ANSI/ASQ S1-2012

This publication is intended to be used only in conjunction with the latest version of ANSI/ASQ Z1.4. There are two restrictions on the use of the ANSI/ASQ Z1.41 procedures in conjunction with this publication:a) Multiple sampling plans are not to be used during States 2 and 3 of this publication, and

b) It is strongly recommended that sampling plans with acceptance numbers of zero not be used during States 2 and 3 of this publication.This standard defines a generic attribute skip-lot sampling program. The purpose of this publication is to provide procedures, for reducing the inspection effort on products submitted by those suppliers who have demonstrated their ability to control, in an effective manner, all facets of quality and who consistently produce lots which meet requirements. Inspection may take place at the suppliers or purchasers locations or at an interface between operations of a production process. The skip-lot procedures are designed to be used with the attribute lot-by-lot plans described in ANSI/ASQ Z1.4.

The skip-lot program described in this standard is based on papers by Liebesman shown in section 2.0. Skip-Lot sampling was originally developed by Dodge. For a discussion of the Dodge plans, see references Dodge (1955), Dodge and Perry (1971), Schilling (1982), and Stephens (2001) cited in the Bibliography.

This product is related to: ANSI/ASQ Z1.4-2008 - Sampling Procedures and Tables for Inspection by Attributes
This product replaces:ANSI/ASQ S1-1996 - An Attribute Skip-Lot Sampling Program