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What is the sampling standard of aql2.5?
Take the level of secondary general inspection as an example, the sampling quantity in 2000 is 125, the sampling scheme of AQL 2.5 (125,7) and the sampling scheme of AQL 4.0 (125, 10).

1)AC = acceptable number = use the first number below the arrow = use the first number above the arrow. The sampling quantity is carried out under the general inspection level II.

2) AQL0.0 10-0. 10 is used for inspection of electronic products and medical devices. AQL 1.0-6.5 is used for inspection of clothing and textiles.

Related introduction

Sampling inspection, also known as sampling inspection, is a statistical method and theory to randomly select a small number of products (samples) from a batch of products for inspection to judge whether the batch of products is qualified or not. Different from comprehensive inspection, the latter needs to inspect the whole batch of products one by one and pick out the unqualified products.

Sampling inspection is to infer the quality of the whole batch of products according to the inspection results of the products in the sample. If it is determined that the batch of products meets the pre-specified qualification standards, it will be accepted; Otherwise it will be rejected. Therefore, a batch of products that are considered qualified after sampling inspection may also contain some unqualified products.