| # Examples of the Acceptable Quality Level (AQL) Example
Single Sampling
Acceptable Quality Level | 60 %
Sample Size | 30 pieces
AQL 60 % means that 60% of the sample can be defective and the sample would be rejected only if the rejected piece is more than 60%.
Sample | Sample Quantity | Result
1 | 5 pieces | Good
2 | 10 pieces | Bad
3 | 15 pieces | Good
Actual Quality Level = [ 10 / (5+10+15 ) ] x 100% = 33.33 % The actual defective level is much lesser than the Acceptable Quality level. Consequently, the order quantity or the sample is accepted.
Continuous Sampling
Acceptable Quality Level | 60 %
Order Quantity | 300 pieces
Frequency | 100 pieces
Sample size | 10 pieces
Sample no | Sample Size | Actual Quality Level
1 | 10 pieces | 70 % bad
2 | 10 pieces | 50 % good
3 | 10 pieces | 80 % bad
Compare the results to the Acceptable Quality Level.
Sample | Quality Level | Quantity
- | Actual | Acceptable | Accepted | Rejected
1 | 70 % | 60 % | 0 | 100 pieces
2 | 50 % | 60 % | 100 pieces | 0
3 | 80 % | 60 % | 0 | 100 pieces
- | - | Total | 100 pieces | 200 pieces