what does an aql of 2 5 mean 
an aql of 2 5 means that only 2 5 of an order can be defective in order for it to be acceptable if more than 2 5 of the other is defective then it doesn t meet the agreement between the buyer and producer so for example if 20 000 pairs of shorts are ordered only 1 250 can be defective to reach an aql of 2 5 