Continuous sampling plan

In acceptance sampling, a plan, intended for application to a continuous flow of individual units of product, that involves acceptance and rejection on a unit by unit basis and employs alternate periods of 100% inspection and sampling, the relative amount of 100% inspection depending on the quality of submitted product. Continuous sampling plans usually require that each t period of 100% inspection be continued until a specified number, i, of consecutively inspected units are found clear of defects. Note: For single level continuous sampling plans, a single d sampling rate (for example, inspect 1 unit in 5 or 1 unit in 10) is used during sampling. For multilevel continuous sampling plans, two or more sampling rates may be used: The rate at any time depends on the quality of submitted product.