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Code of Federal Regulations Title 7. Agriculture § 7.42.132 Determining cumulative sum values

Current as of January 02, 2025 | Updated by Findlaw Staff

(a) The parameters for the on-line cumulative sum sampling plans for AQL's applicable to origin inspection are as follows:

Acceptable quality levels

Type of inspection

Normal

Tightened

Reduced

T

L

S

T

L

S

T

L

S

0.25․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․

0.05

0.95

0.35

0.1

0.9

0.3

0

0

0

1.5․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․

0.5

2

1

0.8

1.6

0.4

0.5

0.5

0

6.5․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․․

2

3

1

2.5

3

1

1

2

1

(b) At the beginning of the basic inspection period, the CuSum value is set equal to the starting value (“S”) for the specified CuSum plan. The CuSum value is then determined for each consecutive subgroup as follows:

(1) Add the number of defects for the present subgroup to the CuSum value of the previous subgroup.

(2) Subtract the subgroup tolerance (“T”).

(3) The CuSum value is reset in the following situations;  however, determine portion of production acceptability (see § 42.133) prior to resetting the CuSum value:

(i) Reset the CuSum value to zero (0) if the CuSum value is less than zero (0).

(ii) Reset the CuSum value to the acceptance limit (“L”) if the CuSum value exceeds the acceptance limit (“L”).

1  Includes matters within the responsibility of the Federal Grain Inspection Service.
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Cite this article: FindLaw.com - Code of Federal Regulations Title 7. Agriculture § 7.42.132 Determining cumulative sum values - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-7-agriculture/cfr-sect-7-42-132/

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