/ASQ Z1.4 con límites Ac/Re.
Determine de forma estadísticamente certificada los tamaños de muestra, letras de código y límites máximos tolerables de defectos críticos, mayores y menores para su lote en China.
Indique su producto a continuación. Nuestro modelo de ingeniería de calidad generará un protocolo vinculante de inspección con pruebas específicas y tolerancias de defectos.
ISO 2859-1 (Plan de Muestreo Simple Normal, Nivel General II):
| Lot Size | Code | Sample | Maj (2.5) | Min (4.0) |
|---|---|---|---|---|
| 91 - 150 | F | 20 | Ac:1 / Re:2 | Ac:2 / Re:3 |
| 151 - 280 | G | 32 | Ac:2 / Re:3 | Ac:3 / Re:4 |
| 281 - 500 | H | 50 | Ac:3 / Re:4 | Ac:5 / Re:6 |
| 501 - 1,200 | J | 80 | Ac:5 / Re:6 | Ac:7 / Re:8 |
| 1,201 - 3,200 | K | 125 | Ac:7 / Re:8 | Ac:10 / Re:11 |
| 3,201 - 10,000 | L | 200 | Ac:10 / Re:11 | Ac:14 / Re:15 |
| 10,001 - 35,000 | M | 315 | Ac:14 / Re:15 | Ac:21 / Re:22 |
| 35,001 - 150,000 | N | 500 | Ac:21 / Re:22 | Ac:21 / Re:22 |
Peligro de seguridad, eléctrico, rebabas cortantes o asfixia. 1 solo defecto crítico causa el rechazo inmediato.
Defectos que afectan la función, ensamblaje o códigos de barras no legibles que causan rechazo en almacenes FBA.
Rayones superficiales o leves diferencias estéticas que no merman la utilidad del producto.
Don't rely only on generic numbers. Enter your exact product below. Our AI engine correlates your order volume (3,000 units) with international standards (ASTM, FDA, LFGB, EN71, CE) to generate on-site stress tests, defect classification matrices, factory risk advisories, and generates a permanent, shareable QC protocol dossier.
Umbrales precalculados de Nivel II para los volúmenes más comunes en compras y contenedores.
Matriz estadística para Niveles I, II y III con valores de aceptación (Ac) y rechazo (Re).
| Batch Size (Units) | Level I | Level II (Standard) | Level III | Sample Size (n) | AQL 1.5 (Ac / Re) | AQL 2.5 (Major) | AQL 4.0 (Minor) |
|---|---|---|---|---|---|---|---|
| 2 to 8 | A | A | B | 2 | Ac:0 / Re:1 | Ac:0 / Re:1 | Ac:0 / Re:1 |
| 9 to 15 | A | B | C | 3 | Ac:0 / Re:1 | Ac:0 / Re:1 | Ac:0 / Re:1 |
| 16 to 25 | B | C | D | 5 | Ac:0 / Re:1 | Ac:0 / Re:1 | Ac:0 / Re:1 |
| 26 to 50 | C | D | E | 8 | Ac:0 / Re:1 | Ac:0 / Re:1 | Ac:1 / Re:2 |
| 51 to 90 | C | E | F | 13 | Ac:0 / Re:1 | Ac:1 / Re:2 | Ac:1 / Re:2 |
| 91 to 150 | D | F | G | 20 | Ac:1 / Re:2 | Ac:1 / Re:2 | Ac:2 / Re:3 |
| 151 to 280 | E | G | H | 32 | Ac:1 / Re:2 | Ac:2 / Re:3 | Ac:3 / Re:4 |
| 281 to 500 | F | H | J | 50 | Ac:2 / Re:3 | Ac:3 / Re:4 | Ac:5 / Re:6 |
| 501 to 1,200 | G | J | K | 80 | Ac:3 / Re:4 | Ac:5 / Re:6 | Ac:7 / Re:8 |
| 1,201 to 3,200 | H | K | L | 125 | Ac:5 / Re:6 | Ac:7 / Re:8 | Ac:10 / Re:11 |
| 3,201 to 10,000 | J | L | M | 200 | Ac:7 / Re:8 | Ac:10 / Re:11 | Ac:14 / Re:15 |
| 10,001 to 35,000 | K | M | N | 315 | Ac:10 / Re:11 | Ac:14 / Re:15 | Ac:21 / Re:22 |
| 35,001 to 150,000 | L | N | P | 500 | Ac:14 / Re:15 | Ac:21 / Re:22 | Ac:21 / Re:22 |
| 150,001 to 500,000 | M | P | Q | 800 | Ac:21 / Re:22 | Ac:21 / Re:22 | Ac:21 / Re:22 |
| 500,001 & over | N | Q | R | 1,250 | Ac:21 / Re:22 | Ac:21 / Re:22 | Ac:21 / Re:22 |
Ejemplos reales de clasificación pericial en los sectores exportadores clave de China.
Respuestas clave para dominar las inspecciones de calidad y exigir responsabilidad a las fábricas.
AQL (Acceptance Quality Limit) is defined by ISO 2859-1 and ANSI/ASQ Z1.4 as the maximum percentage of defective units considered satisfactory as a process average. Instead of examining 100% of an order, certified quality inspectors pull a statistically valid random sample based on batch size to determine whether the entire shipment should be accepted or rejected.
AQL 2.5 is the standard threshold for Major defects adopted by global retailers and Amazon FBA sellers. For instance, in an order of 3,000 units inspected under General Level II (Sample Code Letter K, 125 units sampled), the batch passes if 7 or fewer major defects are found (Ac:7), and fails if 8 or more are detected (Re:8).
Critical defects (AQL 0.0) involve safety, fire, or regulatory hazards (e.g. sharp burrs, toxic chemicals, electrical leakage); even 1 critical unit results in instant batch rejection. Major defects (AQL 2.5) impair product functionality, structural integrity, or barcode scannability. Minor defects (AQL 4.0) represent cosmetic imperfections that do not diminish operational usability.
General Inspection Level II is the universal benchmark for over 90% of commercial consumer goods. Level I uses a reduced sample size (approx. 40% of Level II) recommended for trusted, long-term suppliers. Level III pulls a tightened sample (approx. 160% of Level II) suitable for high-value electronics, luxury merchandise, or factories with prior quality disputes.
If an inspection fails, the buyer holds the final wire balance payment (typically 70%). The factory manager signs the on-site inspection report, acknowledging the defect count. The supplier must unbox the inventory, conduct 100% sorting and rework, and schedule a re-inspection. Under standard procurement agreements, the supplier pays the re-inspection fee.
Under General Level II, 5,000 units fall into the 3,201 - 10,000 range (Sample Code Letter L). Exactly 200 units must be randomly pulled from master cartons. Limits are: 0 Critical, maximum 10 Major, and maximum 14 Minor defects allowed before batch rejection.