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Can I ask a question associated with ANSI ASQ Z1.4?
For instance, AQL=0.65% and code letter J with single sampling plan- normal inspection is used. It requires 80 samples and Ac/Rej=1/2. Here 1 defect is found after inspection. In this scenario, is the following process acceptable?
Step Example
1 In table 2-A initial sampling for AQL 0.65% is 80 with Ac=1/Re=2 (2
defect found)
Go down to 125 with Ac=2/Re=3 (which has AQL 0.65% and code
letter K)
2 Take 45 samples more
3 If 0/45 -> total 2/125 -> Accept
I think that for this purpose, there is double sampling plan and it should be used from the beginning.
My question is ?Is it acceptable or not? If it is acceptable or unacceptable, why? ?
For instance, AQL=0.65% and code letter J with single sampling plan- normal inspection is used. It requires 80 samples and Ac/Rej=1/2. Here 1 defect is found after inspection. In this scenario, is the following process acceptable?
Step Example
1 In table 2-A initial sampling for AQL 0.65% is 80 with Ac=1/Re=2 (2
defect found)
Go down to 125 with Ac=2/Re=3 (which has AQL 0.65% and code
letter K)
2 Take 45 samples more
3 If 0/45 -> total 2/125 -> Accept
I think that for this purpose, there is double sampling plan and it should be used from the beginning.
My question is ?Is it acceptable or not? If it is acceptable or unacceptable, why? ?