ASQ-Z1.4

ASQ-Z1.4 Sampling Procedures and Tables for Inspection by Attributes

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Sampling Procedures and Tables for Inspection by Attributes

Abstract

ANSI/ASQ Z1.4-2008 Sampling Procedures and Tables for Inspection by Attributes is an acceptance sampling system to be used with switching rules on a continuing stream of lots for Acceptance Quality Limit (AQL) specified. It provides tightened, normal, and reduced plans to be applied for attributes inspection for percent nonconforming or nonconformities per 100 units.

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.

ANSI/ASQ Z1.4-2008 replaces ANSI/ASQ Z1.4-2003.

Notes

Claudias Notes:
You may be able to remember back when this document was known as ASQC Z1.4.The Standards Developing Organization that develops this standard changed its name from the American Society for Quality Control to the American Society for Quality in 1997.When it did so, all its document numbers changed from ASQC-xxx to ASQ-xxx!

 

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Document Number

ASQ-Z1.4

Revision Level

2008 EDITION

Status

Current

Publication Date

Jan. 1, 2008

Page Count

94 pages

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