Document Center is acquired by Nimonik

Abstract

ANSI/ASQ Z1.9-2008 Sampling Procedures and Tables for Inspection by Variables for Percent Nonconforming is an acceptance sampling system to be used on a continuing stream of lots for Acceptance Quality Limit (AQL) specified. It provides tightened, normal, and reduced plans to be used on measurements which are normally distributed. Variation may be measured by sample standard deviation, sample range, or known standard deviation. It is applicable only when the normality of the measurements is assured.

Both ANSI/ASQ Z1.4 “Sampling Procedures and Tables for Inspection by Attributes” and ANSI/ASQ Z1.9 “Sampling Procedures and Tables for Inspection by Variables for Percent Nonconforming” are to be used with a continuous supply. ANSI/ASQ Z1.4 is to be used with go/no-go data (sometimes called attribute data). ANSI/ASQ Z1.9 is to be used with measurements. Also note that Z1.9 assumes a normal distribution.

Notes

ANSI/ASQ Z1.9-2008 replaces ANSI/ASQ Z1.9-2003.

This document comes with our free Notification Service, good for the life of the document.

This document is available in Paper format.