ISO 3951-2 : 2013(R2018)

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Acceptance quality limit (AQL)
6 Switching rules for normal, tightened, and
   reduced inspection
7 Relation to ISO 2859-1 and ISO 3951-1
8 Consumer protection
9 Accommodating measurement variability
10 Planning
11 Choice between variables and attributes
12 Choice between the s-method and sigma-method
13 Choice of inspection level and AQL
14 Choice of sampling scheme
15 Preliminary operations
16 Standard procedures for the univariate s-method
17 Standard multivariate s-method procedures for
   independent quality characteristics
18 Standard univariate sigma-method procedures
19 Standard multivariate sigma-method procedures for
   independent quality characteristics
20 Standard multivariate combined s-method and
   sigma-method procedures for independent quality
   characteristics
21 Procedure during continuing inspection
22 Normality and outliers
23 Records
24 Operation of switching rules
25 Discontinuation and resumption of inspection
26 Switching between the s-method and sigma-method
Annex A (normative) - Table for determining the sample
        size code letter
Annex B (normative) - Form k single sampling plans:
        s-method
Annex C (normative) - Form k single sampling plans:
        sigma-method
Annex D (normative) - Form p* single sampling plans:
        s-method
Annex E (normative) - Form p* single sampling plans:
        sigma-method
Annex F (normative) - Values of f[s] for maximum sample
        standard deviation (MSSD)
Annex G (normative) - Values of f[sigma] for maximum
        process standard deviation (MPSD)
Annex H (normative) - Estimating the process fraction
        nonconforming for sample size 3: s-method
Annex I (normative) - Values of c[U] for upper control limit
        on the sample standard deviation
Annex J (normative) - Supplementary acceptability constants
        for qualifying towards reduced inspection
Annex K (normative) - Procedures for obtaining s and sigma
Annex L (normative) - Estimating the process fraction
        nonconforming
Annex M (informative) - Consumer's risk qualities
Annex N (informative) - Producer's risks
Annex O (informative) - Operating characteristics for
        the sigma-method
Annex P (informative) - Accommodating measurement variability
Bibliography

This part of ISO 3951 is primarily designed for use under the following conditions:a) where the inspection procedure is to be applied to a continuing series of lots of discrete products all supplied by one producer using one production process.