Enter values for acceptance sampling
Explanation
Use this activity to enter values to
be used for acceptance sampling when creating the analyses from the control plan.
Standard
- ISO 2859-1:1999 - Sampling
procedures for inspection by attributes - Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection.
- ISO 2859-3:2005 - Sampling procedures for
inspection by attributes - Part 3: Skip-lot sampling procedures
Inspection Level
- The inspection level sets the
relative amount of inspection. There are three general inspection levels, I, II
and III. Unless otherwise specified, level II shall be used. I is used when less
discrimination is required and III is used when greater discrimination is
required. There are also four additional special levels, S-1, S-2, S-3 and S-4
which may be used when small sample sizes are necessary and larger sampling
risks can be tolerated.
Acceptance Quality Limit (AQL)
- The AQL is expressed as percentage of
nonconforming items. For a given AQL, the great majority of lots submitted will
be accepted if the number of nonconforming items is not greater than the AQL.
Sampling Plans
- With a single sampling plan only one
sample is drawn, and acceptance is decided from the number of nonconforming
items in that sample. With a double sampling plan, the sample size is smaller.
But the number of nonconforming items may fall in between the acceptance and
rejection numbers requiring a second sample to be drawn to decide on
acceptance or rejection. With a multiple sampling plan, the sample size is even
smaller, but up to five consecutive samples can be drawn to decide on acceptance
or rejection.
Prerequisites
A control plan header must exist.
System Effects
Values for acceptance sampling are defined on the control plan header.
Note: You also need to use the acceptance sampling inspection code on appropriate
control plan lines.
Window
Control Plan - Manufacturing
Control Plan - Purchasing
Control Plan - Template
Related Window Descriptions
Control Plan - Manufacturing
Control Plan - Purchasing
Control Plan - Template
Procedure
- Query for the Control Plan for
which you want to enter the values for acceptance sampling
in the
Control Plan
- Manufacturing,
Control Plan - Purchasing
or
Control Plan - Template window.
- From Control Plan - Manufacturing or
Control Plan - Inventory window, click the Detail tab.
From Control Plan - Template window you will find
the fields in the following steps in the header section.
- Enter a standard in
Standard drop-down list.
- Enter an inspection level in the
Inspection Level drop-down list.
- Enter a value for Acceptance
Quality Limit (AQL) in the
AQL field.
- Enter a value for sampling plan
in the Sampling Plan drop-down list.
- Select Qualification for Skip Lot Sampling
Approved check box if sampling plans Skip Lot-Single or Skip Lot-Double is selected.
- Save the information.