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AQL inspection:

What is an AQL Inspection?

An AQL Inspection is a product inspection method using the universal accepted international quality inspection standard: AQL sampling, defect rate, defect definition, defect classification methods to inspect the products.

It is a systematical & statistical way to randomly check the products, and see if the defect rate is within the Acceptable Quality Limit, and the shipment is acceptable, or should be rejected for rework.

Why using random check? 1) it is the factory's responsibilities to make sure the quality is generally acceptable, 2). it is too costly and unconvenient  Because mostly it would cost too much time and trouble to do full check, 3) like the matches, it cannot be all tested to find out if every piece lights up, we can only test a handful randomly, and estimate the percentage.

The random samples need to be picked out from different spots of the product pile when all the products mostly full packed into the cartons or pallets. And if one products have too many defects, we only count as one defective products.

AQL inspection

Please find below for an onsite test list for ceramic knife in a typical preshipment inspection:

Visual inspection: do not allow the bending, flaw, crack, spots, scratches, wavy lines, etc PASSED
Dimensional inspection: check the thickness of the blade and blade width (generally 3 to 4 inches of 8 mm, 9 mm 5 to 7 inches) and the degree of finish of the blade PASSED
Sharpness test: use A4 paper test N/A
Blade volume density test: Density scale FAILED
Red absorption test: will be 5pcs dry product knife put in the tray and add a small amount of red ink (did cover blade can soak 5-10 minutes, PASSED
Pressure test; PASSED
Hardness testing: HRA80-95 PASSED
Bending strength test: PASSED

3rd party preshipment products goods factory onsite inline final Random PSI TPI FRI DUPRO third party on-site in-line pre-shipment QA QC check quality control assurance services in China India Vietnam Thailand Malaysia Bangladesh Taiwan.