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We have a product line with a lot size of 500. The inspection calls out for Level S-3, AQL=1.5% (Letter D). For a single sampling plan, that is 8 samples. Accept on 0 rejects, Reject on 1. I understand that much.
When a failure occurs, it has been suggested to then use a double sampling plan to further sample the lot to determine if it can be released. When I look on the other side of the AQL Inspectors rule, for 1.5% (Letter D), an asterisk is there and the notes suggests to use the single sampling plan on the other side. Since we already inspected 8 samples and had 1 reject, do we just pull another 8 samples (doubling the initial sample size) and release the lot if there are no more rejects?
The Double sample plans seem easy if you have a letter where the Acc-Rej is already defined 0-2, 0-3, but there doesnt seem to be a very good explanation when the * is identified.
Any help woudl be appreciated.
When a failure occurs, it has been suggested to then use a double sampling plan to further sample the lot to determine if it can be released. When I look on the other side of the AQL Inspectors rule, for 1.5% (Letter D), an asterisk is there and the notes suggests to use the single sampling plan on the other side. Since we already inspected 8 samples and had 1 reject, do we just pull another 8 samples (doubling the initial sample size) and release the lot if there are no more rejects?
The Double sample plans seem easy if you have a letter where the Acc-Rej is already defined 0-2, 0-3, but there doesnt seem to be a very good explanation when the * is identified.
Any help woudl be appreciated.