UNI ISO 3951-2 : 2014
Current
The latest, up-to-date edition.
SAMPLING PROCEDURES FOR INSPECTION BY VARIABLES - PART 2: GENERAL SPECIFICATION FOR SINGLE SAMPLING PLANS INDEXED BY ACCEPTANCE QUALITY LIMIT (AQL) FOR LOT-BY-LOT INSPECTION OF INDEPENDENT QUALITY CHARACTERISTICS
06-11-2014
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 specifies an acceptance sampling system of single sampling plans for inspection by variables.
| Committee |
CT 16
|
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| ISO 3951-2:2013 | Identical |
| ISO 3951-1:2013 | Sampling procedures for inspection by variables — Part 1: Specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL |
| ISO 16269-4:2010 | Statistical interpretation of data Part 4: Detection and treatment of outliers |
| ISO 7870:1993 | Control charts General guide and introduction |
| ISO 10576-1:2003 | Statistical methods — Guidelines for the evaluation of conformity with specified requirements — Part 1: General principles |
| ISO 2859-2:1985 | Sampling procedures for inspection by attributes — Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection |
| MIL-STD-414 Base Document:1957 | SAMPLING PROCEDURE AND TABLE FOR INSPECTION BY VARIABLES FOR PERCENT DEFECTIVE |
| ISO 16269-6:2014 | Statistical interpretation of data — Part 6: Determination of statistical tolerance intervals |
| ISO 3534-2:2006 | Statistics — Vocabulary and symbols — Part 2: Applied statistics |
| ISO 80000-2:2009 | Quantities and units Part 2: Mathematical signs and symbols to be used in the natural sciences and technology |
| ISO 2859-10:2006 | Sampling procedures for inspection by attributes Part 10: Introduction to the ISO 2859 series of standards for sampling for inspection by attributes |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 3534-1:2006 | Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability |
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