NQA=4% meaning?

[MrAnhKieu]

Hi experts
I have a customer in France, and they are requesting an NQA =4%. What does it mean, and what is the equivalent AQL?
Could you explain in details ?

 

[ChrisM]

A quick "google" shows that in French, NQA = Niveau de Qualité Acceptable which is the equivalent of AQL in English