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1) Acceptance Sampling
Acceptance Sampling is used to decide whether to accept
or reject a production lot. It is performed once the production
lot has been completed and packed. Basic procedures for
acceptance sampling includes these three steps: select a
sample from a production lot, inspect the units in the sample,
and use the result to decide whether or not to accept or
reject the lot.
2) AQL (Acceptable Quality Levels)
As a quality control company in Asia, Built in China uses
the Acceptable Quality Level (AQL) to establish a maximum
allowable error rate or variation from the standard. Acceptance
testing will cease immediately if the failure rate of the
product being tested exceeds the minimum Acceptable Quality
Level.
3) Batch or Lot Sample
A batch or lot is a collection of products – all identical
in size, type, conditions and time of production – from
which a sample will be taken to decide whether or not it
conforms to the acceptance inspection.
4) Defect classification
Defects detected during inspections are generally classified
in 3 categories: critical, major and minor defect.
Critical Defect
The Critical Defect corresponds to a defect likely to result
in unsafe conditions for end-users. You can provide your
own list of critical defects to be inspected.
Major Defect
This AQL corresponds to any defect, excluding Critical Defects,
which is likely to result in failure, or reduced usability
of the product unit. A product is said to have a Major Defect
when it is not dangerous but cannot be sold because of the
defect. You can provide your own list of Major Defects to
be inspected.
Minor Defect
This AQL corresponds to a defect that is not likely to reduce
the usability of the product unit for its intended purpose,
or is a departure from established standards having little
bearing on the effective use or operation of the unit. A
Minor Defect is nevertheless a workmanship defect beyond
the defined quality standard. You can provide your own list
of Minor Defects to be inspected
5) During Production Inspection (DUPRO)
The production is inspected when at least 20% of the order
has been completed so as to ensure that contractual obligations
regarding specifications, packaging, packing and marking
are met. If improvement and rectification recommendations
have been given during an Initial Production Check, the
During Production Inspection determines whether or not this
advice has been successfully heeded. More generally, the
During Production Inspection makes it possible to provide
recommendations on site, so that the quality is maintained
throughout the entire production phase.
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