TTS GLOBAL
Classify by consequence
Consider safety, intended function, durability, appearance and customer use. The same visible defect can have a different consequence on a toy, decorative item or load-bearing component. Build a photo catalogue with clear boundary examples and an escalation rule for a finding that the catalogue does not cover.
Separate classification from counting
Confirm whether the plan counts nonconforming units or individual nonconformities and how multiple findings on one unit are recorded. Our calculator counts nonconforming units. A zero-acceptance rule for critical findings must be agreed separately; it is not an AQL value of zero and does not prove that the unexamined lot has no critical defects.
Use a concrete example
For a normal single-sampling example of 5,000 units, level II and AQL 2.5, the calculator gives 200 samples, Ac 10 and Re 11. These values apply to that selected plan and class. A different AQL, level or counting convention requires its own agreement; a safety concern can require action independent of the statistical result.