![]() ![]() Poor quality results in tightened inspection, while a consistent history of good quality and consistent production conditions allows reduced inspection. Switching rules meanwhile dictate normal, tightened, or reduced inspection according to production performance. Attendees will learn everything they need to know to address all three of these applications. ![]() Attendees will learn how to define a sample plan on the basis of (1) the lot size, (2) the inspection level, and (3) the acceptable quality limit (AQL).ĪNSI/ASQ Z1.9 can be used for single specification limits, two-sided specification limits, and even two-sided limits with different AQLs. These statistics also allow estimation of the nonconforming fraction at each specification limit. ANSI/ASQ Z1.9 (formerly MIL STD 414) uses sample statistics to determine whether a production lot, or incoming lot, should be accepted or rejected.
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