What is your acceptable defect rate, and how is it measured?
We verify capacity and read/write on every unit before packing, and we hold a defined acceptance level agreed with you rather than a number we pick alone. The practical measure is a random sample from the production batch, tested and compared against the approved reference; the result is what sets whether the batch ships. We do not publish a single defect rate that pretends to apply to every product, because the acceptable level depends on the grade, the application and your own quality bar. Tell us your acceptance criterion and we confirm how the batch is checked against it.
How defects are measured
Every unit gets a capacity and read/write verification before packing — that is the floor, not the audit.
For a defined acceptance level, a random sample from the batch is tested against the approved sample.
The outcome decides shipment; a batch that misses your criterion is reworked or replaced, not shipped and argued over later.
Why no fixed public number
A generic defect rate would be either too loose for a medical buyer or too tight to be honest for a promotional one. The level is set per order against your requirement, which is why it belongs in the specification.
Sources
Figures quoted on this page are from the published reporting listed above. Where a number is an estimate rather than a published figure, it is described as approximate.
Frequently asked questions
Can I set my own AQL?
Yes. Tell us the acceptance level you work to and we build the inspection around it, so the batch is judged by your standard, not ours.
What if the sample fails?
We rework or replace the affected units and re-test before shipping, and we tell you what happened rather than shipping a batch that missed your criterion.
Working on a specification?
Send us the product type, capacity, quantity and target date. We reply to business enquiries within 1 business day.
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